About Nancy Wei, MD

Dr. Nancy J. Wei is an endocrinologist and also the Medical Director for Clinical Informatics at the Massachusetts General Hospital (MGH). She is also an assistant professor of medicine at Harvard Medical School. She is board certified in Internal Medicine and Endocrinology, Diabetes, and Metabolism, and is a practicing endocrinologist at the MGH Diabetes Center and MGH Chelsea Health Center. She also serves at the Associate Director of the Inpatient Diabetes Management Service.

She earned her M.D. from Harvard Medical School, her M.MSc. from Harvard Medical School, and completed her internship and residency in internal medicine and fellowship in endocrinology, diabetes and metabolism at MGH.

 Dr. Wei became involved with clinical systems and health care information technology in 2014 when she lead the MGH preparation and successful implementation from legacy clinical systems to Epic. She became the MGH Medical Director for Clinical Informatics in 2019, where she leads the optimization, development, implementation, and support of clinical information systems across the hospital.

Departments, Centers, & Programs:




Diabetes Unit
50 Staniford Street
3rd Floor
Boston, MA 02114-2517
Fax: 617-724-8534

Medical Education

  • MD, Harvard Medical School
  • Residency, Massachusetts General Hospital
  • Fellowship, Massachusetts General Hospital

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine
  • Endocrinology, Diabetes & Metabolism, American Board of Internal Medicine

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.


    1. Wei NJ, Grant RW, Nathan DM, Wexler DJ. Effect of Hospital Admission on Glycemic Control One Year after Discharge. Endocr Pract. 2012 Jul-Aug; 18(4):456-63.
    2. Wei NJ, DJ Wexler, DM Nathan, RW Grant. Intensification of diabetes medication and risk for 30 day readmission. Diabetic Medicine. 2013 Feb;30(2):e56-62.
    3. Wei N, H Zheng, DM Nathan. Empirically Establishing Blood Glucose Targets to Achieve HbA1c Goals. Diabetes Care. 2014 Apr; 37(4):1048-51.
    4. Wei NJ, Nathan DM, Wexler DJ. Glycemic Cotnrol After Hospital Discharge in Insulin-Treated Type 2 Diabetes: A Randomized Pilot of Daily Remote Glucose Monitoring. Endocr Pract. 2015 Feb;21(2):115-21.
    5. Wei N, Pan J, Pop-Busui R, Othmna A, Alecu I, Hornemann T, Eichler FS. Altered sphingoid base profiles in type 1 compared to type 2 diabetes. Lipids Health Dis. 2014 Oct 11;13(1):161.
    6. Segre A, Wei N*, DIAGRAM Consortium, MAGIC investigators, Altshuler D, Florez JC. Pathways targeted by anti-diabetes drugs are enriched for multiple genes associated with type 2 diabetes risk. Diabetes. 2015 Apr;64(4):1470-83
    7. Fan W, Zeng H, Wei N, Nathan DM. Estimating HbA1c from timed Self-Monitored Blood Glucose values. Diabetes Res Clin Pract. 2018 Apr 16;141:56-61.
    8. Rubins D, Wright A, Alkasab T, Ledbetter MS, Miller A, Patel R, Wei N, Zuccotti G, Landman A. Importance of clinical decision support system response time monitoring: a case report. J Am Med Inform Assoc. 2019 Aug 2. pii:ocz133.