Mark Chavez, the former doctor facing prison time for obtaining ketamine for Matthew Perry before his death, revealed he is working for Uber as he pleads for a soft sentence from the judge, Us Weekly can exclusively report. On December 3, Chavez, who could be sentenced to up to six months behind bars, revealed he surrendered his medical license after being charged. Chavez, who was once a practicing emergency room physician, said he lost his profession, "suffered public disgrace," and now earns a living as an Uber driver. He pointed out that the ketamine that he sold to codefendant, Dr. Salvador Plasencia, was not the ketamine that killed Perry. Perry died on October 28, 2023, at the age of 54. Perry's cause of death was determined to be "the acute effects of ketamine." Matthew Perry and Assistant Spent $55K on 55 Ketamine Vials in 29 Days He said he accepted responsibility for his crimes and immediately started working with investigators. Chavez suggested the court sentence him to time served and have him serve three years' probation. Prosecutors filed court docs recommending six months of home confinement followed by two years of probation and 200 hours of community service. They argued for a lighter sentence due to Chavez's cooperation and "substantial assistance." Prosecutors claim that Chavez "expediently accepted responsibility" after being confronted by investigators. They said he immediately agreed to work with them and agreed to assist law enforcement with its ongoing investigation "into more culpable offenders." Matthew Perry Kevin Winter/Getty Images In the filing, the government said Chavez provided evidence against Plasencia, who was also charged over Perry's death. He told investigators that Plasencia continued to sell Perry ketamine despite the actor's health "spiraling out of control." "He did this all for money," prosecutors said. They noted that he is no longer a doctor and works as a driver. In court documents, prosecutors allege that in September 2023, Chavez worked with Plasencia, to distribute ketamine to Perry illegally. Plasencia contacted Chavez about a "famous patient" who offered to pay a premium to get vials of ketamine. Chavez provided the ketamine to Plasencia, which was then sold to Perry. Chavez obtained the ketamine by submitting fraudulent prescriptions in the name of a patient without the patient's knowledge. 'Remorseful' Doctor Charged in Matthew Perry Death Accepts Plea Deal Plasencia took the ketamine and drove it to Perry's home, where he injected him and left behind one vial of ketamine. Plasencia told Chavez that his meeting at the actor's home was "like a bad movie." In October 2023, Chavez and Plasencia spoke about continuing to provide Perry with ketamine. Prosecutors claim to make sure he had a "steady stream of ketamine to sell to Perry," Chavez submitted false paperwork to medical distributors. The court docs accuse him of knowing Plasencia was providing Perry with ketamine in a medically unsafe manner. 5 People Federally Charged After Investigation Into Matthew Perry's Death Prosecutors claim Chavez scolded Plasencia during the conspiracy for being messy. He reprimanded Plasencia after learning Plasencia had injected Perry in the backseat of a parked car in a parking lot of a public aquarium in Long Beach, California. In October 2023, Chavez learned he was under investigation by the Medical Board of California over allegations he improperly took ketamine from a former clinic. As Us previously reported, on December 3, Plasencia was sentenced to 30 months in prison, followed by two years of supervised release. If you or someone you know is struggling with substance abuse, contact the Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline at 1-800-662-HELP (4357).