Faculty

Maria Gurrieri, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Maria Gurrieri, MD, is a Staff Physician at Barnes-Jewish Hospital and a Voluntary Clinical Instructor in Medicine. She works full time taking care of patients in the Pulmonary Progressive Care Unit, Bone Marrow Transplant service, Hospitalist service, and at PCDC. She serves in the Faculty Development Committee, where she contributed to the development of the “Roads to Success” seminar series for the hospitalist faculty.

Samantha Harris, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Samantha Harris joined the Division of Hospital Medicine as an Instructor in Medicine in June 2024. She grew up on Long Island, New York, before attending Tufts University in Boston, where she graduated summa cum laude with the highest thesis honors with a bachelor’s degree in biology. After she graduated college, she moved to Madison, Wisconsin, and worked for Epic Systems, where she specialized in operating room software and focused on client leadership engagement and process improvement of surgical patient workflows. This experience at Epic inspired her to learn more about technology and business in health care. She returned to Boston for a joint MD/MBA degree at Harvard Medical School and Harvard Business School, respectively, during which time she also interned at the insurance company Humana, working on a machine learning project to identify trends to improve long-term quality outcomes for patients. Dr. Harris completed her internal medicine internship and residency at the Washington University School of Medicine in St. Louis/Barnes Jewish Hospital in 2021–2024.

Ihab Hassanieh, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Ihab Hassanieh, MD, is an Instructor of Medicine in the Division of Hospital Medicine at the Washington University School of Medicine. He has an interest in teaching and mentorship of students in the hospitalist service and is part of the research committee within the Division of Hospital Medicine. His research interests are in cardiac research and dissemination and implementation of evidence-based interventions. Expanding his expertise, he is currently pursuing dual master's degrees in business administration and clinical investigation. His bibliography includes significant contributions to cardiology research, with a focus on innovative treatment approaches and clinical outcomes. Dr. Hassanieh's work embodies a commitment to enhancing healthcare through rigorous research, teaching, and direct patient care.

Krysta Heath, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Krysta Heath, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. She completed internal medicine residency at Washington University in St. Louis/Barnes-Jewish Hospital. Her primary role is direct care of hospitalized patients at both Barnes-Jewish Hospital and Barnes-Jewish West County Hospital. She has a particular interest in nocturnist medicine. She serves on the patient care operations committee and has an interest in patient triage and throughput as well as admission efficiency.

Benjamin Hoemann, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Benjamin L. Hoemann, MD is an Instructor in Medicine in the Division of Hospital Medicine. He received his medical degree from the Columbia University Vagelos College of Physicians and Surgeons and completed his internal medicine residency at Washington University in St. Louis. He has a special interest in addiction medicine, point-of-care ultrasound (POCUS), and medical education. He is the inaugural Hospital Medicine Research Fellow and a member of the Quality Improvement and Patient Safety (QIPS) and Research committees within the division. He works as an attending physician on the general medicine and teaching hospitalist services.

Thomas Hoyt, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Thomas Hoyt, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine with special interests in resident and undergraduate medical education. He currently serves on the Gateway Medicine Clerkship Clinical Competency Committee for Phase 2 Medical Students. Additionally, he is a member of various committees with a focus on improving care for patients with Opioid Use Disorder (OUD). He attends on a variety of services including the General Medicine Inpatient Teaching Service as well as Hospitalist Direct Care at both Barnes-Jewish Main and West County Hospitals.

Alvin Jeon, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Alvin Jeon, MD, is an Instructor in Medicine in the Division of Hospital Medicine. He received his medical degree from Jacobs School of Medicine and Biomedical Sciences at the University at Buffalo and completed his internal medicine residency at Barnes-Jewish Hospital/Washington University in St. Louis. He has a growing interest in medical education and efficient inpatient care. He attends primarily on the general inpatient hospitalist and oncology hospitalist services at this time, and he looks forward to working with students and residents.

