George Grunberger, MD
Endocrinology, Diabetes & Metabolism Physician · Bloomfield Hills, MI
George Grunberger, MD is an endocrinology, diabetes & metabolism physician with a practice address in Bloomfield Hills, Michigan, and NPI 1477558450, issued on Jun 16, 2005. Check the license (Michigan 4301049764, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- George Grunberger
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 4301049764 MI
Self-reported in NPPES; status is on the state search - Practice location
- 43494 Woodward Ave, Bloomfield Hills, MI 48302
- Phone
- (248) 335-7740
- Enumerated
- Jun 16, 2005
- Record last updated
- Oct 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (248) 338-7979
- Medicare enrollment
- Enrolled (PECOS I20100805000039); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1977
- Entity
- Type 1 · individual
Also registered at 43494 Woodward Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda Aman, APRN-BC, C-NPAdult Health Nurse Practitioner1134181787
- Kenneth Chun, MDInternal Medicine Physician1467511808
- Tiffany Huffman, FNP-BCFamily Nurse Practitioner1013535087
- Elizabeth Jakobcic, PA-CPhysician Assistant1639472376
- Anjana Myneni, M.D.Endocrinology, Diabetes & Metabolism Physician1316063274
- Mark Pleatman, M.D.Surgery Physician1427053644
Verify George Grunberger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301049764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,842 Medicare Part D claims for 217 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Metformin Hcl200 claims
- Mounjaro200 claims
- Ozempic82 claims
- Farxiga79 claims
- Jardiance76 claims
- Pioglitazone Hcl68 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $92,754.74
193 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Grunberger Diabetes Medical Center PCBloomfield Hills, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Michigan
There are 270 endocrinology, diabetes & metabolism physician records in Michigan.
Other endocrinology, diabetes & metabolism physician records in Michigan
- Firdhous Alimathunisa Abdul Kather, MDTraverse City, MI1871015560
- Ahmad Abu Limon, MDEast Lansing, MI1881080406
- Dania Abushanab, M.D.Dearborn, MI1376962514
- Ali Achira, M.DDearborn, MI1427345065
- Ghaydaa Adawi, M.DDetroit, MI1699151860
- Aradhana Addepalli, M.DDetroit, MI1235213315
- Alison Affinati, MD, PHDAnn Arbor, MI1871983502
- Naseer Ahmad, M.D.Farmington Hills, MI1063423317
- Saadiah Ahmed, D.O.Saint Clair Shores, MI1649486044
- Nevin Ajluni, M.D.Ann Arbor, MI1407019995
Common questions
What is George Grunberger, MD's NPI number?
George Grunberger, MD's National Provider Identifier (NPI) is 1477558450, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is George Grunberger, MD located?
The NPPES record lists a practice address at 43494 Woodward Ave, Bloomfield Hills, MI, 48302. Phone: (248) 335-7740. Providers update this record themselves, so call before visiting.
How can I verify George Grunberger, MD's license?
NPPES lists Michigan license number 4301049764, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does George Grunberger, MD prescribe under Medicare Part D?
In 2024, George Grunberger, MD had 1,842 Medicare Part D claims for 217 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.