Marlton-based Advocare, a physician-owned multi-specialty group, announced Monday it is adding five independent physician practices into the organization. Four out of the five new “Care Centers,” as they are referred to within Advocare, are based in New Jersey: Advocare Hillsborough Pediatrics in Hillsborough, Advocare Jersey Heights Pediatrics in Jersey City, Advocare Kintiroglou Pediatrics in West Orange and Florham Park, and Advocare Sunset Road Medical Associates in Burlington.