Meet The Doctors

Grunberger Diabetes Institute Meet The Doctors

Meet The Doctors

The Doctors

George Grunberger
MD, F.A.C.P., M.A.C.E.

George Grunberger, received his B.A. (biochemistry) from Columbia College of Columbia University (New York City), M.D. from New York University School of Medicine (New York City), internal medicine training at Case Western Reserve University in Cleveland, Ohio and Endocrinology/Metabolism training in the Diabetes Branch at the National Institutes of Health in Bethesda, Maryland where he then stayed as senior investigator.

Between 1986 and 2002 he established and then directed the Comprehensive Diabetes Programs at both the Detroit Medical Center and Wayne State University School of Medicine. Early in his career, Dr. Grunberger saw the need for a comprehensive diabetes treatment facility where persons with diabetes could receive specialized care and address the many facets of their disease. The Grunberger Diabetes Institute, established in 2002, is the result of his vision.


  • Is the Past President of the American Association of Clinical Endocrinologists (AACE, the largest organization of clinical endocrinologists in the world)
  • Clinical Professor in the Department of Internal Medicine and in the Center for Molecular Medicine and Genetics at the Wayne State University School of Medicine
  • Professor of Internal Medicine at the Oakland University William Beaumont School of Medicine
  • Visiting Professor of Medicine in the First Faculty of Medicine at Charles University, Prague (Czech Republic)
  • Fellow of the American College of Physicians (as of 1989)
  • Fellow of the American College of Endocrinology (as of 2000)
  • Master of the American College of Endocrinology (as of 2020)
  • Past President of the Michigan Chapter of the American Association of Clinical Endocrinologists (2006-2011)
  • Past national AACE Board of Directors member, from 2006 to 2012
  • Elected by his peers for inclusion in the Best Doctors in America® every year since 2001
  • A staff physician at Beaumont Hospital, Royal Oak.
  • A sought after speaker on all aspects of diabetes nationally and internationally
  • An author of 180+ scientific and medical articles in peer-reviewed literature, in addition to reviews and book chapters
  • An investigator on well over 100 clinical research studies
Anjana Myneni

Dr. Anjana Myneni received her medical degree from the Kempegowda Institute of Medical Science/Bangalore University, India. She performed her training in internal medicine at Lankenau Hospital/Thomas Jefferson University Program in Philadelphia, PA and at Johns Hopkins University/Sinai Hospital Progam in Baltimore, MD.

Her fellowship in endocrinology and metabolism was at Michigan State University in East Lansing, MI. Before joining GDI she was a staff member in the Division of Endocrinology, Allegheny General Hospital/Drexel University in Pittsburgh, PA.


  • Dr. Myneni is board certified in internal medicine, endocrinology and metabolism
  • She is a Fellow of the American of Endocrinology
  • She is a certified densitometrist by the International Society of Clinical Densitometry (ISCD)
  • She has presented at many scientific meetings and has published peer review articles in the endocrinology and metabolism field
  • Dr. Myneni specializes in managing disorders of the thyroid, parathyroid, pituitary, adrenal glands, lipids, osteoporosis and diabetes mellitus
  • She is a staff physician at St. Joseph Mercy Oakland Hospital
Donna Hamill

“I have a passion for helping people with endocrine disorders,” said Donna. “I see patients in the outpatient setting and provide medical management and patient education regarding diabetes, thyroid disease, osteoporosis, and other endocrine conditions.”
Donna’s favorite part of her job is the one-on-one interaction with patients. She said after getting to know her patients and understanding their views on health, it helps to make her care patient specific. Doctorate of Nursing Practice degree from Wayne State University. Her specialty is advanced Diabetes management.


  • Donna Hamill, Nurse Practitioner, attended Wayne State University and completed a second-degree BSN program in 2010.
  • She then earned her doctor of nursing practice from Wayne State University in 2014 when she was named a Jonas Veteran’s Healthcare Scholar
  • Donna also holds a BS in Marketing and Economics from Illinois State University
Amy Tobin
DO, F.A.C.E.

“It has been a journey of honor, pride, and joy to have had the opportunity to care for so many patients with chronic diseases such as diabetes, thyroid dysfunction or cancer, hypertension, lipid abnormalities, obesity, osteoporosis, and other less common endocrine disorders. To see improvements in their daily lives when empowered by the tools we give them as medical providers warms my heart” says Dr. Tobin.

She continues to engage in up to date therapy and technological advances in diabetes care, which have revolutionized the management of diabetes all over the world. Healthy living through individualized dietary and physical activity is also a passion in Dr. Tobin’s personal and patients’ lives.


  • Dr. Amy Lum Tobin completed her undergraduate degree in Medical Technology at Oakland University then post-graduate education at Michigan State University College of Osteopathic Medicine
  • Her medical training started with an Internal Medicine Residency at Botsford General Hospital (Beaumont Farmington) followed by Endocrinology Fellowship at Bi-County Community Hospital in Warren, MI
  • She has been in private practice/adult general endocrinology since 1996 and proudly participated in medical training of medical students, residents, and endocrine fellows through 2019

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