OCCUPATIONAL HEALTH CENTERS OF CALIFORNIA, A MEDICAL CORPORATION
OCCUPATIONAL HEALTH CENTERS OF CALIFORNIA, A MEDICAL CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003383316, based in Irvine, CA. The organization lists 3 taxonomy classifications, with Occupational Medicine Clinic/Center recorded as primary.
Getting there
Here is what surrounds this office in Irvine, based on OpenStreetMap data collected Sep 22, 2026. Parking is available about 0.22 mi away. There is EV charging 0.25 mi from the office (Irvine - Main Street Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.20 mi away, served by Main-Von Karman. If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
Transit Von Karman-Morse 368 ft ~2 min
Parking 377 ft ~2 min
17935 Von Karman Avenue, Irvine 92614
Hotel Sonesta 448 ft ~2 min
Hotel Hilton Garden Inn Irvine/Orange County Airport 493 ft ~2 min
Transit Von Karman-Main 577 ft ~3 min
Parking 736 ft ~3 min
2130 Main Street, Irvine 92614
Hotel Embassy Suites Irvine Orange County Airport 795 ft ~4 min
Transit Main-Von Karman 0.20 mi ~5 min
Parking 0.22 mi ~5 min
1970 Main Street, Irvine 92614
EV charging Tesla Supercharger 0.23 mi ~5 min
Restaurant Il Fornaio 0.23 mi ~5 min
18051 Von Karman Avenue, Irvine 92612
Mo-Th 11:30-21:00; Fr 11:30-22:00; Sa 17:00-22:00; Su 17:00-21:00
EV charging Irvine - Main Street Supercharger 0.25 mi ~5 min
Restaurant Sol 0.28 mi ~6 min
1910 Main Street, Irvine 92614
Restaurant Bosscat Kitchen and Libations 0.28 mi ~6 min
18169 Von Karman Avenue, Irvine 92612
Mo-Th 11:00-22:00; Fr 11:00-23:00; Sa 10:00-14:30, 15:00-23:00; Su 10:00-14:30, 15:30-21:00
Coffee Krisp Fresh Living 0.47 mi ~10 min
2272 Michelson Drive, Irvine 92612
Mo-Fr 07:00-19:00; Sa-Su 09:00-17:00
Coffee Starbucks 0.48 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Occupational Medicine covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QX0100X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261QX0100X | Occupational Medicine Clinic/Center Occupational Medicine | — | — | primary |
| 261QH0100X | Health Service Clinic/Center Health Service | — | — | |
| 261QP2000X | Physical Therapy Clinic/Center Physical Therapy | — | — |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003383316 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 25, 2018 |
| Last updated | Jun 19, 2025 |
| Status | Active |
| Practice address |
2362 MORSE AVE Irvine, CA 92614 (949) 863-9103 Fax (949) 863-1337 |
| Mailing address |
5080 SPECTRUM DR STE 1200W Addison, TX 75001 |
| Other names |
Concentra Medical Center Former Legal Name |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 3 | 8 | 3 | 3 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 8 | 6 | 3 | 2 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.