Primary Office2860 Michelle Dr. #220
Irvine, CA 92606
- Product Liability
- Defective Drugs
- Defective Medical Devices
- Medical Malpractice
- Complex Litigation
- New York
- Thomas Jefferson School of Law, J.D.
- American Association for Justice
- University of California Irvine
- Department of Veterans Affairs
- Kaiser Permanente
- OCBA/OCMA Medical Conference
- Harris Martin
Robert A. Mosier is a trial lawyer and the managing attorney of Sanders Viener Grossman, LLP’s Los Angeles office.
Mr. Mosier graduated with honors from the Thomas Jefferson School of Law in 1992, receiving both a Bachelor of Science in Law and Juris Doctorate degrees. Following law school, Mr. Mosier accepted a position at a small boutique law firm representing plaintiffs in diverse areas of law including patent and trademark infringement, eminent domain and business torts and quickly rose to lead trial counsel. In 1996, Mr. Mosier accepted a position at one of California’s preeminent medical malpractice defense firms. Mr. Mosier represented hospitals, physicians and medical providers accused of malpractice and medical license violations. During his tenure as a defense attorney, Mr. Mosier gained invaluable insight and education into the practice of medicine, health care and medical insurance issues. Mr. Mosier served as liaison counsel for the Orange County Medical Association/ Orange County Bar Association committee and was frequently invited to speak to hospitals and their staffs on medical/legal issues affecting doctor-patient care.
In 2000, Mr. Mosier left the defense practice becoming the managing partner of McGregor & Mosier, a law firm solely dedicated to representing the rights of plaintiffs. For the next decade, Mr. Mosier represented plaintiffs in medical malpractice, brain injury, birth injury and other significant injury matters through trial. Mr. Mosier obtained numerous multi-million dollar verdicts and settlements, including the largest settlement of its kind against a California public transportation company. Mr. Mosier also represented victims involved in unique injury and death cases, including hot air balloon crashes, trucking deaths and molestation cases. Mr. Mosier also prosecuted diverse appellate court issues, obtaining published opinions in the areas of constitutional law, separation of court jurisdiction and dischargeability of intentional tort claims.
In 2004, Mr. Mosier became licensed to practice law in the State of Arizona where he continued his representation of patients who suffered severe injuries from health care providers. Mr. Mosier’s practice also expanded to include actions against major pharmaceutical and medical device companies. In 2013, Mr. Mosier accepted the position of trial counsel and managing attorney of Sanders Viener Grossman, LLP’s California office.
Today, Mr. Mosier’s practice is almost exclusively focused on representing plaintiffs harmed by large pharmaceutical and medical device companies. He represents clients injured by Granuflo, Tylenol, Risperdal, Medtronic Infuse, Reglan, Crestor, Pain Pumps, Transvaginal Mesh, DePuy ASR and Pinnacle Hips, Januvia, Byetta and Yaz. He also serves as Co-Lead Counsel in the Risperdal and Invega Product Liability Cases JCCP 4775 litigation, Plaintiff’s Liaison Counsel in the In re Infusion Pain Pump JCCP 4615 litigation, the Plaintiff’s Steering Committee in the In Re Incretin Mimetics Product Liability Litigation MDL 2452, the Plaintiff’s Steering Committee in the In Re Zoloft Birth Defect Cases JCCP4771 and the Science Committee in the In re Fresenius Granuflo/Naturalyte Dialysate Products MDL 2428. Mr. Mosier is also a speaker at national legal conventions on various issues involving mass tort litigation.
In addition to being licensed to practice law in California, New York, and Arizona, Mr. Mosier is admitted to practice before the Supreme Court of the United States of America, Ninth District Court of Appeal, District Court of Arizona, District Court of California – Central and Southern Districts, District Court of New York – Southern District, and the Eastern District Court of Pennsylvania.
Mr. Mosier has held an AV Preeminent Attorney rating from Martindale Hubble since 2002, is a National Trial Lawyers – Top 100 Attorney, a member of the Million Dollar Advocates Forum, an Arizona Top Rated Attorney – Top Trial Lawyers in America and is a member of the American Association for Justice Leaders Forum. Mr. Mosier is also a member of the Arizona Trial Lawyers Association and past Board of Director Member of the Orange County Trial Lawyers Association.