A Plano doctor who was arrested in October on two counts of sexual assault of a child is accused of using a dating app to meet teenage boys in the early 2010s, one of whom he reportedly plied with drugs and recorded during sex.

Timothy Morris Collins (Tarrant County Sheriff's Department)

Timothy Morris Collins, 53, of Arlington was booked into the Tarrant County jail Oct. 30. In addition to the sex assault charges, he faces one count of possession of 1 to 4 grams of a controlled substance.

An attorney for Collins did not respond to requests for comment.

In arrest-warrant affidavits obtained by The Dallas Morning News, an Arlington detective writes that the two accusers — both now in their early 20s — reported the allegations of sexual abuse in September.

The first accuser said he was about 15 when he met Collins through the dating app Grindr. Collins gave the teenager GHB — also known as the date-rape drug — and methamphetamine before sexually assaulting him at Collins’ home, the affidavit says.

The teenager said he returned to Collins’ home at least 50 times over the next three years and continued to have sexual encounters with him in exchange for meth. He said Collins recorded up to a dozen of their encounters when he was underage and stored the videos in a safe in his bedroom.

The second accuser told authorities he was also about 15 when he met Collins through Grindr. He said he met Collins twice for sex — once at an Arlington motel and once at Collins’ home, where he saw cameras in the bedroom.

Police found body-camera video from July, when officers were called to a domestic disturbance at Collins’ home on Elmridge Drive. Footage from the bedroom showed cameras and a large safe as the accusers had described, police wrote in the affidavit.

Authorities reported finding methamphetamine when they arrested Collins. He posted $52,500 shortly after his arrest, court records show.

In October, the Texas Medical Board suspended Collins’ license “after determining his continuation in the practice of medicine poses a continuing threat to public welfare,” the board said in a written statement.

Collins, who specializes in family medicine, has been licensed since 1995 and his practice is based in Plano, according to the board.

The board has previously disciplined Collins on two occasions, in both instances finding deficits in how he handled controlled substances, among other issues.

Collins was arrested on a drug-possession charge in 2016 after authorities said he had meth, but a Tarrant County grand jury chose not to indict him.