Dr. Pierson earned is Doctorate in Dental Surgery degree from Loma Linda University along with a Master’s in Public Health. He completed additional training in Anesthesiology, completing a residency in Anesthesiology, also at Loma Linda University. Dr. Pierson went on to earn a Board Certification/Diplomat in the National Dental Board of Anesthesiology. Dr. Pierson founded Hapy Bear Dentistry in 1997 in Visalia, California. As time went on, it became clear that there was a growing demand for treating children that need to be sedated for their dental needs in the safest environment possible. So, in 2010 he and his son Jeremy Pierson established Hapy Bear Surgery Center, a Joint Commission Accredited Ambulatory Surgery Center dedicated to treating children that need to be asleep for their treatment in the safest possible environment. Dr. Pierson maintains membership in the Tulare-Kings Dental Society, California Dental Association, American Dental Association, American Society of Dentist Anesthesiologists, and the American Dental Society of Anesthesiology.