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Bowie Internal Medicine

David L. Siegel, M.D.

Dr. Siegel of Baltimore completed electrical engineering training at Columbia University and went on to graduate from the University of Maryland Medical School in 1979. He completed a residency in internal medicine and a fellowship in gastroenterology jointly at the Baltimore City Hospital and Johns Hopkins Hospital. Dr. Siegel is the chairman of the Greenbelt Endoscopy Center.

Jo Alderman Greenberg, C.R.N.P.

Jo Greenberg, CRNP, is an experienced medical professional who earned a Bachelor of Science in Psychology from Virginia Tech and a Bachelor of Science in Nursing from the Medical College of Virginia. In 1997, she received her Master’s degree in Nursing from The Johns Hopkins University. Her strong interests in preventive care and cardiology led her to Bowie Internal Medicine Associates. Before joining us, Jo served patients in a family practice in Hunt Valley.

James Y. Wang, M.D.

Dr. Wang was born in Silver Spring, Maryland and grew up in Michigan. He attended the University of Michigan where he received a degree in economics. From there he went on to complete medical school in 1996 and an internal medicine residency at the University of Maryland. Having left behind Michigan’s invigorating winters for Maryland’s milder climate, he is very excited to be remaining here as a member of Bowie Internal Medicine Associates. Dr. Wang has a strong interest in preventative medicine, with a particular interest in diabetes and cardiovascular disease.

Lizy Thomas, M.D. 

Dr. Thomas completed her internal medicine residency at Harbor Hospital Center, Baltimore, a major affiliate of the University of Maryland in 1999. Dr. Thomas is board certified in internal medicine, and is a member of The American College of Physicians. Her special interests are women’s health and diabetes. Prior to joining Bowie Internal Medicine, Dr. Thomas worked as an internist in the Washington, D.C. area for 15 years.

Janet M. Beebe, C.R.N.P.

Mrs. Beebe is a native of Washington State. She received her Bachelor’s of Science in Nursing from the University of Washington in Seattle in 1984. Mrs. Beebe is a 1999 graduate of the University of Maryland’s School of Nursing where she obtained a Masters of Science in Adult Primary Care and Mental Health Nursing and is now a C.R.N.P. (certified nurse practitioner) for our practice.

Ritu M. Sachdev, M.D. 

Dr. Sachdev received her medical degree from Maulana Azad Medical College in Delhi University in 1999. She completed her internal medicine residency at Tufts University and her fellowship in gastroenterology at Baylor College of Medicine. Dr. Sachdev joined Bowie Internal Medicine in 2012 as a gastroenterologist. She brings with her a compassionate approach to patient care, and a special focus in women’s health and preventive medicine in gastroenterology.  Dr. Sachdev is board certified in Gastroenterology/Hepatology and Internal Medicine. She is a member of American College of Gastreoenterology and American Gastroenterology Association.

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