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

Tammy M Chen

Individual provider Physician Assistant · NPI 1285347377

Tammy M Chen is a Physician Assistant in Diamond Bar, California. Practices as a sole proprietor. Registered with an NPI since 2023.

In the registry since
2023
Specialties on file
2
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

888 Brea Canyon Rd
Diamond Bar, CA 91789-3059
Phone: (909) 594-3382
Fax: (626) 667-7633
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X
Registered Dietitian Taxonomy 133V00000X

Record details

NPI number1285347377
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedJanuary 4, 2023
Last updated in NPPESApril 15, 2026
Certification dateApril 15, 2026
Mailing address3535 Philadelphia St, Chino, CA 91710-2089

Other providers in Diamond Bar