A Washington County dentist, who allegedly prescribed more than 6,600 narcotic pain killers to seven patients, was arrested today by state narcotics and Medicaid fraud agents.

Dr. Charles Kokoska, 48, of Millsboro, is a dentist with offices located at his Mill Street home and at 161 Waterdam Road in McMurray. 

A criminal complaint states between January 2009 and October 2010, Kokoska wrote more than 300 prescriptions for more than 6,600 narcotic pain killers to at least seven different patients.

Attorney General Linda Kelly said that the prescriptions were written for pain killers Oxycodone, Hydrocodone and Propoxyphene and filled at various pharmacies in Allegheny, Fayette, Greene and Washington counties.

Kokoska also wrote prescriptions for Diazepam, a generic form of Valium.

Kokoska is charged with seven counts of prohibited acts by medical professional and two counts of provider prohibited acts.

He was arraigned before Brownsville Magisterial District Judge Joshua Kanalis and released on $250,000 unsecured bail.

His preliminary hearing is scheduled for Feb. 6 at 10:45 a.m.