Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Patricia Pei-Chi Liao

Pediatric Critical Care Medicine Physician in Orange, CA · enumerated 2007.

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

National Provider Identifier

1972792877

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Registry record

Entity type Individual (Type 1)

Name Patricia Pei-Chi Liao

Sex Female

Practice address 505 S Main St, Orange, CA, 92868

Phone (714) 532-8620

Enumeration date Oct 17, 2007

Last updated in NPPES Jun 3, 2009

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A85514 (CA) Secondary

2080P0203X Pediatric Critical Care Medicine Physician Allopathic & Osteopathic Physicians · License A85514 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1972792877 active?

Yes, as of the latest NPPES snapshot, NPI 1972792877 is active (record last updated 2009-06-03).

How do I verify Patricia Liao's NPI record?

Cross-check NPI 1972792877 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-03.