• Mark Chavez sentenced to eight months of home confinement in Matthew Perry overdose case.
• Chavez admitted to supplying ketamine to fellow doctor Salvador Plasencia, who sold it to Perry.
• Perry’s overdose on ketamine occurred in October 2023, prompting federal investigations.
• Chavez faces three years of supervised release and 300 hours of community service.
• Three other defendants involved in the case are yet to be sentenced.

Dr. Mark Chavez, who pleaded guilty in a scheme to supply ketamine to actor Matthew Perry, was sentenced to eight months of home confinement on December 16, 2025. U.S. District Judge Sherilyn Peace Garnett also imposed three years of supervised release and mandated 300 hours of community service, highlighting Chavez's cooperation with investigators as a factor in his sentencing, according to Los Angeles Times, BBC, and ABC News.

Chavez admitted in court that he supplied ketamine to Dr. Salvador Plasencia, who then distributed it to Perry, ultimately contributing to the actor’s overdose on October 28, 2023. Investigators revealed that Perry had been seeking the drug through an underground network after being denied prescription refills by his regular doctor, illustrating the circumstances of a multi-year federal investigation into the actor's death, as reported by South China Morning Post and Reuters.

During the sentencing, Judge Garnett highlighted the contrast in conduct between Chavez and Plasencia, the latter being sentenced to two and a half years in prison earlier for his direct role in Perry's drug use. Prosecutors argued that Chavez’s early acceptance of responsibility and cooperation with authorities warranted a more lenient sentence compared to others involved, according to Channel News Asia and Los Angeles Times.

Perry was found dead by his assistant, who reported the actor was unresponsive in a jacuzzi, and an autopsy concluded that ketamine played a significant role in his death. Other defendants, including Perry's personal assistant Kenneth Iwamasa and drug dealer Jasveen Sangha, known as the "Ketamine Queen," are scheduled for sentencing in the coming months, as noted by Reuters and BBC.