Sierra Occupational Services
NPI 1306990015 · Occupational Medicine Physician · Stockton, CA
Sierra Occupational Services is a Occupational Medicine Physician organization in Stockton, CA (NPI 1306990015).
Provider details
- NPI number
- 1306990015
- Entity type
- Organization
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- James Sepiol, Preident(209) 546-7767
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Family Medicine Physician207Q00000X
Allopathic & Osteopathic Physicians
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
Registry dates
- Enumerated
- 2007-01-22
- Last updated
- 2025-09-11
Frequently asked questions
- What is Sierra Occupational Services's NPI number?
- Sierra Occupational Services's National Provider Identifier (NPI) is 1306990015, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sierra Occupational Services?
- Sierra Occupational Services is classified in the NPPES registry as Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sierra Occupational Services located?
- Sierra Occupational Services's practice location on file with NPPES is 1429 W Fremont St, Stockton, CA 95203-2627.
- What is Sierra Occupational Services's phone number?
- The practice phone number listed in the NPPES registry for Sierra Occupational Services is (209) 546-7767.
- Who is the authorized official for Sierra Occupational Services?
- The authorized official listed on Sierra Occupational Services's NPPES record is James Sepiol, Preident. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sierra Occupational Services's NPI active?
- Yes — Sierra Occupational Services's NPI (1306990015) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.