Warren R. Webster


Address 275 Battery Street
Suite 1600
San Francisco, CA 94111

Phone 415.288.9800
Email wrw@hassard.com Download Vcard

Practice Areas

Medical Malpractice Defense

Life Sciences and Other Product Liability Litigation

General Civil Litigation


Case Western Reserve University

University of Colorado

Bar Admissions

Northern District of California

Ninth Circuit

Awards & Affiliations

CA State Bar Wiley W. Manuel Award, 2010, 2011 (honorable mention, 2012)

Warren R. Webster represents clients in federal and state courts in the areas of professional medical liability, products liability, public agency and environmental matters, including complex class action and administrative proceedings. He defends and advises manufacturers, distributors and retailers of a consumer products such as toys, jewelry, plumbing supplies and clothing, both in and outside California, regarding California’s Prop. 65 and the CPSIA. Warren also advises and consults on electronic discovery matters.

Warren has participated in numerous trials, hearings and administrative proceedings in federal and state courts. For example, in a multi-year Title VI class action case alleging racially discriminatory funding practices, he successfully defended a regional planning body (public entity) that was responsible for distributing approximately $1B in state and federal transportation funds, which was affirmed by the Ninth Circuit. Darensburg v. MTC, 636 F.3d 511 (9th Cir. 2011). Warren successfully defended a healthcare practitioner in administrative law trial and prevailed in a subsequent writ proceeding (CA Dept of Consumer Affairs, Bd. of Reg. Nursing v. Doe, 2010); He also represented pro bono, and secured asylum for, a client in immigration court proceedings.

Warren serves on the Board of Directors at Legal Aid of Marin.