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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Andrew Yuh Chao, D.O.

Family Medicine Physician in Downey, CA · enumerated 2006 · practices at Pih Health Physicians.

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

National Provider Identifier

1780621755

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Registry record

Entity type Individual (Type 1)
Name Dr. Andrew Yuh Chao
Credential D.O.
Sex Male
Practice address Downey, CA, 90241
Phone (562) 904-4411
Fax (562) 904-5353
Enumeration date May 31, 2006
Last updated in NPPES Feb 21, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License R2A51 (MO) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A4859 (CA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
241216829 Medicaid MO -

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.

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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 Andrew Chao?
Andrew Chao is registered in NPPES with the primary taxonomy of Family Medicine Physician. 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 2018-02-21.