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

Dr. Roy Masato Hayashi, DMD

Individual provider Endodontics · NPI 1922151638

Dr. Roy Masato Hayashi, DMD is an Endodontics in Foothill Ranch, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
DMD — Doctor of Dental Medicine
A dentist. Identical training and licensing to a DDS.

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Practice location Address checks out

27462 Portola Pkwy Ste 200
Foothill Ranch, CA 92610-2815
Phone: (949) 273-8575
Fax: (949) 273-8577
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endodontics (primary) Taxonomy 1223E0200X · Licence 53528 (CA)

Record details

NPI number1922151638
Entity typeIndividual (Type 1)
GenderMale
Credentials DMD
Sole proprietorYes
NPI enumeratedJanuary 18, 2007
Last updated in NPPESJuly 8, 2007

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