Photo of Mitchell (Mitch) S. Rein, MD

Mitchell (Mitch) S. Rein, MD

  • Chief Medical Officer/Sr. V.P. Medical Affairs NSMC
  • Associate Gynecology & Obstetrician, Dept of Ob/Gyn, MGH
  • Chairman, MGH/North Shore Quality Committee


Accepting New Patients

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Obstetrics & Gynecology

Clinical Interests
  • Infertility - female
  • Infertility - male
  • Fibroids
  • Abnormal uterine bleeding
  • Menopause
Medical Education
  • MD, Duke University School of Medicine
  • Residency, Brigham and Women's Hospital
  • Fellowship, Brigham and Women's Hospital
Board Certifications
  • Obstetrics & Gynecology
  • Reproductive Endo. & Infertility
  • Boston: Massachusetts General Hospital
  • Danvers: The Mass General/North Shore Center for Outpatient Care
Existing Patients
Patient Gateway
Insurances Accepted
  • Aetna Health Inc.
  • AllWays Health (NHP) - ACD
  • AllWays Health (NHP) - PBO
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Maine Community Health Options (MCHO)
  • MassHealth
  • Medicare
  • Medicare - ACD
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • Private Health Care Systems (PHCS)
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
  • Well Sense Pediatrics

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Patient Age Group
Provider Gender


Mitchell S. Rein, MD, is currently the Chief Medical Officer and Senior VP of Medical Affairs at North Shore Medical Center. Prior to becoming CMO, he was the Chair for the Department of Ob/Gyn and is currently a member of the Department of Ob/Gyn at Mass General where he practices infertility and assisted reproductive technologies and gynecology as a part of the Mass General/North Shore Ob/Gyn practice. He is an Associate Professor in Obstetrics, Gynecology and Reproductive Biology at Harvard Medical School and has published extensively on the topics of uterine fibroids, infertility and quality improvement.

Dr. Rein is a fellow in the American College of Obstetrics and Gynecology, Division of Reproductive Endocrinology. He is also a member of the American Society of Reproductive Technologies, the American College of Physician Executives, the Obstetrical Society of Boston, the New England Obstetrical Society and the Mass Medical Society.

Dr. Rein received his medical degree from Duke University School of Medicine. He completed a residency specializing in obstetrics and gynecology and a fellowship in reproductive endocrinology and infertility at Brigham and Women's Hospital.

Research & Publications

Research Summary
  • Quality Improvement / Patient Safety
  • Infertility Clinical Trials
  • Pathogenesis of Uterine Leiomyota

Rein, M.S., Friedman, A.J., Heffner, L. Decreased prolactin secretion by explant cultures of fibroids from women treated with a gonadotropin releasing hormone agonist., J. Clin. Endocrinol. Metab. (1990) 70:1554-1558Rein, M.S., Friedman, A.J., Barbieri, R.L., Pavelka, K., Fletcher, J.A., Morton, C.C. Cytogenetic abnormalities in uterine leiomyomata. Obstet. Gynecol. (1991) 77: 923-926

Rein, M.S., Barbieri, R., Friedman, A. Progesterone: A critical role in the pathogenesis of uterine myomas. Am. J. Obstet. Gynecol. (1995) 172:14-18

L. Riley MD*, M. Appollon, MD, S. Haider MD MPH, S. Chan-Flynn CMN, MPH* A. Cohen, J. Ecker MD, M. Rein MD***, E. Liberman MD DrPh. J. Perinat.- (2003-06); 23 (4): 272-277


Mass General OB/GYN at Mass General/North Shore Center
104 Endicott Street
Suite 304
Danvers, MA 01923-3623
Phone: 978-882-6767
Fax: 978-882-6775
Vincent Reproductive Medicine & IVF
55 Fruit Street
Yawkey Center for Outpatient Care
Boston, MA 02114-2696
Phone: 617-726-6942

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