Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathryn Holmstrom-Baker, PA-C

Physician Assistant in Traverse City, MI · enumerated 2008.

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

National Provider Identifier

1689824948

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Registry record

Entity type Individual (Type 1)

Name Kathryn Holmstrom-Baker

Credential PA-C

Sex Female

Practice address 4100 Park Forest Dr Ste 208, Traverse City, MI, 49684

Phone (231) 935-5710

Fax (231) 935-9045

Enumeration date Sep 23, 2008

Last updated in NPPES Apr 22, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601005399 (MI) Primary

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.

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Frequently asked questions

What is the NPI number for Kathryn Holmstrom-Baker?

The National Provider Identifier (NPI) for Kathryn Holmstrom-Baker is 1689824948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kathryn Holmstrom-Baker practice?

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

Other providers at this practice address

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Alexander Weick Gastroenterology Physician · Traverse City, MI NPI 1942542444 Heather Carroll Gastroenterology Physician · Traverse City, MI NPI 1902246689 Rachael Carter Physician Assistant · Traverse City, MI NPI 1568961217 Christy Kemner Physician Assistant · Traverse City, MI NPI 1649968413

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-22.