Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joshua Levi Mayfield, PA-C

Physician Assistant in Pomeroy, WA · enumerated 2008.

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

National Provider Identifier

1144475559

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Registry record

Entity type Individual (Type 1)

Name Joshua Levi Mayfield

Credential PA-C

Sex Male

Practice address 66 N 6th St, Pomeroy, WA, 99347

Phone (509) 843-1591

Fax (509) 843-6157

Enumeration date Nov 26, 2008

Last updated in NPPES Jun 9, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA60055375 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
PA60055375	Other	WA	PA LICENSE

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 1144475559 active?

Yes, as of the latest NPPES snapshot, NPI 1144475559 is active (record last updated 2025-06-09).

How do I verify Joshua Mayfield's NPI record?

Cross-check NPI 1144475559 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 2025-06-09.