Mark V. Williams, MD, FACP, MHM
Division Chief, Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Mark V. Williams, MD, FACP, MHM began his collaboration with the Division’s experienced leadership team in October 2021 to build one of the premier academic divisions in the nation. A Past-President of the Society of Hospital Medicine, Founding Editor of the Journal of Hospital Medicine and one of the first 10 Masters in Hospital Medicine, Mark brings his expertise in quality improvement, teamwork, and care transitions to this prestigious institution and talented group.
Timothy Ackerman, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Timothy Ackerman joined the Division of Hospital Medicine at Washington University in July 2024 as an Instructor in Medicine. He graduated magna cum laude with departmental honors from Rutgers University in 2008 with a Bachelor of Arts in Cellular Biology and Neuroscience. Prior to pursuing medicine, he worked in the medical diagnostics industry, focusing on the development of rapid in vitro diagnostic kits for infectious diseases. After enrolling in the study of medicine at St. George’s University, he graduated in 2017. Following his residency, Dr. Ackerman joined the faculty at Louisiana State University Health Shreveport School of Medicine as a Clinical Instructor in the Department of Medicine’s Division of Internal Medicine-Pediatrics. He served as the Associate Program Director of the Internal Medicine-Pediatrics Residency Program, leading the Clinical Competency Committee. Additionally, Dr. Ackerman is part of the Division of Pediatric Hospital Medicine in the Department of Pediatrics.
Arjab Adhikari, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Arjab Adhikari joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. He was born and raised in Kathmandu, the capital city of Nepal. He did his medical schooling at KIST Medical College in Nepal. Following his graduation, Dr. Adhikari pursued residency training at Ascension Saint Francis Hospital in Evanston, Illinois, where he distinguished himself by earning two academic excellence awards and the prestigious Walter Bissell Award in 2023 for his outstanding contributions to hematology/oncology and cancer patient care. Prior to his current appointment as a Clinical Instructor, Dr. Adhikari served as a PGY-4 Chief Resident. Additionally, he served as a Clinical Instructor at Rosalind Franklin University Medical School.
Marwa Ahmed, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Marwa M. Ahmed joined the Department of Medicine as an Instructor in Medicine in the Division of Hospital Medicine in July 2024. She was born and raised in Sudan and received her medical degree from the Faculty of Medicine, University of Khartoum, in 2012. She gained diverse clinical experience working in major health institutes across different subspecialties in internal medicine. She also worked as a senior house officer in emergency medicine in both her native country and in Ireland. Her role as a BLS/ACLS instructor at the “Soba Education, Training, and Examination Center” in Sudan allowed her to impart life-saving skills to healthcare professionals while nurturing future instructors. Dr. Ahmed’s commitment to advancing medical knowledge prompted her to join the Tele-Geriatric Research Fellowship at Michigan State University shortly after arriving in the United States in 2020. There, she actively participated in research discussions and presented findings at geriatric conferences. Dr. Ahmed completed her internship and residency at St. Luke’s Hospital in Chesterfield, Missouri, in June 2024.
Yazan Al Jabiri, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Yazan Al Jabiri, MD, is an Instructor in Medicine in the Division of Hospital Medicine. He obtained his medical degree from Jordan University of Science and Technology and completed his internal medicine residency at NYC Health and Hospitals/ Lincoln. Dr. Al Jabiri is highly interested in research with focus on Meta-analysis/Systematic reviews. Currently he has several active projects in gastroenterology and hepatology mainly in non-alcoholic steatohepatitis treatment and inflammatory bowel disease. He also has an interest in epidemiology and using large data bases for outcome research to reveal opportunities for possible interventions to improve the care and clinical outcomes of patients.
