Robert A Mosier

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.