Joyce Ji, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Joyce Ji, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine with a special interest in education. She attends frequently on the inpatient medicine teaching service in addition to educating students and residents while caring for patients directly on the hospitalist service. She is completing the POCUS Credentialing Pathway in order to improve her utilization of POCUS both in patient care and in trainee education. In addition to student and resident education, Dr. Ji also has a particular interest in faculty education. She serves as the Hospitalist Grand Rounds Chair as part of the Education Committee, and coordinates with experts from different departments and interests to present at the weekly Grand Rounds. She has additional interests in quality improvement and faculty development. As part of the Executive Committee for Advancing Women’s Careers, she is working on promoting transparency and communication within the Department of Medicine in order to improve gender equity.

Eric Johnson, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Eric K. Johnson, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. His work responsibilities balance inpatient care on the Hospitalist and Consult services with supervising as attending on both the Firm and Procedure services. Primary interests include medical student and resident education, particularly guiding and optimizing evidence-based patient care and honing clinical problem-solving skills. Accordingly, he is a regular discussant at the weekly CPC (Clinicopathologic Conference), which showcases astute medical diagnosis through a multidisciplinary approach, and he has received multiple Teacher of the Year awards to date. He has also contributed to three consecutive editions of The Washington Manual of Medical Therapeutics. An additional, albeit more informal passion of his has been following the COVID-19 pandemic since its inception, which has so far yielded several publications in peer-reviewed journals.

Anand Kadakia, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Anand Kadakia joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. He completed his medical education at the Government Medical College of Baroda in India. Dr. Kadakia actively engaged in community service initiatives, particularly focusing on assisting patients with sickle cell disease. He conducted research at the University of Maryland School of Medicine, investigating the role of NAD in diabetic neuropathy. Dr. Kadakia completed his Internal Medicine residency at Jersey Shore University Medical Center in New Jersey, where he prioritized serving underserved populations and leading quality improvement projects.

Lalit Kalvala, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Lalit Kalvala, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. He primarily works on general medicine floors and occasionally on oncology and bone marrow transplant floors. He contributes to the recruitment of hospitalists by serving as a member of the Hospitalist Recruitment Committee. Additionally, he is dedicated to patient safety and quality improvement, participating as a member of the Patient Safety & Quality Improvement Committee.

Ankita Kapoor, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Ankita Kapoor, MD, joined the Division of Hospital Medicine as an Assistant Professor of Medicine in October 2022. She provides direct care to patients admitted on the Hospitalist Service at BJH as well as BJWCH. She serves as the Director of the Advanced Practice Clinician (APC) Workforce Development, in the Division of Hospital Medicine. She enjoys teaching residents and medical students along with the PA students. She has assisted with curating an APC educational Curriculum and a robust APC evaluation process. She is also the Director of the Hospital Medicine Fellowship Program for APCs at BJH. Dr. Kapoor serves on several committees within the Division, such as Physician and APC Recruitment, Quality Improvement & Patient Safety as well as Orientation. She is also involved in the WashU Gateway Medical Conference Task Force. She also aids in interviewing and recruiting medical students for the IM Residency Program. Her current areas of interest are general internal medicine, particularly hospital medicine and inpatient services.

Gizem Kaya, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Kaya joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. She was accepted to one of the top third medical schools in Turkey after being part of the 0.1 percentile of students in the national exam of Turkey. During medical school, she participated in multiple community service projects with the Rotary International Organization in Turkey, including blood donation projects to raise awareness and mental/mood supporting projects for children in Pediatric Hematology and Oncology hospitals. After completing medical school, she started to work as a research fellow in Cleveland Clinic Digestive Disease and Surgery Institute in Cleveland, Ohio, by 2020. She participated in multiple research projects during her time at the Cleveland Clinic about inflammatory bowel diseases and advanced endoscopic procedures, including endoscopic mucosal resection and endoscopic submucosal dissection. She completed her Internal Medicine training at the University of Pittsburgh Medical Center in Central Pennsylvania prior to joining the division.

Martin Kerrigan, MD
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Martin Kerrigan, MD, is an Associate Professor of Medicine and serves as a Co-Director of the Internal Medicine Service in the Division of Hospital Medicine. Dr. Kerrigan also serves as the Internal Medicine Associate Clerkship Director for the School of Medicine and works as a Physician Utilization Management Advisor for Barnes-Jewish Hospital. His clinical interests include medical consultation, medical student education, curriculum development, and providing high value clinical care. He attends on the inpatient general medicine teaching service (Firm), on the medicine consult service, and on the hospitalist direct care service.

