One Medical Health Care One Medical Visit Website Request Info 3515 Sicily Island Ln. Katy, TX 94111 (312) 927-6857 LinkedIn Twitter Instagram About Map About One Medical is a modern primary care practice on a mission to making quality care more affordable, accessible, and enjoyable for all through human-centered design, technology, and exceptional teams. What's Nearby? Distance: 5 10 15 20 25 50 mi.