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Michael Mannstadt, MD

  • Chief of the Endocrine Unit
  • Associate Professor in Medicine, Harvard Medical School


Accepting New Patients





Centers & Specialties

Cancer Center

Clinical Interests
  • Diseases of the parathyroid gland
  • Genetic bone diseases
  • Fibrous dysplasia
  • McCune-Albright Syndrome
  • Osteoporosis
  • Hypoparathyroidism
  • Hyperparathyroidism
Medical Education
  • MD, Friedrich Schiller University
  • Residency, Ludwig Maximilians University|Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital
Board Certifications
  • Endocrinology
  • Diabetes & Metabolism
  • Boston: Massachusetts General Hospital
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
  • OSW - Vermont
  • 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


Michael Mannstadt, MD is Chief of the Endocrine Unit at Massachusetts General Hospital and Associate Professor in Medicine, Harvard Medical School, both in Boston.  He is a Board Certified Endocrinologist.

He earned his MD from Jena University in Germany. He completed his residency in Medicine, Fellowship in Endocrinology and Chief Residency in Medicine, all at Massachusetts General Hospital and Harvard Medical School, Boston.

Dr. Mannstadt's clinical interest focuses on disorders of mineral metabolism and bone diseases.  His research concentrates on the basic and translational aspects of parathyroid hormone with a particular interest in hypoparathyroidism. 

Research & Publications

Research Summary

View my most recent research


View my most recent publications at PubMed

News & Events

  • Celebrating research contributions

    The MGH Endocrinology Unit hosted a special reception on Sept. 29 to commemorate a 28-year collaboration with the Chugai Pharmaceutical Co., Ltd, of Japan. Since 1989, 10 scientists from Chugai have come to spend two to three years each as visiting research scientists in the hospital’s endocrinology laboratories.



Endocrine Associates
15 Parkman Street
Boston, MA 02114-3117
Phone 1: 617-726-8720
Phone 2: 617-643-7692
Fax: 617-724-2718

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