Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Corliss Ann Elizabeth Best, MD

Q: What is the NPI number for Corliss Best?

The National Provider Identifier (NPI) for Corliss Best is 1821720129, a Type 1 (individual) record in the CMS NPPES registry.

Otolaryngology/Facial Plastic Surgery Physician in Orange, CA · enumerated 2022.

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

National Provider Identifier

1821720129

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Registry record

Entity type Individual (Type 1)

Name Dr. Corliss Ann Elizabeth Best

Credential MD

Sex Female

Practice address 101 the City Drive S, Ucl Medical Center, Orange, CA, 92868

Phone (714) 456-5591

Fax (714) 456-5747

Enumeration date Jun 27, 2022

Last updated in NPPES Nov 1, 2022

Taxonomy & licenses

207YX0905X Otolaryngology/Facial Plastic Surgery Physician Allopathic & Osteopathic Physicians · License A18125 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Corliss Best practice?

The practice location on file with NPPES is in Orange, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Corliss Best?

The National Provider Identifier (NPI) for Corliss Best is 1821720129, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-01.