Mohammad Aldiabat, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Mohammad Aldiabat, MD, is an Instructor in Medicine in the Department of Medicine, Division of Hospital Medicine. He obtained his medical degree from Jordan University of Science and Technology and completed his residency in internal medicine at NYC Health and Hospitals/Lincoln. Dr. Adiabat’s focus on geriatric inpatient care led him to pursue a Geriatrics Medicine Fellowship at NYU Langone, where he provided compassionate care to elderly patients hospitalized with various geriatric syndromes.
Currently, he is pursuing a master’s degree in epidemiology and biostatistics at Harvard School of Public Health, with research interests centered around gastroenterology and inflammatory bowel disease epidemiology and outcomes research in the elderly population.
Dr. Aldiabat’s primary goal is to investigate the epidemiology of gastroenterology and inflammatory bowel disease in the elderly population, with the ultimate aim of advancing their care and enhancing their quality of life.
Saleh Alhalaseh, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Saleh Yazeed Salah Alhalaseh, MD, joined the Division of Hospital Medicine as an Instructor in Medicine in June 2024. Originally from Jordan, Dr. Alhalaseh graduated from Mu’tah University, Faculty of Medicine, Jordan, where he earned his medical degree in 2019. Dr. Alhalaseh completed his residency at St. Barnabas Hospital in the Bronx, where he developed a passion for working with underserved populations. Throughout his training, he actively engaged in various projects, such as quality improvement projects focused on enhancing patient care outcomes, including initiatives related to syncope and orthostatic vital signs, as well as glycemic control in critically ill patients. In his role as an Instructor in Medicine, Dr. Alhalaseh is committed to shaping future healthcare professionals. He employs innovative teaching methods, fostering a supportive environment for student learning and skill development.
Florence Almiron-Torralba, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Florence Michelle Almiron-Torralba, MD, is an Instructor in Medicine in the Division of Hospital Medicine. She works primarily on the Progressive Pulmonary Care Unit (PPCU), Hospital Medicine, and Bone Marrow Transplant Service as a Hospitalist. She provides direct patient care on these services. She has interests in teaching and mentorship of medical students and residents on their clinical rotation on the Progressive Pulmonary Care Unit, Hospitalist and Bone Marrow Transplant Service.
Amrullah Alsatli, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Amrullah Alsatli, MD, is an Instructor in Medicine in the Department of Medicine, Division of Hospital Medicine. He obtained his Bachelor Degree in Medicine and Surgery from Jordan University of Science and Technology. Dr. Alsatli had his first Internal Medicine Residency in Qatar. In 2015 he joined the Internal Medicine Residency Program at Good Samaritan Hospital in Cincinnati, Ohio. He has been working as a Hospitalist and has been board certified since 2018. He joined the Division of Hospital Medicine at Washington University in St. Louis in 2023.
Dr. Alsatli is interested in clinical research, patient care, and medical education. He is currently enrolled in the Master of Science in Clinical and Translational Research at Georgetown University.
Andrew Alter, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Andrew Alter joined the Division of Hospital Medicine as an Instructor in Medicine in June 2024. Dr. Alter was born and raised in Houston, Texas, and he lived there until he went to college. He completed his undergraduate degree double majoring in biology and political science at Emory University in Atlanta, Georgia, where he was inducted into the Phi Beta Kappa honor society. He then moved back to Houston to complete medical school at Baylor College of Medicine. He earned the Distinction in Foundational Sciences and Student Senate Mentorship Award while at Baylor. He graduated medical school in May 2021, and then he moved to St. Louis with his wife to complete his residency in internal medicine at Barnes-Jewish Hospital/Washington University in St. Louis. During his time in medical school and residency, Dr. Alter worked as a tutor for pre-clinical and clinical medical students. Dr. Alter loves working at Barnes Hospital, where he can continue to learn with medical students, residents, fellows, and other faculty.
