Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Ronald Kowalczyk, D.O.

Emergency Medicine Physician in Farmington Hills, MI · enumerated 2011.

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

National Provider Identifier

1285929414

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Registry record

Entity type Individual (Type 1)

Name James Ronald Kowalczyk

Credential D.O.

Sex Male

Practice address 28050 Grand River Ave, Farmington Hills, MI, 48336

Phone (248) 471-8000

Enumeration date Jun 16, 2011

Last updated in NPPES Jun 16, 2011

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 5101019141 (MI) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

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Frequently asked questions

What is the NPI number for James Kowalczyk?

The National Provider Identifier (NPI) for James Kowalczyk is 1285929414, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Kowalczyk practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-16.