A to Z Profiles Directory

Dr. Caitlin O’Brien is an assistant professor of anesthesiology and critical care medicine at the Johns...

Dr. Anne Marie Lennon is the Director of the Johns Hopkins Division of Gastroenterology and Hepatology and a...

Maureen O'Donnell, M.D., is a breast surgeon with the Sullivan Breast Center at Sibley Memorial Hospital and...

Kevin O’Malley is a Hospitalist at the Johns Hopkins Hospital and faculty at the Johns Hopkins University...

Dr. Pooja O’Neil, M.D., M.B.A., is a pediatric anesthesiologist at Johns Hopkins Children’s Center...

Dr. O'Rourke is an assistant professor in the Department of Medicine at the Johns Hopkins University School...

Matthew O'Sullivan, M.D., Ph.D. is an instructor of ophthalmology, vitreoretinal specialist and surgeon at...

As Assistant Professor of Neurology, Dr. Oakley sees patients with a variety of general pediatric neurological...

Samantha Ober, M.D., is an Internal Medicine physician and has been working as a primary care physician in...

Vincent J. Obias, M.D., is a fellowship-trained colorectal surgeon and chief of Johns Hopkins colorectal surgery...

Dr. Odeniyide is an Assistant Professor in the Division of Pediatric Oncology. Her research focuses on RAS-...

Dr. Tamara Oei is a diagnostic radiologist with an expertise in body imaging and more than 10 years of private...

S. Michelle Ogunwole, MD is an Assistant Professor of Medicine at the Johns Hopkins University School of Medicine...

Dr. Esther Oh is an Associate Professor of Medicine, Psychiatry and Behavioral Sciences and Pathology at the...

Dr. Sun Jung “Sunny” Oh is a gastroenterologist who treats a variety of gastrointestinal disorders...