A Newton dentist will pay the state nearly half a million dollars to resolve allegations that she improperly billed Medicaid for services rendered across multiple dental offices across the state.

According to an investigation by Attorney General Maura Healey’s office, Dr. Julia Faigel billed MassHealth twice under two billing codes for the same treatment. She allegedly billed for palliative treatment of dental pain — often done to ease pain around end of life — while also treating the issue.…