Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan W Clark, PA-C

Physician Assistant in Mount Vernon, WA · enumerated 2006.

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

National Provider Identifier

1538196134

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Registry record

Entity type Individual (Type 1)

Name Alan W Clark

Credential PA-C

Sex Male

Practice address 1401 S Laventure Rd, Mount Vernon, WA, 98274

Phone (360) 424-2400

Fax (360) 424-2418

Enumeration date Jun 27, 2006

Last updated in NPPES Aug 14, 2013

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10004220 (WA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10004220 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
0164819	Other	WA	L&I
263660	Other	WA	LABOR & INDUSTRIES
8406258	Medicaid	WA	-

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.

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Frequently asked questions

What specialty is Alan Clark?

Alan Clark is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Kaarsten Lang Orthopaedic Surgery Physician · Mount Vernon, WA NPI 1588662472 Richard Gerlach Physician Assistant · Mount Vernon, WA NPI 1629076591 Timothy Messmer Podiatrist · Mount Vernon, WA NPI 1477552701 Kenneth Oates Orthopaedic Surgery Physician · Mount Vernon, WA NPI 1962401208 Brett Nelson Physical Therapist · Mount Vernon, WA NPI 1114926466 Gary Clancey Orthopaedic Surgery Physician · Mount Vernon, WA NPI 1740251792 Jimmy Cui Pain Medicine (Physical Medicine & Rehabilitation) Physician · Mount Vernon, WA NPI 1720057342 Curtis Rodin Orthopaedic Surgery Physician · Mount Vernon, WA NPI 1659330876

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-14.