Gary Hammer is an Endocrinology/Metabolic physician affiliated with University of Michigan. OpenAlex indexes 298 publications with 18,496 citations (h-index 66); ClinicalTrials.gov lists 1 registered study matched to this name. By OpenAlex citation count, this profile ranks in the top 10% of Endocrinology, Diabetes & Metabolism profiles in the findmyKOL directory.
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex, matched via ORCID.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
1500 E Medical Center Dr
Ann Arbor, MI 481095000
Telephone
734-936-4000Provider last certified this registry record 2 Oct 2025.
Clinical trials
- IMC-A12 With Mitotane vs Mitotane Alone in Recurrent, Metastatic, or Primary ACC That Cannot Be Removed by Surgery
Sponsor: National Cancer Institute (NCI)
Registered studies on ClinicalTrials.gov where the overall official or a site investigator name-matches this physician, confirmed against known institution/geography. Latest few shown; the full list is part of the full profile.
Industry payments
3 companies reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- Neurocrine Biosciences, Inc.Program year20241 payment
- Neurocrine BioSciences, Inc.Program year20237 payments
- Neurocrine Biosciences, Inc.Program year20225 payments
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Sensory organs
100%Corticosteroid100%Hydrocortisone100%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
NIH funding
4 NIH research awards on record, funded 1999–2026 per NIH RePORTER. The latest:
Awards in the NIH RePORTER records where a principal investigator name matches this physician at an organization in their practice state. Latest award years shown; each row links to the project record on RePORTER.
Similar KOLs
Other experts from the same institution or the same specialty.
Moshe Talpaz, MD
University of Michigan
William Herman, MD
University of Michigan
Max Wicha, MD
University of Michigan
Dinesh Khanna, MD
University of Michigan
A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”