About Mitch Rein, MD

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.

Clinical Interests:



Danvers: The Mass General/North Shore Center for Outpatient Care

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

View location, directions and parking information for Mass General/North Shore Center for Outpatient Care

Boston: Massachusetts General Hospital

Vincent Reproductive Medicine & IVF
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-726-6942

View location, directions and parking information for Mass General

Medical Education

  • MD, Duke University School of Medicine
  • Residency, Brigham and Women's Hospital
  • Fellowship, Brigham and Women's Hospital

American Board Certifications

  • Reproductive Endo. & Infertility, American Board of Obstetrics and Gynecology
  • Obstetrics & Gynecology, American Board of Obstetrics and Gynecology
  • Obstetrics & Gynecology, American Board of Obstetrics and Gynecology

Accepted Insurance Plans

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


  • 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