Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Patrick Pak, PA

Physician Assistant in Corona, CA · enumerated 2007.

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

National Provider Identifier

1861611386

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Registry record

Entity type Individual (Type 1)

Name Mr. Patrick Pak

Credential PA

Sex Male

Practice address 1307 W 6th St, Suite 113, Corona, CA, 92882

Phone (951) 278-8910

Fax (951) 278-9895

Enumeration date Apr 24, 2007

Last updated in NPPES Dec 31, 2013

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA 15188 (CA) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

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

What specialty is Patrick Pak?

Patrick Pak 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-31.