Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Chao, MD

Individual provider Emergency Medicine Physician · NPI 1841348661

William Chao, MD is an Emergency Medicine Physician in Baldwin Park, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1011 Baldwin Park Blvd
Baldwin Park, CA 91706-5806
Phone: (626) 851-1011
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G78538 (CA)

Record details

NPI number1841348661
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 8, 2007
Last updated in NPPESNovember 30, 2021
Mailing address1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806

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