Gibson, Dunn & Crutcher LLP

Led by seasoned coverage litigators Deborah Stein and Geoffrey Sigler, Gibson, Dunn & Crutcher LLP is best known for its health insurance litigation aptitude, regularly handling class actions, coverage litigation, antitrust disputes, and various other lawsuits brought against insurance carriers, with notable success in recent years acting for United Healthcare and its subsidiaries in various high-stakes disputes. LA-based litigator Heather Richardson is integral to the practice and is a key contact for insurer clients facing complex disputes. Other key names are San Francisco-based litigator Winston Chan, who focuses on investigations and False Claims Act defense, and Richard Doren, a veteran trial and appellate litigator who aids clients in Los Angeles.