Susan Thys-Jacobs, MD is a board certified internist and endocrinologist located in New York. She graduated from Vassar College in Chemistry and then received her medical training from both Georgetown Medical School of Medicine, and subsequently Mount Sinai School of Medicine. She later completed a fellowship n Endocrinology and Metabolism at Presbyterian Hospital, College of Physicians & Surgeons, Columbia University.

She was the recipient of the Endocrine Fellows Foundation Grant award in 1996.
She was the Principal Investigator of the National Institute of Health (NIDDK;
NIMH and OWHR awared) R01 DK57869-01 grant. She served on the Calcium
Information Advisory Board as well as the TUMS Advisory Board.

She has served as journal reviewer for many medical journals including the
Journal of Clinical Endocrinology & Metabolism; Headache; American Journal of
Obstetrics & Gynecology and JAMA.

Dr. Thys-Jacobs was the Clinical Director of the Medical Bone Unit at Roosevelt Hospital and is currently in private practice in New York. She is a senior attending physician at St. Luke’s Roosevelt Hospital in New York, Assistant Professor of Clinical Medicine at Columbia University, and College of Physicians & Surgeons at Columbia Presbyterian Medical Center.

Dr. Thys-Jacobs has appeared on such television programs as Good Morning America and national networks like CNN and Fox. Articles about Dr. Thys-Jacobs’ research have appeared in such national publications as The New York Times, The Wall Street Journal as well as the Westchester Business Journal.

She is the Executive Vice President and Scientific Advisor to Premcal.

Medical Publications:

  • New England Journal of Medicine
  • Journal of Clinical Endocrinology & Metabolism Steroids
  • Journal of the American College of Nutrition


Her patents include:

US Patent 4,946,679       US Patent 6,034,075
US Patent 5,354,743       US Patent 6,228,849
US Patent 5,443,850