Dr. Cornelsen is a board certified pediatrician in private practice in Huntington Beach for over 30 years. He received his medical degree and completed his residency at Loma Linda School of Medicine.  Dr. Cornelsen is a Diplomat of American Academy of Pediatrics, as well as a member of AAP Chapters II and IV, American Medical Association, California Medical Association, and Orange County Medical Association.   He has served as Chairman of Pediatrics at Westminister Hospital and Huntington Beach Hospital and has also served as Vice Chairman of Orange County Poison Foundation.  Dr. Cornelsen participates in many clinical research trials in Pediatric Care Medical Group's Research Department and has an interest in special needs pediatric patients.