Ali Khan, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Ali Ayub Khan joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. He grew up in Oklahoma City, Oklahoma, before attending the University of Oklahoma for undergraduate studies. He graduated magna cum laude with a bachelor’s degree in biochemistry with a minor in Spanish while also completing the Interdisciplinary Honors Program. He dedicated much of his time during undergrad to the service of his community, specifically the underserved and uninsured Hispanic populations, through volunteer work at free medical clinics. He continued his studies at the University of Oklahoma and obtained a master’s degree in science in the field of prevention sciences and addiction. He went on to receive his medical degree from the University of Oklahoma—Tulsa School of Community Medicine. Dr. Khan then completed his internship and residency training in Internal Medicine at the Saint Louis University School of Medicine in St. Louis, Missouri. His training at this large university center and safety net hospital further reinforced the importance of socioeconomic factors on population health and health disparities.

Hazera Khatun, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Hazera Khatun joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. She earned her MBBS degree from Dhaka Medical College in Bangladesh and completed her hematology training, receiving a fellowship from BCPS. Dr. Khatun has published multiple articles in clinical research on hematology. She obtained an MSc in Biomedical Sciences from King's College London, UK, as a Commonwealth Scholar. In the USA, she completed her residency in Internal Medicine and has been practicing as a full-time hospitalist since 2019. Dr. Khatun also has a keen interest in clinical education and briefly taught as a Clinical Assistant Professor at the Warren Alpert School of Medicine.

Daniel Kichura, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Daniel Kichura, MD is an Assistant Professor of Medicine in the Division of Hospital Medicine. He is the Director of Malignant Hematology (Bone Marrow Transplant) Hospitalists and co-chair of the Hospitalist BMT/Oncology Committee. He attends on the Malignant Hematology and Medical Oncology services, and as a teaching attending for the Internal Medicine residency program (Firm). He also serves on the Patient Care Operations, Quality Improvement and Patient Safety, and Recruitment committees and the Oncology Fall Response Group. He is interested the care of hospitalized malignant hematology patients, patient safety and quality improvement, teaching medical students and residents, and mentoring new hospitalists.

Yamuna Kondapally, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Yamuna Reddy Kondapally, MD, is an Instructor in Medicine in the Division of Hospital Medicine. Prior to joining the division, Dr. Kondapally worked as a primary care physician in a rural community in Hemet, California. She received her medical degree from Osmania Medical College, India and residency in Internal Medicine from Saint Peters University Hospital/Rutgers Robert Wood Johnson medical school. She has a special interest in Hematology/Oncology. Currently working as an attending physician on oncology hospitalist service.

Danielle Kubicki, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Danielle Kubicki, MD, is an Instructor in Medicine in the Division of Hospital Medicine. She received her medical degree at Vanderbilt University and trained in internal medicine at Washington University in St. Louis/BJH, where she completed the BJH/WashU Primary Care in Internal Medicine program. She has furthered her medical education through contributions to the national Society of General Internal Medicine and the Human Diagnosis Project. She enjoys teaching residents and medical students on the Hospitalist service. As a graduate of the Primary Care in Internal Medicine program, she has a particular interest in helping patients transition seamlessly from the hospital to the outpatient setting.

Amrat Kumar, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Amrat Kumar joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. He grew up in Diplo, Pakistan, and received medical education at Sindh Medical College, Karachi, Pakistan. He then spent a few years working as a medical officer near his hometown before moving to the USA for his internal medicine residency at Bassett Medical Center in Cooperstown, NY. After graduation from his residency training in June 2020, Dr. Kumar joined Bassett Medical Center as an attending physician in the hospitalist division, where he had the opportunity to teach medical students and residents. He recently also had the opportunity to present grand rounds on “approach to acute thrombocytopenia in hospitalized patients.” Before his residency, he worked as a visiting scientist and research assistant in the Laboratory of Diabetes and Diabetes-Related Disorders at the Feinstein Institute for Medical Research for close to a year and studied the effects of metformin, metabolic syndrome, obesity, and the obesity paradox.

