First Health Clinic
NPI 1659520666 · Point of Service · San Jose, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
First Health Clinic is a Point of Service organization in San Jose, CA (NPI 1659520666).
Provider details
- NPI number
- 1659520666
- Entity type
- Organization
- Primary specialty
- Point of ServiceManaged Care Organizations
- Organization subpart
- No
- Authorized official
- Hai Nguyen, President/Owner(408) 929-5505
- License
- A88085 (CA)
Specialties & taxonomies
Managed Care Organizations
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-09-15
- Last updated
- 2008-09-15
Frequently asked questions
- What is First Health Clinic's NPI number?
- First Health Clinic's National Provider Identifier (NPI) is 1659520666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is First Health Clinic?
- First Health Clinic is classified in the NPPES registry as Point of Service (Managed Care Organizations).
- Where is First Health Clinic located?
- First Health Clinic's practice location on file with NPPES is 459 S Capitol Ave Ste 4, San Jose, CA 95127-3025.
- What is First Health Clinic's phone number?
- The practice phone number listed in the NPPES registry for First Health Clinic is (408) 929-5505.
- Does First Health Clinic accept Medicare?
- First Health Clinic is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for First Health Clinic?
- The authorized official listed on First Health Clinic's NPPES record is Hai Nguyen, President/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is First Health Clinic's NPI active?
- Yes — First Health Clinic's NPI (1659520666) is active in the NPPES registry as of the last update on 2008-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.