San Marcos Medical Group
NPI 1689717613 · Occupational Medicine Clinic/Center · Fontana, CA
San Marcos Medical Group is a Occupational Medicine Clinic/Center organization in Fontana, CA (NPI 1689717613).
Provider details
- NPI number
- 1689717613
- Entity type
- Organization
- Primary specialty
- Occupational Medicine Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Azer Rezk, Administrator(909) 376-7715
- License
- A040591 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- Metropolitan Industrial Medical Clinic
Registry dates
- Enumerated
- 2007-02-15
- Last updated
- 2026-06-01
- Certified
- 2026-06-01
Frequently asked questions
- What is San Marcos Medical Group's NPI number?
- San Marcos Medical Group's National Provider Identifier (NPI) is 1689717613, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is San Marcos Medical Group?
- San Marcos Medical Group is classified in the NPPES registry as Occupational Medicine Clinic/Center (Ambulatory Health Care Facilities).
- Where is San Marcos Medical Group located?
- San Marcos Medical Group's practice location on file with NPPES is 10444 Liveoak Ave., Fontana, CA 92337-7219.
- What is San Marcos Medical Group's phone number?
- The practice phone number listed in the NPPES registry for San Marcos Medical Group is (909) 770-8293.
- Who is the authorized official for San Marcos Medical Group?
- The authorized official listed on San Marcos Medical Group's NPPES record is Azer Rezk, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is San Marcos Medical Group's NPI active?
- Yes — San Marcos Medical Group's NPI (1689717613) is active in the NPPES registry as of the last update on 2026-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.