Directory of Physicians (MD/DO)
- John Railey, MD
- John Rajala, MD
- John Ray, MD
- John Raymond Robles, MD
- John Reagen, MD
- John Reed, MD
- John Reed, MD
- John Rees, MD
- John Reilly, MD
- John Reitnauer, MD
- John Renehan, MD
- John Rezkalla, MD
- John Richards, MD
- John Richter, MD
- John Rickards, MD
- John Riggans, MD
- John Riley, MD
- John Rincon-Hekking, MD
- John Robinson, MD
- John Rodriguez-Cordero, MD
- John Rollinson, MD
- John Rublaitus, MD
- John Runne, MD
- John Rutland, MD
- John Ryan, MD
- John Sabljic, MD
- John Saczawa, MD
- John Sakaleros, MD
- John Salama, MD
- John Salvador Marana, MD
- John Sammis, MD
- John Sammis, MD
- John Santare, MD
- John Savarese, MD
- John Sawyer, MD
- John Scarbrough, MD
- John Schmitz, MD
- John Schoettinger, MD
- John Schutz, MD
- John Scudiero, MD
- John Seligson, MD
- John Sencaj, MD
- John Shen, MD
- John Shen-Sampas, MD
- John Shepherd, MD
- John Shepherd, MD
- John Sherwood, MD
- John Shieh, MD
- John Shin, MD
- John Shubeck, MD