An Easton dentist has agreed to pay MassHealth, the state’s Medicaid program, $400,000 in restitution to resolve allegations that he overbilled for house calls to nursing home patients from July 2010 to September 2013.

Dr. Donald Prohovich, a dentist in the MassHealth program, allegedly violated a regulation created in 2010 that limits billing to one house call to a facility per day.

Investigators alleged that Prohovich submitted multiple claims for a single visit to a nursing home, billing per patient rather than once per facility, in “reckless disregard of the limitation under MassHealth regulations,” according to a statement today by Attorney General Martha Coakey’s office.

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Under the civil settlement reached, Prohovich has also agreed to certify that he and his staff will comply with existing regulations, the statement said.

His attorney, Paul Cirel, didn’t immediately return a message seeking comment.