A Clearwater man was arrested Friday for obtaining prescription drugs by fraud and prescribing controlled substances to patients after his medical license had been suspended.

According to Pinellas County Sheriff’s Office detectives, 56-year-old Alfred Chapman was a certified physician specializing in Osteopathic medicine in Clearwater. His license to practice medicine expired in March, and the Board of Osteopathic Medicine denied his request to renew the license in May.

The state Department of Health then issued an emergency suspension order in June, suspending Chapman's medical license for non-payment of school loans.

In June, PCSO detectives received information from the Florida Department of Health indicating that Chapman prescribed controlled substances to patients after his medical license expired. Then in October, detectives received additional information that Chapman forged prescriptions belonging to another doctor and filled the prescriptions at a local pharmacy in Clearwater.

The detectives confirmed that Chapman filled over 50 fraudulent prescriptions for five different patients from June to October while he was suspended from practicing medicine. They say that of the five patients listed on the fraudulent prescriptions, one was deceased, one lived outside the county, one moved out of the country, one was unable to be identified, and the fifth patient was likely an acquaintance of Chapman.

Detectives estimate that Chapman received over 6,000 tablets of Oxycodone, 600 tablets of Adderall, 360 tablets of Xanax and 1.65 ml of Methadone through fraudulent means.

Chapman has been charged with one count of Practicing Medicine without a License, one count of Trafficking in Oxycodone and four counts of Obtaining a Controlled Substance by Fraud. Clearwater police officers located and arrested Chapman at about 11 a.m. Friday.

The investigation continues.