Alex Lane, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Alex Lane, MD, is an Assistant Professor of Medicine and Fellow of the American College of Physicians. He has interests in medical education of residents, high value care and quality improvement, and inpatient treatment of opiate use disorder. Dr. Lane serves as Co-Director for Intern Education for the Division of Hospitalist Medicine. He attends as a general hospitalist as well as the general medicine inpatient teaching service (FIRM.) He serves on the BJH Glycemic Management Committee and the DHM Education committee, and he has published recent literature using mindful lab ordering to reduce inpatient lab draws.

Gina LaRossa, MD
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Gina LaRossa, MD, is an Associate Professor of Medicine in the Division of Hospital Medicine. She serves as medical director for the 3500 Observation Unit, director of the ED Hospitalist program, co-director of the Medicine Consult service and as key clinical faculty for the Internal Medicine Residency Program. Gina has interests in clinical operations, medical education and quality improvement. She attends frequently on the inpatient medicine teaching service and medicine consult service, as well as caring for patients directly on the hospitalist service.

Eileen Lee, MD
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Eileen Lee, MD, is an Associate Professor of Medicine and Co-Director of the School of Medicine's Phase III Capstone Course, which reinforces and evaluates skills essential for students' transition to residency. Dr. Lee has extensive experience in communication skills training, frequently facilitates communication skills exercises for students and residents, and directs the medicine clerkship's motivational interviewing session. As part of the Division of Hospital Medicine's Faculty Development Committee, she helped create the Roads to Success seminar, which imparts junior medicine faculty with basic teaching skills and other foundational knowledge important for a career in academic medicine. She also created the Division's Peer Observation of Teaching Program. Clinically, she serves as an attending on the inpatient medicine (FIRM) service and the procedure service, and she provides direct patient care on the hospitalist service. She is a fellow in the School of Medicine's Academy of Educators and a member of the Society of Hospital Medicine, the American College of Physicians, and the Alliance for Academic Internal Medicine.

Lyndon Lee, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Lyndon Lee, MD, is a clinical Instructor in Medicine in the Division of Hospital Medicine. He received his medical degree from Texas A&M University and completed his residency in Internal Medicine at the University of Texas at Houston in 2023. His practice involves caring for acutely ill patients in the hospital. His clinical interests include utilizing point-of-care ultrasound (POCUS) for diagnostic and therapeutic applications in an inpatient setting. He also has a significant interest in medical education and enjoys working with and teaching medical students and residents.

Han Li, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Han Li, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. She attends on direct care and medicine resident teaching services at Barnes Jewish Hospital, Barnes West County, and The Rehab Institute of St. Louis. Her academic interests are in medical education, quality improvement, clinical decision support and user design. She serves as a Deputy Editor at UpToDate, a continuously updated resource providing evidence-based and actionable recommendations guiding clinicians at the point of care.
She previously served as the Director of Quality Improvement and Patient Safety for the Division of Hospital Medicine. Previous work has included creation of the WashU COVID Care Manual, implementation of a sepsis detection alert, and improvement of antibiotic delivery to patients with septic shock.

Michael Lin, MD
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Michael Lin, MD, is an Associate Professor of Medicine and Senior Fellow of Hospital Medicine. His interests include teaching and education, process improvement, and utilization management. He serves on the Internal medicine residency program evaluation committee, the Department of Medicine’s operations executive council, and multiple other committees for both Washington University and BJC Healthcare. He serves on the Society of Hospital Medicine Annual Conference Committee and a member of the Executive Council of the Society of Hospital Medicine Interhospital Transfer Special Interest Group. He chaired two Society of Hospital Medicine’s Academic Hospitalist Leadership Summits and served on the Society of Hospital Medicine’s Academic committee. He is president-elect of the Barnes Jewish Hospital Medical Staff Association. He serves as a physician advisor for Barnes-Jewish Hospital. He is the medical director of the BJC Healthcare system transfer center covering 11 hospitals across the system.

