Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Homer Vanderkolk, M.D.

Surgery Physician in Traverse City, MI · enumerated 2005.

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

National Provider Identifier

1467444216

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Registry record

Entity type Individual (Type 1)

Name Michael Homer Vanderkolk

Credential M.D.

Sex Male

Practice address 1221 6th St, Suite 306, Traverse City, MI, 49684

Phone (231) 935-2400

Fax (231) 935-2424

Enumeration date Aug 18, 2005

Last updated in NPPES Apr 16, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MV043582 (MI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1558290	Medicaid	MI	-

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 Michael Vanderkolk?

The National Provider Identifier (NPI) for Michael Vanderkolk is 1467444216, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Vanderkolk practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-16.