A woman charged with selling Matthew Perry the dose of ketamine that killed him is headed for a September trial.

Matthew Perry's ketamine provider, Dr. Salvador Plasencia, pleaded guilty to drug distribution charges, expressing remorse and agreeing to surrender his medical license.

A doctor pleaded guilty Wednesday to giving Matthew Perry ketamine in the month leading up to the "Friends" star's overdose death.

Physician who gave Matthew Perry ketamine pleads guilty Dr. Salvador Plasencia pleaded guilty to four counts of distributing ketamine. He faces up to 40 years in federal prison.

Of the individuals named by authorities in Perry’s death, Plasencia’s plea today leaves only Jasveen Sangha, aka the “Ketamine Queen,” remaining.

The doctor who supplied late actor Matthew Perry with the ketamine that contributed to his death formally pleaded guilty on Wednesday.