Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marek J. Rozek, PA-C

Physician Assistant in Waterloo, IA · enumerated 2006.

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

National Provider Identifier

1386676971

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Registry record

Entity type Individual (Type 1)

Name Marek J. Rozek

Credential PA-C

Sex Male

Practice address 2710 Saint Francis Dr, Suite 110, Waterloo, IA, 50702

Phone (391) 272-5000

Fax (319) 272-6775

Enumeration date Jul 6, 2006

Last updated in NPPES Jul 16, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 01652 (IA) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Marek Rozek?

Marek Rozek is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-16.