OCCUPATIONAL HEALTH CENTERS OF CALIFORNIA, A MEDICAL CORPORATION
NPI 1043787211
Clinic/Center - Occupational Medicine in Oakland, CA

Q: What is Occupational Health Centers Of California, A Medical Corporation's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Occupational Medicine, with taxonomy code 261QX0100X.

Active since October 25, 2018

333 HEGENBERGER RD STE 100, OAKLAND, CA 94621(510) 638-0701(510) 638-1209 Get Directions Write a Review

NPPES record last updated: June 19, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jun 19, 2025, Oct 25, 2018 (2 updates tracked since 2018).

On this page

About Occupational Health Centers Of California, A Medical Corporation NPPES

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

OCCUPATIONAL HEALTH CENTERS OF CALIFORNIA, A MEDICAL CORPORATION (NPI 1043787211), doing business as Concentra Medical Center, is a healthcare organization registered as an occupational medicine in Oakland, California and active in the NPI registry since October 2018. The organization lists John Anderson, Vp, as its authorized official.

NPPES Registry Identity

NPI1043787211

Entity TypeOrganization

Primary Taxonomy261QX0100X

Legal Business NameOCCUPATIONAL HEALTH CENTERS OF CALIFORNIA, A MEDICAL CORPORATION

Location Address333 HEGENBERGER RD STE 100Oakland, CA 94621-1452

Mailing Address5080 Spectrum Dr Ste 1200wAddison, TX 75001-4624

Phone(510) 638-0701

Fax(510) 638-1209

Organization SubpartNo

Authorized OfficialJohn AndersonVp · (972) 364-8000

Enumeration DateOctober 25, 2018

Last NPPES UpdateJune 19, 20252 updates tracked since enumeration

NPPES CertifiedJune 19, 2025

✔ NPI 1043787211 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyClinic/Center · Occupational MedicineAmbulatory Health Care Facilities

Taxonomy Code261QX0100X

Also ListedClinic/Center · Health ServiceTaxonomy 261QH0100X

Also ListedClinic/Center · Physical TherapyTaxonomy 261QP2000X

333 HEGENBERGER RD STE 100, Oakland, CA 94621

Open in Google Maps ↗

Other Names 1

Doing Business AsConcentra Medical Center

Other Providers at the Same Location NPPES 3

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

NATALIE AMBRIZ PA-C

Physician Assistant

333 HEGENBERGER RD STE 100
OAKLAND, CA 94621

Alameda County (510) 638-0701

GRACE SOPHIA NELSON-BARER

Physical Therapist

333 HEGENBERGER RD STE 100
OAKLAND, CA 94621

Alameda County (510) 638-0701

AMERICAN CURRENT CARE OF CALIFORNIA, A MEDICAL CORPORATION

Clinic/Center (Urgent Care)

333 HEGENBERGER RD STE 100
OAKLAND, CA 94621

Alameda County (510) 638-0701

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Occupational Health Centers Of California, A Medical Corporation's NPI number?

The NPI number for Occupational Health Centers Of California, A Medical Corporation is 1043787211. It was assigned to this organization in the NPPES registry on October 25, 2018. The provider is doing business as Concentra Medical Center.

Where is Occupational Health Centers Of California, A Medical Corporation located?

Occupational Health Centers Of California, A Medical Corporation is located at 333 Hegenberger Rd Ste 100, Oakland, CA 94621. The listed phone number is (510) 638-0701.

What is Occupational Health Centers Of California, A Medical Corporation's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Occupational Medicine, with taxonomy code 261QX0100X.

When was this NPI record last updated?

The NPPES record for Occupational Health Centers Of California, A Medical Corporation was last updated on June 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.