John most recently created the Medical Stop Loss business for Berkshire Hathaway Specialty Insurance. Prior to his time at Berkshire, John was the founder and CEO of Medical Excess, a stop loss managing general underwriter. Medical Excess merged with an AIG company where John continued as CEO of the business until AIG acquired his interest. Post sale John served as Chief Strategy Officer for AIG’s employee benefits business, AIG Benefit Solutions. John possesses more than four decades of experience specializing in employer self-funded medical plans.