Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gary Lee Tamez, DO

Individual provider Family Medicine Physician · NPI 1265422356

Gary Lee Tamez, DO is registered under Family Practice in Bay City, Michigan. Qualified in 1983, 43 years ago. Practices with Great Lakes Bay Health Centers, a 85-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
43
Licensed in
MI
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3884 Monitor Rd
Bay City, MI 48706-9298
Phone: (989) 671-2000
Fax: (989) 671-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 5101008687 (MI)

Record details

NPI number1265422356
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 28, 2005
Last updated in NPPESApril 12, 2021
Certification dateApril 12, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Great Lakes Bay Health Centers — 85 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients43
Services billed 171 a service is one billed item, such as a visit, a test or a procedure
Average patient age65

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Great Lakes Bay Health Centers

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 85 clinicians in the practice; 12 are shown here.

Other providers in Bay City