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

Individual provider Internal Medicine Physician · NPI 1699735191

Dr. David Masao Hirota, MD is an Internal Medicine Physician in Ontario, California. Works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2006
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

3401 Centre Lake Dr Ste 512
Ontario, CA 91761-1201
Phone: (909) 566-0445
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2699 Atlantic Ave, Long Beach, CA 90806-2710 — (562) 426-3333

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A065105 (CA)

Record details

NPI number1699735191
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2006
Last updated in NPPESOctober 24, 2019
Mailing address2699 Atlantic Ave, Long Beach, CA 90806-2710

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