Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ian W Marks, PAC

Physician Assistant in Glendale, CA · enumerated 2007.

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

National Provider Identifier

1760506869

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Registry record

Entity type Individual (Type 1)

Name Ian W Marks

Credential PAC

Sex Male

Practice address 544 N Glendale Ave, Glendale, CA, 91206

Phone (818) 241-4331

Enumeration date Mar 16, 2007

Last updated in NPPES Jul 22, 2014

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0110001200 (VA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA51543 (CA) Primary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0110001200 (VA) Secondary

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 Ian Marks?

Ian Marks 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 2014-07-22.