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

Ernesto G Ong, MD

Individual provider Pediatrics Physician · NPI 1114009677

Ernesto G Ong, MD is a Pediatrics Physician in Hacienda Heights, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1850 S Azusa Ave
Hacienda Heights, CA 91745-6813
Phone: (626) 964-6012
Fax: (626) 964-3941
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence A52272 (CA)

Record details

NPI number1114009677
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 20, 2006
Last updated in NPPESMarch 13, 2008

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