Barbara Onumah, MD, is a leading endocrinologist in the greater Annapolis region. With an extensive background in teaching — as faculty at Medstar Washington Hospital Center Endocrine Training Program and as assistant professor at Georgetown University Hospital — she brings a high level of skill and leadership to the team. Dr. Onumah is also widely published. With an interest in clinical research, particularly in the area of diabetes, she works hard to bring today’s most advanced treatments and technologies to AAMC. She’s also a member of the Endocrine Society and American Diabetes Association, were she’s able to influence decisions that affect the field of endocrinology as a whole. Dr. Onumah practices general endocrinology, specializing in insulin resistance and diabetes. She collaborates with primary care and other referring physicians on comprehensive and integrated treatment for patients with diabetes and other endocrine disorders.
Effective January 2, 2026, masks are expected to be worn by all staff, patients, and visitors in all Luminis Health clinical locations.
We encourage Maryland residents to use CareConnectNow virtual urgent care for non-emergency needs, and reserve visits to the Emergency Department for severe or life-threatening symptoms. Thank you for your patience as we continue to support our teams and care for our communities.