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



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
Patient Gateway
Yes, learn more
Insurances Accepted
  • Aetna Health Inc.
  • 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
  • Cigna (PAL #'s)
  • 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
  • MassHealth
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • 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
Patient Age Group

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Mitchell S. Rein, MD., is currently the Chief Medical Officer and Sr. V.P. of Medical Affairs at North Shore Medical Center. Prior to becoming C.M.O., he was the Chair for the Dept. of Ob/Gyn and is currently a member of the Dept. of Ob/Gyn at MGH where he practices infertility and assisted reproductive technologies and gynecology as a part of the MGH/North Shore Ob/Gyn practice. He is an Assoc. Prof. 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, 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.

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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

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Mass General OB/GYN at Mass General/North Shore Center
104 Endicott Street
Suite 304
Danvers MA, 01923-3623
Phone 1: 978-882-6767
Fax: 978-882-6775
Vincent Reproductive Medicine & IVF
55 Fruit Street
Yawkey Center for Outpatient Care
Boston MA, 02114-2696
Phone 1: 617-726-6942

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