A former Glenwood Springs anesthesiologist and ketamine clinic operator was sentenced Thursday to 90 days in jail and six years of intensive sex offender probation after pleading guilty to two counts of attempted unlawful sexual contact.

Mark Rollin Young, 55, who formerly operated APEX Ketamine Therapy in Glenwood Springs, was arrested in April 2024. The case involved multiple “Jane Does” who alleged they were over-sedated and sexually abused while receiving treatment from Young. His arrest followed an investigation by Glenwood Springs Police, who encouraged other victims to come forward.

Young was originally charged with five felonies. One charge — initially filed as unlawful sexual contact with an at-risk person — was amended in the case to third-degree assault of an at-risk person after prosecutors determined the charge did not meet the required legal elements. The remaining four charges accused Young of unlawful sexual contact–fake medical exam. Prosecutors dismissed the original charges as part of a plea agreement, and in March, Young pleaded guilty to two counts of attempted unlawful sexual contact.

The sentence was stipulated as part of the plea agreement, meaning it was agreed upon by both the prosecution and the defense, and was formally imposed by 9th Judicial District Judge Denise Lynch.

During Thursday’s sentencing, Young accepted responsibility for his actions. Ninth Judicial District Attorney Ben Sollars said victims were present in the courtroom and gave statements to the court.

Young’s sentence includes standard conditions of sex offender intensive supervision probation. That includes restrictions on internet use, such as not subscribing to or using internet service providers for sexually-based content or social media, Sollars said. He must also register as a sex offender for life.

Young has remained out of custody on a $10,000 personal recognizance bond throughout the legal proceedings. His clinic has since closed.

Following Thursday’s hearing, Young was immediately taken into custody from the Garfield County Courthouse to begin serving his jail sentence. He is scheduled to be released from Garfield County Jail on Sept. 2.