Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Leon Gauthier, PA-C

Physician Assistant in Herrin, IL · enumerated 2006 · practices at Southern Illinois Dermatology, PC.

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

National Provider Identifier

1033145172

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Registry record

Entity type Individual (Type 1)

Name Mr. Leon Gauthier

Credential PA-C

Sex Male

Practice address 220 N Park Ave, Suite 2, Herrin, IL, 62948

Phone (618) 942-3344

Fax (618) 942-5045

Enumeration date Jun 23, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085000934 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
371359450	Other	IL	FEDERAL EMPLOYER ID NUMBE
441379	Other	IL	HEALTHLINK HMO/PPO PROV #
CB3700	Other	IL	RAILROAD MEDICARE GROUP
L84852	Other	IL	UMWA PROVIDER NUMBER
970023073	Other	IL	RAILROAD PROVIDER NUMBER

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 Leon Gauthier's NPI record?

Cross-check NPI 1033145172 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1033145172 active?

Yes, as of the latest NPPES snapshot, NPI 1033145172 is active (record last updated 2007-07-09).

Other providers at this practice address

Browse all →

Ted Van Acker Dermatology Physician · Herrin, IL NPI 1720025562 Southern Illinois Dermatology, PC Dermatology Physician · Herrin, IL NPI 1306870233 Gerri Dyer Nurse Practitioner · Herrin, IL NPI 1952328486 Derek Kenneaster Dermatology Physician · Herrin, IL NPI 1457372724 Shanda Swagler Family Nurse Practitioner · Herrin, IL NPI 1750526810 Natalie Spiller Physician Assistant · Herrin, IL NPI 1942550272

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.