A U.S. District Court Jury In Abingdon Virginia Has Convicted A Physician Assistant For Distributing Phentermine Tablets Using Her Drug Enforcement Administration Registration. 41 Year Old Melissa Hartwell Of Marion Was Found Guilty Of Conspiring To Distribute A Controlled Substance, Conspiracy To Allow The Use Of Her Dea Registration Number By Another Person And Distributing Phentermine. Hartwell Worked As A Physician Assistant At Mtrx, A Weight Loss Clinic In Bristol Tennessee. Hartwell Faces Up To Five Years In Prison And A Fine Of 250-Thousand Dollars. No Sentencing Date Has Been Set.