Richard Yamasaki, PA
NPI 1689615841 · Medical Physician Assistant · Fullerton, CA
Richard Yamasaki, PA is a Medical Physician Assistant provider in Fullerton, CA (NPI 1689615841).
Provider details
- NPI number
- 1689615841
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- PA15237 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-09
- Last updated
- 2008-04-03
Frequently asked questions
- What is Richard Yamasaki's NPI number?
- Richard Yamasaki's National Provider Identifier (NPI) is 1689615841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Yamasaki's specialty?
- Richard Yamasaki is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Richard Yamasaki located?
- Richard Yamasaki's practice location on file with NPPES is 101 E Valencia Mesa, Fullerton, CA 92835.
- What is Richard Yamasaki's phone number?
- The practice phone number listed in the NPPES registry for Richard Yamasaki is (714) 992-3965.
- Is Richard Yamasaki's NPI active?
- Yes — Richard Yamasaki's NPI (1689615841) is active in the NPPES registry as of the last update on 2008-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.