A Kansas City man is headed to federal prison for his role in an oxycodone conspiracy that stretched across much of the metro area, including Eastern Jackson County, and elsewhere in western Missouri.

Gary D. Dickinson, aka James DeJong, was sentenced Tuesday to 10 years and 10 months in prison. He pleaded guilty to his role in the conspiracy last May.

Federal prosecutors say the conspiracy ran for two and a half years, starting in June 2013. Those involved stole health-care providers’ registration numbers with the Drug Enforcement Administration. They also stole prescription-quality paper. Then they wrote fraudulent prescriptions for oxycodone and typically sold 30 mg pills for $15 to $25. Authorities put the value of the illegally obtained drugs at $1.2 million.

Eleven people have pleaded guilty in the investigation. Dickinson is the tenth to be sentenced. Among others, the Blue Springs, Independence and Lee’s Summit police departments took part in the investigation.