NEWARK, N.J. (AP) — A doctor involved in a long-running bribes-for-test referrals scheme involving a now-defunct New Jersey firm has been sentenced to nearly three years in prison.

Federal prosecutors say Ahmed El Soury received a 33-month term on Wednesday. He had pleaded guilty in April to conspiracy.

El Soury lives in Monmouth Junction, New Jersey and had an internal medicine practice in Staten Island, New York.

Prosecutors say he got more than $66,000 in bribes from employees and associates of Parsippany-based Biodiagnostic Laboratory Services between March 2011 and April 2013. His referrals generated roughly $650,000 in business for the company.

Fifty-one people — including 37 physicians — have pleaded guilty or been convicted in the scheme. It involved millions of dollars in bribes and resulted in more than $100 million in payments to BLS from Medicare and various private insurers.