Four people pleaded guilty Thursday to running a pill mill under the guise of a pain clinic to illegally sell narcotics in DeKalb County.

“These defendants came to Georgia for the sole purpose of profiting personally from the sale of prescription narcotics to addicts and drug dealers,” said Acting U.S. Attorney John Horn said in an email. “Trafficking in prescription pain killers and other pharmaceuticals continues to be a top public safety issue in Georgia, leading to record levels of overdoses and addiction as well as a disturbing resurgence in heroin use by addicts who transition from abusing prescription pain killers.”

George Borbas, Randy Webman, Larry Webman, and Dara Webman all pleaded guilty to illegally distributing prescriptions including those for opiate-based narcotics, Horn said,

Larry Webman and Randy Webman ran the operation variously known as Premier Medical Management, Inc.; Premier Pain Management, Inc.; Premier Pain Management; and Premier Pain Management and Physical Therapy for about a year until January 2013. Dara Webman, the office manager, handed out narcotic prescriptions in exchange for cash payments ostensibly collected for office visits, prosecutors said.

While neither Larry Webman and Randy Webman had any medical training they often ” directed the decisions” of the clinic’s doctors regarding prescriptions at the clinic, prosecutors said. The clinic saw as many as 60 customers a day, who paid between $250 and $350 a visit, some traveling from North Carolina, Kentucky, Tennessee, Ohio, South Carolina, and Florida.

They would drive back from the lower and upper South for refills, prosecutors said.

The guilty pleas are as follows:

• George Borbas, 46, of Raleigh, N.C., pleaded guilty to drug trafficking conspiracy.

• Randy Webman, 62, of Hollywood, Fla., pleaded guilty to drug trafficking conspiracy and engaging in a money laundering conspiracy.

• Larry Webman, 66, of Hollywood, Fla., pleaded guilty to drug trafficking conspiracy and engaging in a money laundering conspiracy.

• Dara Webman, 31, of Hollywood, Fla., pleaded guilty to using the mail to illegally distribute drugs.

Sentencing is scheduled for Sept. 23. Two other people in the case, George Williams, the clinic doctor, and Liz Troncoso, a clinic worker, are awaiting trial.