Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William P Simpson, PA-C

Physician Assistant in Brunswick, ME · enumerated 2006.

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

National Provider Identifier

1194789073

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Registry record

Entity type Individual (Type 1)

Name William P Simpson

Credential PA-C

Sex Male

Practice address 430 Bath Rd, Suite 102, Brunswick, ME, 04011

Phone (207) 442-0350

Fax (207) 442-0355

Enumeration date Apr 17, 2006

Last updated in NPPES Oct 9, 2017

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA001285 (ME) Primary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 15-0-1100 (KS) Secondary

Other identifiers

Identifier	Type	State	Issuer
200381060D	Medicaid	KS	-

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

Is NPI 1194789073 active?

Yes, as of the latest NPPES snapshot, NPI 1194789073 is active (record last updated 2017-10-09).

How do I verify William Simpson's NPI record?

Cross-check NPI 1194789073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-09.