Sheun Aluko, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Sheun Aluko, MD, currently serves as an Instructor in Medicine for the Division of Hospital Medicine. Dr. Aluko completed a degree in biomedical engineering at Washington University and then completed medical school at Stanford University School of Medicine. He continued to hone his engineering skills by completing a master’s in biomedical informatics while at Stanford, with the goal of fusing his medical and computer science knowledge to develop innovative healthcare software solutions for patients and providers. Dr. Aluko then completed a medicine residency at Washington University in St. Louis/Barnes Jewish Hospital, after which he continued as an instructor of medicine. Throughout his internal medicine practice, Dr. Aluko has demonstrated exceptional skill in diagnosing and treating a wide range of conditions, emphasizing a holistic approach to patient care. His expertise spans managing chronic illnesses, addressing multisystem disease conditions, and promoting health and wellness to prevent disease. Dr. Aluko’s practice is rooted in a thorough understanding of internal medicine’s broad scope, from primary care to the intricacies of various subspecialties.
Jordan Atkins, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Jordan Atkins, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine and works primarily on the bone marrow transplant service as a hospitalist. He has an interest in teaching and mentorship of students and residents on the oncology service and aids in recruitment of internal medicine resident candidates through the IM program as an interviewer. Dr. Atkins has contributed to multiple clinical research publications within the realm of oncology, which aids in the management of the complex medical problems of solid organ and leukemia patients. He serves on the hospitalist BMT/Oncology and the patient care operations committees, with a primary focus on patient throughput, triage and QI for oncology patients.
Crystal Atwood, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Crystal Atwood, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine at Washington University School of Medicine. With extensive experience across multiple clinical service lines within the Division of Hospital Medicine, Dr. Atwood is recognized for her expertise in managing complex inpatient care. She has been actively involved in numerous initiatives aimed at enhancing care transitions, patient throughput, and diagnostic testing processes. In addition to clinical duties, Dr. Atwood is the Director of Point-of-Care Ultrasound (POCUS) for the Division of Hospital Medicine and serves as Core Faculty for the Internal Medicine Residency Program. Her commitment to education is reflected in her leadership roles in the POCUS credentialing program for hospitalists and the creation of a POCUS elective for residents. She is also actively involved in leadership roles within the Society of Hospital Medicine (SHM), having served as President, Treasurer, and Secretary of the Saint Louis Chapter for the past 8 years.
Tarek Bakain, MD
Instructor in Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Dr. Tarek Bakain joined the Division of Hospital Medicine as an Instructor in Medicine in July 2024. He was born and raised in Amman, Jordan, and pursued his medical degree at the Jordan University of Science and Technology, graduating with university honors in 2018. His passion for medicine extended beyond academics; during his medical school years, he was actively involved with the International Federation of Medical Students Associations (IFMSA), organizing numerous campaigns and events aimed at improving health care for underserved populations and refugees in Jordan. Dr. Bakain completed his residency in Internal Medicine at MedStar Georgetown University-Washington Hospital Center in 2024 before joining the Division of Hospital Medicine. Throughout his residency, Dr. Bakain engaged in several quality improvement projects and research within the hospital medicine and gastroenterology fields and was able to provide care to a variety of populations and age groups while keeping up his passion for helping underserved communities. He enjoys teaching and working with both medical students and residents. Dr. Bakain is particularly interested in general internal medicine, focusing on inpatient care, with a keen interest in gastroenterology.
Faris Bakeer, MD
Assistant Professor of Medicine
- Phone: 314-362-1700
- Fax: 314-362-9878
Faris Bakeer, MD, is an Assistant Professor of Medicine in the Division of Hospital Medicine, and he attends on a variety of services including oncology, BMT, medicine consults, and general hospitalist rotations. He has an interest in education and is involved in teaching residents and medical students on hospitalist rotations and on medicine firm. He additionally has an interest in quality improvement projects as well as Infectious Disease and has previously published research involving the development and validation of a risk prediction score for enterococcal endocarditis. He also serves on the recruitment committee for the Division of Hospital Medicine and assists in recruitment for the Internal Medicine residency program as an interviewer.