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Division Chiefs - Internal Medicine

Internal Medicine Division Chiefs

David B.K. Golden, M.D., Allergy

Dr. Golden graduated from McGill University School of Medicine, where he also completed his residency in internal medicine. He pursued a fellowship training program in allergy-clinical immunology at Johns Hopkins University, where he began a career investigator pathway in insect sting allergy. He has published many original research manuscripts as well as review articles and book chapters.

Dr. Golden presents research seminars and continuing education programs nationally and internationally. He also maintains an active program of research studies on anaphylaxis, insect allergy and venom immunotherapy, and is currently Associate Professor of Medicine at Johns Hopkins University. He established a private group practice in allergy-clinical immunology in Baltimore. Dr. Golden has made a major commitment to education in his activities with the American Academy of Allergy Asthma and Immunology, in published reviews and lectures, and with an allergy-immunology curriculum for medical residents in teaching community hospitals in Baltimore. Dr. Golden is the Chief of the Allergy Division of Internal Medicine at MedStar Franklin Square Medical Center, and is the Director of Allergy in the Department of Medicine at Sinai Hospital in Baltimore.

Steven J. Mason, M.D., Cardiology

Dr. Mason earned his medical education at Harvard Medical School, followed by a residency in internal medicine at Beth Israel Hospital in Boston. After training in cardiology at Johns Hopkins University, Dr. Mason served as an attending at Yale-New Haven Hospital in Connecticut. Dr. Mason has been on staff at MedStar Franklin Square since 1986, and is an Assistant Professor of Medicine at the Johns Hopkins University School of Medicine.

Stephen R. Selinger, M.D., F.C.C.P., Critical Care

Dr. Selinger graduated from the Johns Hopkins University School of Medicine and Johns Hopkins Hospital Pulmonary & Critical Care Fellowship. Dr. Selinger serves as Vice President of Pulmonary & Critical Care Associates of Baltimore. He is also an Assistant Professor of Medicine Johns Hopkins Hospital and Clinical Assistant Professor of Medicine at the University of Maryland School of Medicine. Dr. Selinger has been Director of Critical Care at MedStar Franklin Square since 1995. He is the recipient of Excellence in Teaching awards from MedStar Good Samaritan Hospital, and Distinguished Attending of the Year awards from MedStar Franklin Square's residency program. He also serves on multiple hospital committees.

Marie Bellantoni, M.D., Endocrinology

After earning her medical degree at Johns Hopkins University in Baltimore, Dr. Bellantoni did her residency training at the Case Western Reserve Hospitals. Dr. Bellantoni completed a fellowship in endocrinology and metabolism at Yale University, after which she spent several years in private clinical practice. Dr. Bellantoni accepted the position of Chief of Endocrinology in 1995. She has a special interest in metabolic disease of bone and is a member of the Maryland State Task Force on Osteoporosis.

Mark P. Diamond, M.D., Gastroenterology

Dr. Diamond began his medical career at Ohio State Medical School, followed by a residency in internal medicine at the University Hospital of Cleveland. Dr. Diamond moved to Baltimore to pursue a fellowship in gastroenterology at Johns Hopkins University, after which he joined the staff at MedStar Franklin Square Medical Center as Chief of Gastroenterology in 1982. Dr. Diamond remains an Instructor in Medicine at Johns Hopkins University where he maintains teaching responsibilities.

Marcos A. Wolff, M.D., Infectious Diseases

After receiving his medical degree from the Universidade Federal do Parana in Brazil, Dr. Wolff relocated to Baltimore, where he entered the internal medicine residency program at MedStar Franklin Square. After completing a fellowship in infectious disease at the University of Florida, Dr. Wolff returned to join the staff at MedStar Franklin Square. Dr Wolff serves as a teaching attending on the general medicine service, and became Section Chief of Infectious Diseases in 2001.

William Waterfield, M.D., Medical Oncology

Dr. Waterfield graduated from Temple University School of Medicine in 1972. After internal medicine residency, he completed medical oncology fellowship at MD Anderson Hospital in Houston and Hershey Medical Center in Hershey, PA. He is currently chief of Medical Oncology in The Harry and Jeanette Weinberg Cancer Institute here at MedStar Franklin Square Medical Center. His main interests are in lung cancer, GI malignancies and melanoma. He is principal investigator on numerous clinical trials in the Cancer Institute. He is also board certified in hospice and palliative care.

John E. Anderson M.D., Nephrology

Dr. Anderson received his medical school training at the Johns Hopkins University School of Medicine, followed by residency training in internal medicine at Johns Hopkins Bayview Medical Center. After serving in the USPHS, he completed his fellowship in nephrology at the University of Kentucky Medical Center. Dr. Anderson has been on the staff at MedStar Franklin Square since 1986, and became Chief of Nephrology in 2004. He is an Assistant Professor of Medicine at the Johns Hopkins University School of Medicine. His research interests include chronic kidney disease outcomes and daily home hemodialysis.

Martin J. Sheridan, M.D., F.A.C.P., F.C.C.P., Pulmonary Medicine

After completing his medical education at the University of Maryland, Dr. Sheridan trained in internal medicine at Sinai Hospital in Baltimore, where he also served a year as chief resident. Dr. Sheridan completed a fellowship in pulmonary medicine at the Johns Hopkins University School of Medicine as well as a postdoctoral fellowship in Environmental Health Science at the Johns Hopkins School of Public Health and Hygiene. Dr Sheridan took on the role of Medical Director of Respiratory Care Services at MedStar Franklin Square Medical Center in 1983, and has been Section Chief of Pulmonary Medicine since 1998. Dr. Sheridan is a Clinical Assistant Professor in the Department of Medicine at the University of Maryland and Assistant in Medicine at the Johns Hopkins School of Medicine.

Mark Reischer, M.D., Rehabilitation Medicine

After graduating from Wayne State University School of Medicine, Dr. Reischer completed training in internal medicine at the Mount Sinai Hospital in New York City and Sinai Hospital of Detroit. He then completed a second residency in physical medicine and rehabilitation at the Albert Einstein College of Medicine in the Bronx. He is boarded in internal medicine, rehabilitation medicine, electrodiagnostic medicine and pain. Dr. Reischer has been at MedStar Franklin Square Medical Center since 1981, and has special interests in neuromuscular and pain diagnosis and rehabilitation.