About ROBERT BENIGAR JR. Robert Benigar Jr is a provider established in Plano, Texas and his medical specialization is psychiatry & neurology (psychiatry) with more than 21 years of experience. The NPI number of Robert Benigar Jr is 1750392734 and was assigned on August 2006. The practitioner's primary taxonomy code is 2084P0800X with license number M1508 (TX)..