Patricia Litkowski, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Patricia Litkowski, MD, is an Assistant Professor of Medicine and the Medical Director of Patient Experience at Barnes-Jewish Hospital. She also serves as the Director of Hospitalist Services for Inpatient Medical Oncology. She has interest in the care of hospitalized patients with cancer, interprofessional communication and teamwork, and improving the overall experience that patients have while receiving care in the hospital. Her research interests include reducing readmissions and improving length of stay.

Adam Littich, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Adam Littich, MD is an Assistant Professor of Medicine and the Medical Director of the Hospitalist Service at Barnes-Jewish West County Hospital (BJWCH). He is the Chief of Staff at BJWCH until 2026, where he represents the entire medical staff and serves as a liaison between the hospital and the physicians and other providers. He is active in leadership at BJWCH, being involved in all aspects of the delivery of inpatient care. He is a member of multiple committees and has a strong interest in quality improvement and high value inpatient care. In addition to his leadership roles, he continues to enjoy direct patient care as a full-time hospitalist at BJWCH. Dr. Littich also educates future physicians via the medicine teaching services (FIRM Medicine, Procedure Team) at Barnes-Jewish Hospital. He has been a member of the Division of Hospital Medicine since 2012.

Shiyuan Liu, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Anabeth (Shiyuan) Liu, MD, is an Instructor in Medicine in the Division of Hospital Medicine, who works on the bone marrow transplant and oncology services. She has special interests in hematology, oncology, health services and outcomes, and community outreach. She has presented posters at the American Society of Clinical Oncology and American Society of Hematology conferences. She is in the process of preparing a manuscript focused on risks of acute care utilization in people with opioid use and co-occurring sickle cell disease. She serves on the BMT/oncology and wellness committees. She also collaborated with the Patient Care Operations committee to draft Transition of Service expectations in order to help reduce gaps in care during the hospitalist weekly shift change.

Sonya Liu, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Sonya Liu, MD, is an Instructor in Medicine in the Division of Hospital Medicine and enjoys working on a variety of different inpatient hospitalist services including general hospitalist service, medicine firm teaching service, nocturnist/admitter, ED hospitalist, oncology/BMT service, Barnes West County, and medical consultation services at TRISL. She currently serves on the hospitalist patient care operations committee as well as participates on the Washington University School of Medicine Committee on Admissions to review and rate applications as part of the medical student admissions process. Her areas of interest include teaching medical students and residents, antimicrobial stewardship, and optimizing transitions of care (for example, medication reconciliation on admission and discharge).

Ningning Ma, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Ningning Ma, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. She completed internal medicine residency at Washington University in St. Louis/Barnes-Jewish Hospital. She is a member of the patient care operations committee. Her primary role is direct care of hospitalized patients at Barnes-Jewish Hospital. She has a particular interest in nocturnist medicine and nighttime resident education.

Sarakshi Mahajan, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Sarakshi Mahajan, MD, joined the Division of Hospital Medicine in the Department of Internal Medicine as a clinical instructor in July, 2023. She recently completed her fellowship in geriatrics from University of Arkansas Medical Sciences in June, 2023. Her special clinical interests encompass inpatient medicine, with emphasis on patient safety and quality improvement, medical education, geriatric medicine and improvement of elderly care in hospitals, neuro-cognitive disorders, and public health. Her research interests include microbiome and its role in neuro-cognitive impairment, role of artificial intelligence in medicine, improving outcomes in patients with delirium, and identifying and reducing caregiver stress.

Khalid Mahmood, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Khalid Mahmood, MD, is an Instructor in Medicine in the Division of Hospital Medicine and works primarily on the Oncology and Bone Marrow Transplant service as a hospitalist. His main area of interest is improving the quality of care amongst patients admitted to Oncology/BMT service. He is also involved in clinical research within the realm of oncology, which aids in the management of the complex medical problems of solid organ and leukemia patients. He serves as an active member of the Oncology/BMT committee which mainly focuses on QA/QI projects to further improve this growing niche of hospital medicine.

