Skinny Beach, a San Diego-based medical spa offering world-class beauty services using cutting-edge laser technology, announced the addition of Tiffany Ross, MMS, PA-C, as physician assistant. In her new role, Ross will be responsible for day-to-day operations, completing Good Faith examinations, performing aesthetic procedures including laser skin resurfacing, laser hair removal, laser tattoo removal, photofacials, radiofrequency with ultrasound skin tightening and fat reduction, and administering…