Capital Cardiology Consultants 1160 Varnum St Ne # 100 Washington, DC 20017 Phone : (202) 832-1800 Business Category Physicians & Surgeons-M.D. Physicians & Surgeons-Cardiology Herman C Gist Jr Md 1160 Varnum St Ne # 100 Washington, DC 20017 Phone : (202) 832-1800 Business Category Physicians & Surgeons-M.D.