Gary Peppin, M.D.
Internal Medicine Physician · Ann Arbor, MI
Gary Peppin, M.D. is an internal medicine physician with a practice address in Ann Arbor, Michigan, and NPI 1588676399, issued on Aug 12, 2006. Check the license (Michigan 4301057654, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gary Peppin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301057654 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4350 Jackson RD, Ann Arbor, MI 48103
- Phone
- (734) 761-2581
- Enumerated
- Aug 12, 2006
- Record last updated
- Dec 14, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (734) 995-0425
- Medicaid ID
- 1588676399 MI
- Medicare enrollment
- Enrolled (PECOS I20040929001065); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 4350 Jackson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gary Peppin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301057654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average internal medicine physician in 2024
6,501 Medicare Part D claims for 518 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 161 claims were for opioids.
Most prescribed
- Atorvastatin Calcium506 claims
- Lisinopril301 claims
- Amlodipine Besylate299 claims
- Levothyroxine Sodium256 claims
- Rosuvastatin Calcium233 claims
- Losartan Potassium200 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.
Bills Medicare through one group practice
- Iha Health Services CorporationAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary Peppin among 5,735 internal medicine physician records in Michigan
Gary Peppin, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1991 · median 2006 among the 3,564 with a school on file
- Record last updated2016 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
479 internal medicine physician records list a practice address in Ann Arbor
They are 479 of the 15,616 NPPES records with a practice address in Ann Arbor, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Ann Arbor → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Laura Babe, M.D.Ann Arbor, MI 481031912986043
- James Bonnette, MDAnn Arbor, MI 481031629186689
- Lisa Feldstein, MDAnn Arbor, MI 481031578560454
- Kristin McFadden, D.O.Ann Arbor, MI 481031629009915
- Thomas O'Brien, M.D.Ann Arbor, MI 481031033188545
- Thomas O'Connor, MDAnn Arbor, MI 481031619066859
- Elisa Ostafin, MDAnn Arbor, MI 481031770672917
- Marlis Pacifico, M.D.Ann Arbor, MI 481031003924416
Common questions
What is Gary Peppin, M.D.'s NPI number?
Gary Peppin, M.D.'s National Provider Identifier (NPI) is 1588676399, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary Peppin, M.D. located?
The NPPES record lists a practice address at 4350 Jackson RD, Ann Arbor, MI, 48103. Phone: (734) 761-2581. Providers update this record themselves, so call before visiting.
How can I verify Gary Peppin, M.D.'s license?
NPPES lists Michigan license number 4301057654, 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 Gary Peppin, M.D. prescribe under Medicare Part D?
In 2024, Gary Peppin, M.D. had 6,501 Medicare Part D claims for 518 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.