NPPES file of Aug 9, 2026

Gary Lee Tamez, DO

Family Medicine Physician · Bay City, MI

Gary Lee Tamez, DO is a family medicine physician with a practice address in Bay City, Michigan, and NPI 1265422356, issued on Oct 28, 2005. Check the license (Michigan 5101008687, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265422356
Name
Gary Lee Tamez
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
5101008687 MI
Self-reported in NPPES; status is on the state search
Practice location
3884 Monitor RD, Bay City, MI 48706
Phone
(989) 671-2000
Enumerated
Oct 28, 2005
Record last updated
Apr 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(989) 671-4000
Medicaid ID
1265422356 MI
Medicare enrollment
Enrolled (PECOS I20080318000590); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3884 Monitor RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Caitlin Brosky, DDSDentist1104669183
  2. Miranda BrownFamily Nurse Practitioner1194477182
  3. Lisa CameroDental Hygienist1497132104
  4. Megan Cokley, FNPFamily Nurse Practitioner1225857329
  5. Marissa Frosheiser, DMDGeneral Practice Dentistry1861239303
  6. Theresa Guinther-Mulders, DOPediatrics Physician1326206020

Verify Gary Lee Tamez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101008687
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Great Lakes Bay Health CentersBay City, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gary Lee Tamez among 6,013 family medicine physician records in Michigan

Gary Lee Tamez, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1983 · median 2008 among the 3,493 with a school on file
  • Record last updated2021 · 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).

37 family medicine physician records list a practice address in Bay City

They are 37 of the 2,380 NPPES records with a practice address in Bay City, and 6,013 family medicine physician records in Michigan.

The 8 family medicine physician records with the nearest ZIP codes

  1. James Campau, D.O.Bay City, MI 487061932147758
  2. Janet Guisinger, M.D.Bay City, MI 487061295773208
  3. David Jordahl, MDBay City, MI 487061376552489
  4. Charles Kerr, D.O.Bay City, MI 487061568495406
  5. Ronald Koehler, DOBay City, MI 487061104857978
  6. Paul Neal, DOBay City, MI 487061861463879
  7. Linda Samborn, DOBay City, MI 487061750314035
  8. Tessa Schisler, D.O.Bay City, MI 487061407881543

Common questions

What is Gary Lee Tamez, DO's NPI number?

Gary Lee Tamez, DO's National Provider Identifier (NPI) is 1265422356, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gary Lee Tamez, DO located?

The NPPES record lists a practice address at 3884 Monitor RD, Bay City, MI, 48706. Phone: (989) 671-2000. Providers update this record themselves, so call before visiting.

How can I verify Gary Lee Tamez, DO's license?

NPPES lists Michigan license number 5101008687, 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.

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.