SIERRA OCCUPATIONAL SERVICES
NPI 1306990015
Preventive Medicine - Occupational Medicine in Stockton, CA

Q: What is Sierra Occupational Services's NPI number?

The NPI number for Sierra Occupational Services is 1306990015. It was assigned to this organization in the NPPES registry on January 22, 2007.

Q: What is Sierra Occupational Services's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Active since January 22, 2007

1429 W FREMONT ST, STOCKTON, CA 95203(209) 546-7767(209) 546-7785 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

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About Sierra Occupational Services NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SIERRA OCCUPATIONAL SERVICES (NPI 1306990015) is a healthcare organization registered as an occupational medicine in Stockton, California and active in the NPI registry since January 2007. The organization lists James Leonard Sepiol, Preident, as its authorized official.

NPPES Registry Identity

NPI1306990015

Entity TypeOrganization

Primary Taxonomy2083X0100X

Legal Business NameSIERRA OCCUPATIONAL SERVICES

Location Address1429 W FREMONT STStockton, CA 95203-2627

Mailing Address1429 W Fremont StStockton, CA 95203-2627 · (209) 546-7767 · Fax (209) 546-7785

Phone(209) 546-7767

Fax(209) 546-7785

Organization SubpartNo

Authorized OfficialJames Leonard SepiolPreident · (209) 546-7767

Enumeration DateJanuary 22, 2007

Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration

✔ NPI 1306990015 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPreventive Medicine · Occupational MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083X0100X

Definition

Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

Also ListedFamily MedicineTaxonomy 207Q00000X

1429 W FREMONT ST, Stockton, CA 95203

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MATTHEW ALLEN

Physical Therapist