Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katarzyna Grazyna Wilczewska, PSY.D.

Psychologist in Tyler, TX · enumerated 2024 · practices at Christus Trinity Clinic.

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

National Provider Identifier

1679300867

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Katarzyna Grazyna Wilczewska

Credential PSY.D.

Sex Female

Practice address 520 Douglas Blvd, Tyler, TX, 75702

Phone (903) 606-1721

Fax (903) 592-5618

Enumeration date Sep 19, 2024

Last updated in NPPES Jun 18, 2026

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 40462 (TX) Primary

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers Secondary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

Where does Katarzyna Wilczewska practice?

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

What is the NPI number for Katarzyna Wilczewska?

The National Provider Identifier (NPI) for Katarzyna Wilczewska is 1679300867, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-18.