Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ian Kowalski, M.D.

Physical Medicine & Rehabilitation Physician in Cincinnati, OH · enumerated 2016.

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

National Provider Identifier

1891157004

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Registry record

Entity type Individual (Type 1)

Name Ian Kowalski

Credential M.D.

Sex Male

Practice address 2139 Auburn Ave Fl 2, Cincinnati, OH, 45219

Phone (513) 585-2000

Enumeration date Mar 26, 2016

Last updated in NPPES Dec 5, 2025

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 35.136860 (OH) 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
0445247	Medicaid	OH	-

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

How do I verify Ian Kowalski's NPI record?

Cross-check NPI 1891157004 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891157004 active?

Yes, as of the latest NPPES snapshot, NPI 1891157004 is active (record last updated 2025-12-05).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-05.