Sierra Occupational Services
Sierra Occupational Services is a healthcare organization registered as Occupational Medicine Physician in Stockton, CA, holding Type 2 (organization) NPI 1306990015 since 2007. The authorized official on file is James Sepiol, Preident.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1306990015 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Sierra Occupational Services |
| Practice address | 1429 W FREMONT ST, Stockton, CA, 95203 |
| Phone | 2095467767 |
| Fax | 2095467785 |
| Enumeration date | 2007-01-22 |
| Last updated in NPPES | 2025-09-11 |
Authorized official
| Name | James Sepiol |
|---|---|
| Title | Preident |
| Phone | 2095467767 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207Q00000X | Family Medicine Physician | Secondary | — | — |
| 2083X0100X | Occupational Medicine Physician | Primary | — | — |
Copy-ready billing details
Provider: Sierra Occupational Services NPI: 1306990015 Taxonomy: 2083X0100X (Occupational Medicine Physician) Address: 1429 W FREMONT ST, Stockton, CA, 95203
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1629193305 | Xcel Orthopaedic Physical Therapy, Inc. | Organization | Physical Therapist | Stockton, CA |
| 1073739595 | Richard Crisp | Individual | Physical Therapist | Stockton, CA |
| 1780857474 | James Sepiol | Individual | Adult Medicine Physician | Stockton, CA |
| 1811290638 | Sheila Lederer | Individual | Medical Physician Assistant | Stockton, CA |
| 1104129857 | Tyreina Amey | Individual | Physical Therapy Assistant | Stockton, CA |
| 1235428830 | Diane Paul | Individual | Family Nurse Practitioner | Stockton, CA |
| 1538616586 | U.S. Healthworks Medical Group, PC | Organization | Urgent Care Clinic/Center | Stockton, CA |
| 1063933661 | Matthew Allen | Individual | Physical Therapist | Stockton, CA |
Verify this record
Cross-check NPI 1306990015 against the authoritative CMS record: view Sierra Occupational Services on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Who is the authorized official for Sierra Occupational Services?
What is the NPI number for Sierra Occupational Services?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-09-11.