A 37-year-old surgical assistant who posed as a plastic surgeon, performing face-lifts, tummy tucks and other medical procedures with limited if any anesthesia, pleaded guilty to second-degree felony assault, criminal impersonation and unauthorized practice of a physician Friday.

Carlos Hernandez Fernandez claimed to be a licensed doctor since at least January 2015, performing procedures at Hernandez Fernandez Clinic at 424 S. Federal Blvd., according to a statement from Denver District Attorney Beth McCann.

He was initially charged with 15 counts against four victims in August, according to the DA’s office. But more victims came forward, bringing the total charges up to 126 counts with 37 victims. Under a plea deal, he pleaded guilty to only one count of assault, one count of impersonation and one count of unauthorized practice.

Fernandez faces a prison sentence of up to six years with three years of parole, according to the DA’s office. The term length will be determined at a sentencing scheduled for June 2. Fernandez must pay victims roughly $175,000 in restitution before or at the time of sentencing, according to the DA’s office. If more victims show documentation, more restitution will be paid.