A Maine foot doctor has pleaded guilty to writing prescriptions for painkillers in exchange for cash and cocaine. Dr. John Perry of Bridgton pleaded guilty on Tuesday in U.S. District Court in Portland to multiple charges including conspiracy to distribute drugs, health care fraud and illegal distribution of oxycodone. The plea was part of a deal in which prosecutors agreed to seek a 10-year prison sentence. The judge is not obligated to follow that recommendation. Authorities say between June 2009 and October 2010, the podiatrist with offices in Portland wrote numerous prescriptions for oxycodone pills for a group of drug traffickers from Connecticut. The traffickers paid Perry for the prescriptions with cash and cocaine. The Bangor Daily News, reports that Perry blamed his crimes on addiction and mental illness.