Robert Mahoney, MD, FACP, SFHM
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Robert Mahoney, MD, FACP, SFHM, is an Associate Professor of Medicine at Washington University. He serves as Vice Chief of Clinical Efficiency for the Division of Hospital Medicine and Lead Utilization Management Physician Advisor for Barnes-Jewish Hospital. He chairs the Hospital Medicine division’s Education Committee and Barnes-Jewish Hospital’s Health Information Management committee; he co-chairs the Hospital’s Laboratory Stewardship committee and serves on School of Medicine’s Committee on Admissions. He attends on the direct care and teaching (Firm) services at Barnes-Jewish Hospital and the internal medicine consult service and the bedside procedure service. His expertise includes medical coding and documentation, health information management, medical education, evidence-based medicine, and case management and care progression. He is certified in physician-based coding and has been named Fellow of the American College of Physicians, Senior Fellow of the Society of Hospital Medicine, and a Castle Connolly Top Doctor.

Jeffrey Marinshaw, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Jeffrey Marinshaw, MD, is an Instructor in Medicine in the Division of Hospital Medicine. He works on a variety of inpatient services including general hospital medicine, the teaching (medicine firm) service, renal transplant, nocturnist, ED hospitalist, oncology, and BMT. His medical education interests include learning theory, bedside teaching, and curriculum design for both medical students and residents. Dr. Marinshaw's clinical interests include general inpatient medicine, infectious diseases, and palliative and end of life care. He serves on the EMR Committee within the division.

Hannah Markova, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Hannah Markova joined the Division of Hospital as an Instructor in Medicine in June 2024. She was born and raised here in St. Louis, Missouri. She went on to attend the University of Cincinnati after receiving a scholarship to play Division I tennis. She graduated summa cum laude with university honors in 2016 with a major in biology and a minor in chemistry. Dr. Markova received the Helen Weinberger Prize, awarded to the top three graduating seniors in Phi Beta Kappa by GPA, as well as the Academic All-American award for her achievements as a student-athlete. After college, she completed a year of research focusing on potential biomarkers for glioblastoma in the Saint Louis University Department of Pharmacology and Physiology. Dr. Markova went on to receive her medical degree in 2021 from the University of Missouri. During her time in medical school, she was inducted into the Alpha Omega Alpha Honor Medical Society and served as the Education Chair for her medical school’s Global Health journal club. Dr. Markova completed her internship and residency at Barnes-Jewish Hospital/Washington University School of Medicine in St. Louis prior to joining the division in 2024. Her clinical interests are general inpatient care with a special interest in infectious disease and quality improvement, as well as the clinical education of medical students and residents.

Nathan Martin, MD
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Nathan Martin, MD, is an Associate Professor of Medicine and Senior Fellow in Hospital Medicine (SFHM) with primary focus and interest in the care of hospitalized medical patients. He completed residency here at WashU/BJH in 2008 and has been on the faculty ever since. He spends the vast majority of his time taking care of patients either independently as a traditional Hospitalist, or while supervising residents and medical students on the Firm service. In addition, he spends time providing medical consultations for other services and attends on the Medicine Procedure service performing various procedures including lumbar punctures and paracentesis. While clinical care is the mainstay of his interest and what he feels is most essential as a Hospitalist, he also co-directs our Medicine Triage Attending (MTA) service. He co-founded the MTA service in July 2020 and remains a leader in ensuring the service continues to be successful. The MTA service triages all medicine patients from the ED, from direct admission locations, as well as from outside hospitals – we always try to ensure the right patient is on the right service at the right time.

Cheryl McDonough, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Cheryl McDonough, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine and attends on a variety of services including the inpatient medicine teaching service and direct care hospitalist service and serves as a medical consultant at the Rehab Institute of St Louis. She is interested in medical education, particularly in modeling effective and empathetic patient and family communication skills. She is a member of the Division of Hospital Medicine Patient Safely and Quality Improvement committee and serves as a BJH Case Management Physician Advisor.

