Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Gregg Johnson Porter, PA-C, MCHS

Physician Assistant in Richland, WA · enumerated 2012.

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

National Provider Identifier

1750634473

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Registry record

Entity type Individual (Type 1)

Name Mr. Gregg Johnson Porter

Credential PA-C, MCHS

Sex Male

Practice address 888 Swift Blvd, Richland, WA, 99352

Phone (509) 946-4611

Enumeration date Oct 18, 2012

Last updated in NPPES Mar 24, 2020

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA60539007 (WA) 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.

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Frequently asked questions

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.

What specialty is Gregg Porter?

Gregg Porter 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-24.