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William Martin Shernoff

William Martin Shernoff

Insurance Lawyer
Shernoff Bidart Echeverria LLP
Claremont, CA
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About William Martin Shernoff

Attorney Biography

William M. Shernoff is the founding partner of Shernoff Bidart Echeverria LLP, a law firm specializing in insurance bad faith litigation. A longtime consumer advocate, Mr. Shernoff has made a career of representing insurance consumers in their cases against insurance companies. In 1979, he persuaded the California Supreme Court to establish new case law that permits plaintiffs to sue insurance companies for bad faith seeking both compensatory and punitive damages when they unreasonably handle a policyholder’s claim (Egan v. Mutual of Omaha).

Often called the “pioneer” of bad faith insurance law, Attorney William Shernoff is a nationally recognized trail blazer in the field with decades of experience representing individual and business insurance consumers.  A frequent lecturer and writer, Mr. Shernoff co-authored the legal textbook, “Insurance bad Faith Litigation,” which has become the field’s definitive treatise, as well as “How to Make Insurance Companies Pay Your Claims . . . . And What To Do If They Don’t,” “Payment Refused” and “Fight Back and Win – And How To Make Your HMO Pay Up.” Mr. Shernoff has also been featured in the New York Times, Wall Street Journal, Time Magazine, and on “60 Minutes.” Chambers USA, an international attorney ranking service, called Mr. Shernoff the “dean of insurance bad faith” and stated that he’s “as good as it gets in that area.”

Mr. Shernoff has also been featured in the New York TimesWall Street JournalTime Magazine, and on “60 Minutes.” Mr. Shernoff is an insurance bad faith lawyer, who maintains offices in Beverly Hills and Claremont California, has authored over 50 articles on insurance issues and is featured in the Rutter Group Seminar entitled “The Shernoff Insurance Bad Faith Seminar.”

Mr. Shernoff is handling lawsuits accusing health insurance carriers of routinely and illegally denying patients’ medical claims on the grounds that such treatments were not medically necessary even when recommended by treating doctors.  He is also involved in fighting on behalf of seniors who have suffered financial elder abuse by insurance companies who are denying legitimate insurance claims of seniors.

Practice Areas

Insurance Law (100%)

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Résumé - William Martin Shernoff

Bar Licenses

California State Bar
Member in Good Standing


University of Wisconsin Law School
University of Wisconsin Law School


California Lawyers Association, Litigation Section
California Lawyers Association, Litigation Section

Commercial Recognitions

Professional Involvement badge
Recognized for Professional Involvement
Lawyer Legion

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Contact William Martin Shernoff

William Martin Shernoff
Shernoff Bidart Echeverria LLP
600 S. Indian Hill Blvd
Claremont, CA 91711

More Information

Bar Membership Information

California Bar Membership -

William Martin Shernoff - Profile information with the State Bar of California - Find more information about William Martin Shernoff on the State Bar of California website, including: current status, actions affecting eligibility to practice law and disciplinary history.