Health Service Alliance
NPI 1336858943 · Psychologist · Rancho Cucamonga, CA
Enrolled with Medicare as Part a Provider - Federally Qualified Health Center (fqhc) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Health Service Alliance is a Psychologist organization in Rancho Cucamonga, CA (NPI 1336858943).
Provider details
- NPI number
- 1336858943
- Entity type
- Organization
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Jeffrey Cox, Cfo(909) 464-9675
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
Other names (DBA / former)
- Doing business as
- Alta Loma Community Health Center
Registry dates
- Enumerated
- 2022-11-22
- Last updated
- 2022-11-22
- Certified
- 2022-11-22
Frequently asked questions
- What is Health Service Alliance's NPI number?
- Health Service Alliance's National Provider Identifier (NPI) is 1336858943, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Health Service Alliance?
- Health Service Alliance is classified in the NPPES registry as Psychologist (Behavioral Health & Social Service Providers).
- Where is Health Service Alliance located?
- Health Service Alliance's practice location on file with NPPES is 9089 Base Line Rd Ste 200, Rancho Cucamonga, CA 91730-1295.
- What is Health Service Alliance's phone number?
- The practice phone number listed in the NPPES registry for Health Service Alliance is (909) 980-3567.
- Does Health Service Alliance accept Medicare?
- Health Service Alliance 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 Health Service Alliance?
- The authorized official listed on Health Service Alliance's NPPES record is Jeffrey Cox, Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Health Service Alliance's NPI active?
- Yes — Health Service Alliance's NPI (1336858943) is active in the NPPES registry as of the last update on 2022-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.