A Toms River doctor has pleaded guilty to taking part in a $13 million health care fraud in which he worked for purported telemedicine companies, writing out falsified orders for orthotic braces for Medicare beneficiaries whom he’d never spoken with, according to a news release issued by federal prosecutors.

The doctor, Joseph DeCorso, was one of some two dozen physicians charged in April in what federal authorities have called one of the largest health care fraud cases ever investigated by the FBI and the U.S. Department of Health and Human Services’ Office of the Inspector General, and prosecuted by the Department of Justice.