FNU Meena, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. FNU Meena joined the Division of Hospital Medicine as an Instructor in Medicine in September 2024. She was born and raised in Hyderabad, Pakistan, and received her medical education at Liaquat University of Medical and Health Sciences, Jamshoro, Pakistan, which is one of the oldest and top-ranked medical universities in the country. After graduation from medical school in January 2014, she did one year of required training at Liaquat University Hospital and then worked as a medical officer for two years near her hometown before moving to the United States to pursue further training. Dr. Meena received her internal medicine residency training at Bassett Medical Center in Cooperstown, New York. As a resident, she enjoyed teaching medical students and residents. She also participated in the development and implementation of quality improvement (QI) for improving interprofessional workflow in inpatient medicine during her residency training. Dr. Meena’s current areas of interest are general internal medicine with a focus on inpatient care, with a special interest in endocrinology and obesity medicine. She finds great satisfaction in the complexities and nuances of hospital medicine, with a particular passion for high-value care and medical education.

Priya Menon, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Priya Menon, MD, is an Instructor in Medicine in the Division of Hospital Medicine and predominantly works in the oncology and bone marrow transplant service as a hospitalist. She has a special interest in immuno-oncology, targeted therapy, and antibiotic stewardship. She is also motivated in teaching the residents and other learners rotating through oncology and BMT service. While here at WashU, she hopes to continue to work on her research and scholarly activities in the field of oncology. Dr. Menon is a member of the BMT and IDEAS committees.

Yaman Mkhaimer, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Yaman Mkhaimer joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. He was born and raised in Amman, Jordan, where he received his medical degree at the Hashemite University of Jordan in 2016. In 2020, he moved to Minnesota to join the Mayo Clinic Nephrology and Hypertension Department as a research associate to further his interest in clinical research. Shortly after, he joined the University of Missouri Kansas City, where he completed his Internal Medicine residency prior to joining the division in 2024. Dr. Mkhaimer developed a compelling interest in the cardiology and heart failure fields, immersing himself in research studies with a particular focus on quality and outpatient follow-up improvement. He was even provided the opportunity to present several papers at the American College of Cardiology and the American Heart Association conferences. His present academic interests center around general Internal Medicine, with a specific inclination towards acute cardiovascular care, quality improvement initiatives, and employing multidisciplinary approaches to medical treatment.

Alyssa Moller, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Alyssa Moller, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. She attends on a mix of hospitalist direct care, inpatient teaching service, medicine consults, and ED hospitalist. She is involved in several projects on the topic of addiction medicine aimed to enhance hospitalist education of important topics in addiction, improve inpatient Epic order sets for opiate use disorder, and increase implementation of medication assisted therapy for opiate abuse. She also interviews applicants for the IM residency program and serves on committees for hospitalist recruitment and compensation.

Zachary Morgan, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Zachary Morgan, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine. His primary interests are in clinical operations and medical education. He is the Co-Director for Patient Care Operations for the Division of Hospital Medicine and co-chair of the Patient Care Operations Committee. He is a member of the Division of Hospital Medicine Leadership Team as well as the Education Committee. He attends on a variety of direct patient care and teaching services. Dr. Morgan is Key Faculty for the Internal Medicine residency, directing the Hospital Medicine portion of the residency noon conference curriculum and serving as an interviewer and application evaluator. He lectures residents on topics such as VTE prophylaxis, perioperative medicine, and length of stay reduction, and has created faculty development sessions about the use of mini-lectures.

Monalisa Mullick, MD
Associate Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Monalisa Mullick, MD, serves as an Associate Professor of Medicine in the Division of Hospital Medicine within Internal Medicine and Pediatrics. Her primary interests lie in medical education, where she actively engages as a facilitator during intern and resident reports, attends on bedside procedure and teaching services. She has contributed to projects aimed at enhancing inpatient rounding processes. Additionally, her passion includes mentoring residents and students and promoting faculty and learner wellness.

Nathan Neilson, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Nathan Andrew Neilson is an Instructor in Medicine at the Division of Hospital Medicine since June 2024. He graduated magna cum laude from Ohio State University with a biology major and minors in human nutrition and Spanish. Dr. Neilson received his medical degree from the University of Illinois College of Medicine, where he was inducted into the Alpha Omega Alpha Honors Society. He completed his internship and residency at Barnes-Jewish Hospital/Washington University School of Medicine. During residency, he participated in the Global Health Pathway, conducting HIV pre-exposure prophylaxis research in Accra, Ghana. Dr. Neilson actively contributes to LGBTQ+ community outreach and was involved in organizing a Pride festival in Peoria, Illinois.