Grunberger Diabetes Institute Home

Experience the GDI Difference

Diabetes and Endocrine Management that Exceeds Expectations

Peer selected into Best Doctors in America since 2001

Recognized by the American Diabetes Association (ADA)

Defined by Our Unparalleled Excellence

Our Distinguished Doctors
Dr. George Grunberger

Dr. George Grunberger


Dr. Donna Hamill


Dr. Amy Tobin


How Can We Help?

Diabetes Management

Learn More About Diabetes

Endocrine Management

Learn More About Endocrine Disorders

Weight Management

Learn More About Our Weight Management Program

We Care About You!

At Grunberger Diabetes Institute (GDI) we treat each person with an individualized plan of care. Our doctors and staff understand that overall health is important and are here to help you reach your health goals.

Have any questions? Feel free to contact our team, or schedule today.

Best Diabetes and Endocrine Specialists on Google

Read what our patients have to say about the diabetes and endocrine doctors at Grunberger Diabetes Institute.

  • 5 star review  Dr. Myneni was courteous and respectful of my 91 year old mother. She listened to both of our concerns and answered our questions thoroughly. She provided possible alternative solutions to... Read More Reviews

    thumb Denise Norman

    5 star review  Everyone was very helpful and knowledgeable. Waited less than 5 minutes to enter my exam. room. Dr Grunberger has me in the best ranges with my sugar numbers than anyone... Read More Reviews

    thumb hey gurth

    5 star review  Visited this office for the first time a few days ago. Staff was helpful and friendly. I felt listened too and that my concerns were addressed.

    thumb Belinda Blanchard
  • 5 star review  Excellent team to have on your side when you are maintaining complicated medical conditions. If you become part of the Grunberger team, they'll make sure you have the knowledge and... Read More Reviews

    thumb Glenda Trudell

    5 star review  Dr. Hamill is so personable, informative and helpful. She has improved my life in 3 short months!! I am feeling amazing and my AIC is completely under control. She treats... Read More Reviews

    thumb Theresa Skwara
Location and Hours


Serving Southeastern Michigan and beyond, located in Bloomfield Hills on Woodward Avenue, easily accessible from Interstate-75 off exit 75 and Telegraph Road.


43494 Woodward Ave #208, Bloomfield Twp, MI 48302

Hours of Operation:

Monday – Thursday: 9:00 AM – 5:00 PM

Friday: 9:00 AM – 2:00 PM

Our Exclusive Blog

Diabetes and Endocrine News

Diabetes and Endocrinology and Public Health

Dr. George Grunberger of Grunberger Diabetes Institute had the honor of presenting Friday May 28th to the American Association of Clinical Endocrinology (AACE), which is a professional community of ph…

What to Know About Zegalogue: A new glucagon rescue

Patients whose diabetes treatment includes insulin will experience hypoglycemic episodes, which occur when most people’s blood sugar level is 70 mg/dL or lower. Each person with diabetes may have diff…

How to Diagnose a Thyroid Condition

January is Thyroid Awareness Month, so it is only fitting we release an article with details on how to know when to get checked for a Thyroid condition. With a prevalence of more than 12% of U.S. popu…

Gvoke: Ready-to-Use Glucagon Pen

Low blood sugar, referred to as hypoglycemia, can be a concerning thought for individuals with diabetes. Hypoglycemia is a reality for most people with diabetes as they experience a wide variety of si…

Consider Plant-Based Eating for Diabetes

We have all heard the saying “An apple a day keeps the doctor away”, but what if there was some truth behind this statement? Although an apple a day may not cause a person’s disease state, fruits and …

Experience the GDI Difference

The Grunberger Diabetes Institute (GDI) provides comprehensive patient evaluation and treatment of diabetes and diabetes-related conditions for patients living throughout Southeastern Michigan and beyond.

We also specialize in the diagnosis and treatment of such common endocrine and metabolic conditions as thyroid, pituitary, adrenal and gonadal diseases, osteoporosis, high blood pressure, and abnormal cholesterol. The Institute is unique in uniting sophisticated diabetes management and education with an opportunity to participate in our weight management program, all under one roof with the same team of experienced professionals.