In a letter to Robert Griffith, Woods' president and chief executive officer, Gold cited "gross incompetence, negligence, and misconduct" as the reasons the department was revoking the license of the unit where Nevins lived.
The letter and supporting documents did not accuse specific employees or offer new details about Nevins' treatment or his death.
But they said the circumstances indicated multiple violations of the state code regulating child residential facilities, including a provision that requires caregivers to check on clients at least every hour.
A 20-year-old with the mental ability of a toddler, Nevins was missing for nearly five hours when staffers found his body in the back of the parked van on one of the hottest afternoons of the summer.
"These violations pose a serious threat to the health and safety of the children at your facility," wrote Gold, who oversees the Office of Children, Youth, and Families.
The sanctions affect just a small slice of Woods Services. The company holds 36 other active licenses to provide services.
Bucks County prosecutors have charged a counselor, Stacey Strauss of Philadelphia, with felony neglect and other counts. They say Strauss, who had worked at the center for eight years, was responsible for Nevins after she and a coworker took him and three other clients to Sesame Place that morning and returned shortly after noon.
Through her attorney, Strauss has denied any wrongdoing and portrayed the death as a tragic accident. She is free on bail.
Nevins, a client at Woods for about five years, lived with at least eight others in a unit called Building 13, the state's inspection showed. The site was licensed to house up to 10 people.
