Gary Leo Zamanigian, DO
Family Medicine Physician · Trenton, MI
Gary Leo Zamanigian, DO is a family medicine physician with a practice address in Trenton, Michigan, and NPI 1174590871, issued on Mar 2, 2006. Check the license (Michigan 5101007457, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gary Leo Zamanigian
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 5101007457 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1640 Fort St, Trenton, MI 48183
- Phone
- (734) 671-6741
- Enumerated
- Mar 2, 2006
- Record last updated
- Jan 31, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (734) 671-1038
- Medicaid ID
- 114871149 MI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 1640 Fort St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gary Leo Zamanigian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101007457Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
20 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Gary Leo Zamanigian among 6,013 family medicine physician records in Michigan
Gary Leo Zamanigian, DO is one of 6,013 family medicine physician records with a practice address in Michigan. 75% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family medicine physician records list a practice address in Trenton
They are 9 of the 495 NPPES records with a practice address in Trenton, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Trenton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alka Aggarwal, M.D.Brownstown Twp, MI 481831023119112
- Michelle Bauer, DOTrenton, MI 481831750463071
- Michael Ducato, MDTrenton, MI 481831265743272
- Jennifer Fretz, D.O.Trenton, MI 481831477531929
- Rodney Gilreath, M.D.Woodhaven, MI 481831831263342
- Dennis McMahon, D. O.Woodhaven, MI 481831902892706
- Anke Robinson, M.D.Trenton, MI 481831093760910
- Mark Sawka, MDWoodhaven, MI 481831609873496
Common questions
What is Gary Leo Zamanigian, DO's NPI number?
Gary Leo Zamanigian, DO's National Provider Identifier (NPI) is 1174590871, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary Leo Zamanigian, DO located?
The NPPES record lists a practice address at 1640 Fort St, Trenton, MI, 48183. Phone: (734) 671-6741. Providers update this record themselves, so call before visiting.
How can I verify Gary Leo Zamanigian, DO's license?
NPPES lists Michigan license number 5101007457, 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 Leo Zamanigian, DO prescribe under Medicare Part D?
In 2024, Gary Leo Zamanigian, DO had 20 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.