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

Dr. Daniel O’Connor is an associate professor of neuroscience at the Johns Hopkins University School of...

Dr. Tamara O’Connor is an Associate Professor in the Department of Biological Chemistry at the Johns Hopkins...

Kevin O’Malley is a Hospitalist in the Division of Hospital Medicine at the Johns Hopkins Hospital and an...

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

Dr. Brian O’Rourke is a Professor of Medicine at the Heart and Vascular Institute. He uses an integrative...

Dr. Paul O'Rourke is an Associate Professor of Medicine and serves as Assistant Dean for Medical Student...

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...

Dr. Oberdoerffer is an Associate Professor of Radiation Oncology and Molecular Radiation Sciences at the...

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

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

Dr. Georg Oeltzschner is an Assistant Professor in the Johns Hopkins Medicine Department of Radiology and...

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

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

Byoung Chol Oh is an instructor of plastic and reconstructive surgery at Johns Hopkins School of Medicine...

Dr. Kenichi Oishi is a Professor in the Department of Radiology and Radiological Science and the Department...

Opeoluwa Oluwole, M.D., joined CIMS as an hospitalist in 2012. Dr. Oluwole is a member of American College...

Dr. Maria M. Oliva-Hemker is the Stermer Family Professor of Pediatric Inflammatory Bowel Disease and...

Eric Oliver, M.D. joined the Division of Allergy and Clinical Immunology as an instructor of medicine in...

Dr. Eniola Oluyemi graduated from Northwestern University's Feinberg School of Medicine, and completed her...

Dr. Omron is an assistant professor in the Department of Emergency Medicine.

After completing residency in...

Dr. Onyike is a specialist in neuropsychiatry. He focuses on the diagnosis and care of neurodegenerative...

Dr. Ana-Maria Orbai is an Assistant Professor of Medicine in the Division of Rheumatology at the Johns...

Dr. Jonathan Orens is a professor of medicine at the Johns Hopkins University School of Medicine. His areas...

Shannon Osborne, M.D., is a clinical instructor in the Johns Hopkins Department of Gynecology and Obstetrics...

Dr. William O. Osburn is an assistant professor of medicine at the Johns Hopkins University School of...

Dr. Greg Osgood is an assistant professor of orthopaedic surgery at the Johns Hopkins School of Medicine and...

Dr. Oshima is a hepatobiliary and gastrointestinal pathologist and the director of the Johns Hopkins Liver...

Dr. Michael Osnard is an Assistant Professor of Medicine at the Johns Hopkins School of Medicine. His areas...

Dr. Ostrander joined the faculty in 2003. Previously, he was an elementary school teacher, school...

Dr. Kimberly L. Ostrow is an assistant professor in the Department of Neurology at Johns Hopkins University...

Valerie Osula, M.D., M.P.H, is an assistant professor in the department of Emergency Medicine and works...

Shane Ottmann, M.D., is an assistant professor of surgery at Johns Hopkins, working primarily with the...

Dr. Ozen is an Assistant Professor of Pediatrics at the Johns Hopkins University School of Medicine. Her...