Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Alexandria Czaja, APRN

Nurse Practitioner in Tinley Park, IL · enumerated 2021.

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

National Provider Identifier

1073183364

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Registry record

Entity type Individual (Type 1)

Name Catherine Alexandria Czaja

Credential APRN

Sex Female

Practice address 17495 La Grange Rd, Tinley Park, IL, 60487

Phone (708) 388-5500

Fax (630) 432-6604

Enumeration date Jun 29, 2021

Last updated in NPPES Jan 2, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11013668 (FL) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11013668 (FL) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209-033123 (IL) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Catherine Czaja's NPI record?

Cross-check NPI 1073183364 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1073183364 active?

Yes, as of the latest NPPES snapshot, NPI 1073183364 is active (record last updated 2026-01-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-02.