Directory of Physicians (MD/DO)
- John Reynolds, MD
- John Riccio, MD
- John Rice, MD
- John Roback, MD
- John Robert Beck, MD
- John Roberts, MD
- John Robison, MD
- John Rogers, MD
- John Rollo, MD
- John Romer, MD
- John Ross, MD
- John Ross, MD
- John Russo, MD
- John Rust, MD
- John Ryder, MD
- John Sacoolidge, MD
- John Sacoolidge, MD
- John Sadler, MD
- John Salmon, MD
- John Sanchez, MD
- John Sawicki, MD
- John Scarborough, MD
- John Schaber, MD
- John Schaldenbrand, MD
- John Schmidt, MD
- John Schmieg, MD
- John Scholes, MD
- John Schoolmeester, MD
- John Schrecengost, MD
- John Schwartz, MD
- John Schweitzer, MD
- John Scopetta, MD
- John Scott, MD
- John Scott, MD
- John Shane, MD
- John Sheils, MD
- John Shelburne, MD
- John Sherbeck, MD
- John Shonnard, MD
- John Sinard, MD
- John Skaugen, MD
- John Skinner, MD
- John Soong, MD
- John Sorge, MD
- John Spalding, MD
- John Spinosa, MD
- John Stalls, MD
- John Stanfill, MD
- John Staropoli, MD
- John Stash, MD