NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Tom Willim, PA-C Pllc

Allergy Physician in Chandler, AZ · enumerated 2023 · authorized official Thomas Willim, Owner.

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

National Provider Identifier

1043098783

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Tom Willim, PA-C Pllc
Practice address 2425 S Stearman Dr Ste 210, Chandler, AZ, 85286
Enumeration date Sep 14, 2023
Last updated in NPPES Nov 30, 2023

Taxonomy & classification

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Thomas Willim
Title Owner

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

Who is the authorized official for Tom Willim, PA-C Pllc?
NPPES lists Thomas Willim (Owner) as the authorized official for this organization.
What is the NPI number for Tom Willim, PA-C Pllc?
The NPI for Tom Willim, PA-C Pllc is 1043098783, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-30.