Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Tammie Horvath, PA

Individual provider Physician Assistant · NPI 1619347432

Tammie Horvath, PA is a Physician Assistant in Bay City, Michigan. Qualified in 2015, 11 years ago. Practices with Mymichigan Medical Group, a 178-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
11
Licensed in
MI
In the registry since
2015
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

3884 Monitor Rd
Bay City, MI 48706-9298 Not confirmed with CMS for 11 years — call before visiting
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

Physician Assistant (primary) Taxonomy 363A00000X · Licence 5601007583 (MI)

Record details

NPI number1619347432
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedOctober 6, 2015
Last updated in NPPESOctober 6, 2015

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Mymichigan Medical Group — 178 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients23
Services billed 25 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mymichigan Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 178 clinicians in the practice; 12 are shown here.

Other providers in Bay City