NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Anton Thies Breunig, PA-C

Physician Assistant in La Crosse, WI · enumerated 2019.

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

National Provider Identifier

1861057846

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Anton Thies Breunig
Credential PA-C
Sex Male
Practice address 800 West Ave S, La Crosse, WI, 54601
Phone (608) 785-0940
Enumeration date May 6, 2019
Last updated in NPPES May 27, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 4733 (WI) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 4733 (WI) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Anton Breunig?
The National Provider Identifier (NPI) for Anton Breunig is 1861057846, a Type 1 (individual) record in the CMS NPPES registry.
Where does Anton Breunig practice?
The practice location on file with NPPES is in La Crosse, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-27.