robert a.c devries m.d Dallas, TX 1990 to 2007 Medical Billing SpecialistNavarro County Tax Office Corsicana, TX 1988 to 1989 tax officenavarro county a.s.c.s office Corsicana, TX 1985 to 1988 A.S.C.S officefirst national bank of corsicana Corsicana, TX 1980 to 1985 tellertexas state bank Dallas, TX 1979 to 1980 proof deptfirst national bank of dallas Dallas, TX 1978 to 1979 commercial teller