Dr. Sanjeev Grover, 49, pleaded guilty in March to federal charges of dispensing and distributing oxycodone. He lost his medical license. He took a plea deal and will be sentenced in a Tampa courtroom today. He faces up to 20 years in prison. Once, Grover had a fellowship at prestigious Duke University. He was a university professor. He treated cancer patients. So how did he go from being a respected doctor to dealing pills outside a fast food restaurant? The answer is simple: greed. He recently agreed to an interview with the Tampa Bay Times, offering a seldom-heard perspective about a prescription drug epidemic.