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

Dr. Grant Roger Masaoka, MD

Individual provider Specialist · NPI 1780677120

Dr. Grant Roger Masaoka, MD is a Specialist in Anaheim, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
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

1781 W Romneya Dr Ste E
Anaheim, CA 92801-1818
Phone: (714) 774-0414
Fax: (714) 774-0494
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence G19094 (CA)

Record details

NPI number1780677120
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2005
Last updated in NPPESJuly 13, 2026

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