Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Katherine Lijoi, PA-C

Physician Assistant in Glendale, AZ · enumerated 2006.

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

National Provider Identifier

1023178449

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Registry record

Entity type Individual (Type 1)

Name Ms. Katherine Lijoi

Credential PA-C

Sex Female

Practice address 16390 N 59th Ave Ste 200, Glendale, AZ, 85306

Phone (623) 334-4000

Fax (623) 334-4400

Enumeration date Dec 8, 2006

Last updated in NPPES Sep 13, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 3554 (AZ) Primary

Other identifiers

Identifier	Type	State	Issuer
362058	Medicaid	AZ	-

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 Katherine Lijoi?

Katherine Lijoi 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 2024-09-13.