Matthew J. Gilliss, D.O. of Haddon Heights, NJ died tragically in a motor vehicle accident in Cherry Hill, NJ during a storm Sunday evening, April 11, 2021. Matt was the youngest child of Dr. Alfred G. "Doc" and Barbara (nee Roller) Gilliss, Jr. and grew up in Merchantville with brothers David and Adam and, sister, Amy. Matt leaves his beloved wife Dr. Heather Crawford and their three treasured children, Gavin, Gabriel and Bella. He was a primary care physician and partner in an Advocare practice in Mt. Laurel, Williamstown and Vineland. Visitation and a memorial mass will take place on Saturday, April 17th. Full obituary.