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John J Merendino, M.D.

Photo of Dr. John J Merendino, M.D.

Specializes in: Adults (18+ years)


Expertise: Diabetes, Endocrinology and Metabolism, High Cholesterol, Insulin Pump Therapy, Thyroid Diseases


John Merendino, MD
Appointment Phone: 301-230-0300

10215 Fernwood Road
Suite 405
Bethesda, MD 20817 map
Fax: 301-230-0314


Dr. John Merendino is a board-certified endocrinologist in Bethesda, MD. He is co-author of the New York Times bestseller, The Best Life Guide to Managing Diabetes and Pre-Diabetes. Dr. Merendino runs a busy private practice and does consulting for both private industry and government. He is an Assistant Clinical Professor at the George Washington University School of Medicine and is Chief of the Endocrine Section at Suburban Hospital, Johns Hopkins Medicine. more

Departments / Divisions

  • Medicine at Suburban Hospital



  • MD, Yale School of Medicine (1985)


  • Harvard University / Internal Medicine (1988)


  • National Institutes of Health-Credentialing Services Section / Endocrinology (1991)

Board Certifications

  • American Board of Internal Medicine / Endocrinology/Diabetes/Metabolism (1991)
  • American Board of Internal Medicine / Internal Medicine (1988)
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