Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tammie Horvath, PA

Physician Assistant in Bay City, MI · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619347432

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Registry record

Entity type Individual (Type 1)

Name Tammie Horvath

Credential PA

Sex Female

Practice address 3884 Monitor Rd, Bay City, MI, 48706

Phone (989) 671-2000

Fax (989) 671-4000

Enumeration date Oct 6, 2015

Last updated in NPPES Oct 6, 2015

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601007583 (MI) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Tammie Horvath?

The National Provider Identifier (NPI) for Tammie Horvath is 1619347432, a Type 1 (individual) record in the CMS NPPES registry.

Where does Tammie Horvath practice?

The practice location on file with NPPES is in Bay City, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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John Martin Physician Assistant · Bay City, MI NPI 1386632164 Gary Tamez Family Medicine Physician · Bay City, MI NPI 1265422356 Theresa Guinther-Mulders Pediatrics Physician · Bay City, MI NPI 1326206020 Kyle Walkington General Practice Dentistry · Bay City, MI NPI 1235459579 Robert Kelch Family Nurse Practitioner · Bay City, MI NPI 1275832172 Jennifer Kreh Dental Hygienist · Bay City, MI NPI 1811374812 Carrie Isom Dental Hygienist · Bay City, MI NPI 1164809158 Lisa Camero Dental Hygienist · Bay City, MI NPI 1497132104

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-06.