Meet the Doctors
Dr. Frank R. Crantz, M.D. Dr Crantz is a native of Detroit, Michigan. He completed his
undergraduate degree at the University of Michigan in Ann Arbor.
He then spent two years at Cambridge University in Cambridge,
England, where he received his Masters Degree. Dr Crantz received
his medical degree from Johns Hopkins University School of
Medicine in Baltimore, Maryland. He completed his internship
and residency in Medicine at The New York Hospital, Cornell
University Medical College in New York City. From 1978-1981
he was a Research Fellow in Endocrinology at Harvard Medical
School in Boston, Massachusetts. He completed his Endocrine
fellowship at the Brigham and Women’s Hospital in Boston. |
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Dr. S. Mark Tanen, M.D., FRCP(C), FACE, LLC Dr. Tanen was born in New Haven, Connecticut in 1959. He was
raised in Toronto, Canada where he completed his medical training.
After a Fellowship at the National Institutes of Health in
Bethesda, MD he joined Endocrine Associates in 1989. |
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Dr. Harvey A Rubenstein M.D., F.A.C.P., F.A.C.E. Dr. Rubenstein's passion for endocrinology started as a 3rd year medical student when he did an externship with the internationally known David H.P. Streeten, M.D. and published a scientific paper on the effects of epinephrine on renal function. His interest in endocrinology continued through his internship and medical residency years at Columbia University in New York City, leading to research and clinical fellowship training in endocrinology, metabolism, and diabetes at Columbia-Presbyterian Medical Center. He worked with the internationally known thyroidologist, Sidney Werner, M.D., editor of the well known textbook, "The Thyroid." His published research includes the development of the radioimmunoassay for the measurement of triiodothyronine (T3) and refinement of the radioimmunoassy for the measurement of TSH, at the National Institutes of Health. He has been practicing endocrinology, metabolism, and diabetes in McLean since 1973 where he has been active in various community affairs, medical politics, American Diabetes Association with ultimately becoming president of the Washington, D.C. chapter, teaching as an Associate Clinical Professor of Medicine at Georgetown University Medical School, and has appeared on local and national television. He has received multiple awards and honors from his undergraduate university, medical school, the American Diabetes Association, and the American Medical Association, in addition to being elected to fellowship of the American College of Physicians and the American College of Endocrinology. He has published several scientific papers in well-known medical journals, has been a reviewer of many national endocrine clinical practice guidelines, and has written the endocrine chapter in an internationally circulated medical textbook.
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