Williamson Jr, Harold A Md M228 Medical Science Bldg Columbia, MO 65212 Phone : (573) 882-1758 Business Category Physicians & Surgeons-M.D. Physicians & Surgeons-Family Practice Green Meadows Family Practice 1 Hospital Dr # M224 Columbia, MO 65212 Phone : (573) 882-1758 Business Category Physicians & Surgeons-M.D.