Los Angeles is in Los Angeles County, which has five district offices of the state Division of Workers’ Compensation (DWC), more than any other county on the DWC’s list. Which one the DWC lists for a city of Los Angeles address depends on the ZIP code: downtown and most of central, east and south Los Angeles go to the Los Angeles district office on West 4th Street, and other parts of the city to Marina del Rey, Van Nuys or Long Beach.
The firm works from Newport Beach and appears for injured workers at the downtown Los Angeles office.
The downtown office on West 4th Street
- Los Angeles district office, 320 W. 4th Street, 9th Floor, Los Angeles, CA 90013-1954
- Main line 213-576-7335; Information and Assistance (I&A) unit 213-576-7389
By subway, the DWC says the 4th Street stairwell at Pershing Square station comes up across the street from the court.
Which of the five offices is listed for a Los Angeles ZIP code?
The DWC’s ZIP code locator gives the default office for any ZIP code. These are city of Los Angeles ZIP codes we checked in October 2026, with the office each one returned.
| Office | Address and phone | City ZIP codes we checked |
|---|---|---|
| Los Angeles | 320 W. 4th Street, 9th Floor, 90013, 213-576-7335 | 90012 and 90013 (downtown), 90042 (Highland Park) |
| Marina del Rey | 4720 Lincoln Boulevard, 2nd Floor, 90292, 310-482-3820 | 90025 (West Los Angeles), 90045 (Westchester), 90066 (Mar Vista), 90291 (Venice) |
| Van Nuys | 6150 Van Nuys Boulevard, Suite 105, 91401, 818-901-5367 | 91401 and 91405 (Van Nuys), 91601 and 91605 (North Hollywood), 91324 (Northridge), 91342 (Sylmar) |
| Long Beach | 1500 Hughes Way, Suite C203, Long Beach, 90810, 562-590-5001 | 90710 (Harbor City), 90731 and 90732 (San Pedro), 90744 (Wilmington) |
| Pomona | 732 Corporate Center Drive, Pomona, 91768, 909-623-4301 | None of the city ZIP codes we checked; it is listed for eastern county ZIP codes such as Pomona’s 91766, 91767 and 91768 |
Venue for a Los Angeles worker with an Orange County lawyer
For a worker who lives and was hurt in Los Angeles County, Labor Code section 5501.5 points to that county twice, by residence on the filing date and by place of injury. Hiring a lawyer adds the county of the lawyer’s principal place of business, and because our office is in Newport Beach, Orange County becomes a second county to consider for the Application for Adjudication of Claim, the form that opens a case before a workers’ comp judge. An employer that objects within 30 days of getting the information request form naming Orange County sends the filing back to residence or injury. Within Los Angeles County, with its five offices, subdivision (b) calls for a location in the county that meets those tests and the worker’s written consent to it.
Also at 320 W. 4th Street
The DWC’s Uninsured Employers Benefits Trust Fund (UEBTF) South office is in the same building, Suite 690, 213-576-7300. The fund pays when an employer that was illegally uninsured fails to pay benefits the Workers’ Compensation Appeals Board awarded. The DWC says an application for adjudication should be filed before benefits are requested from the fund.
How we handle a Los Angeles case
A Los Angeles case begins with the DWC-1 claim form, the letters from the claims administrator (whoever handles the claim for the insurer or a self-insured employer) and the medical reports.
If the firm takes the case, where it is filed is worked out with the client before the application goes in, along with the consent the statute requires. After that come the deadlines, the qualified medical evaluator (QME) process and the hearings: conferences by CourtCall video, and trials and expedited hearings in person at the office where the case is filed.
What we handle
Each benefit has its own page: denied claims, UR and IMR denials (utilization review is how the claims administrator decides a treatment request, and independent medical review is the outside check on that decision), temporary disability, permanent disability, QME evaluations, the SJDB voucher and return to work (the supplemental job displacement benefit, or SJDB), and medical treatment and MPN doctors (care through a medical provider network, or MPN).
Non-government employers in Los Angeles County
The City of Los Angeles’s financial report for the year ended June 30, 2023, citing the Los Angeles Business Journal, lists the largest non-government employers in Los Angeles County. Kaiser Permanente leads with 44,769 employees, followed by the University of Southern California, Northrop Grumman, Cedars-Sinai Medical Center and Allied Universal; Target, Providence Health & Services, Ralphs/Food 4 Less/Kroger, Walt Disney Co. and Boeing complete the ten. The city notes that the figures come from the employers themselves.
