Fayette County Office Serving Fayette County. 1450 Columbus Ave, Suite 105 Washington Court House, OH 43160 1450 Columbus Ave, Suite 105, Washington Court House, OH 43160 Address 1450 Columbus Ave, Suite 105 Washington Court House, OH 43160 Office Phone 740-520-0910 Fax 740-520-0197 Hours M-F, 8:00 a.m. - 4:00 p.m. Loading... Psychiatry Counseling Home-Based Supportive Services