Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Shay Seitz, PA-C

Physician Assistant in Seal Beach, CA · enumerated 2006.

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

National Provider Identifier

1477620227

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Registry record

Entity type Individual (Type 1)

Name Mr. Shay Seitz

Credential PA-C

Sex Male

Practice address 2929 Westminster Ave Unit 4027, Seal Beach, CA, 90740

Phone (714) 642-6561

Fax (714) 642-6561

Enumeration date Nov 29, 2006

Last updated in NPPES Dec 5, 2024

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA16043 (CA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA16043 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
1477620227	Other	CA	NPI

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 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 Shay Seitz?

Shay Seitz 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-05.