Directory of Physicians (MD/DO)
- John Lemmer, MD
- John Letovsky, MD
- John Lieberman, MD
- John Lindgren, MD
- John Loomis, MD
- John Ludwig, MD
- John Lyle Tron Gomez, MD
- John M Morton, MD
- John Marshall, MD
- John Mastronarde, MD
- John McAnulty, MD
- John McCreary, MD
- John McDonald, MD
- John McGuire, MD
- John Mckenna, MD
- John Mcmullan Jr, MD
- John McQueston, MD
- John Mission, MD
- John Moorhead, MD
- John Morrison, MD
- John Muench, MD
- John Ng, MD
- John Nutt, MD
- John O'Shea, MD
- John Oppenheimer, MD
- John Organick-Lee, MD
- John Organick-Lee, MD
- John Paisley, MD
- John Placide, MD
- John Rabkin, MD
- John Rising, MD
- John Roll, MD
- John Ross, MD
- John Rudoff, MD
- John Santa, MD
- John Saultz, MD
- John Schumacher, MD
- John Seymour, MD
- John Stowers, MD
- John Stull, MD
- John Sullenbarger, MD
- John Swartzel, MD
- John Takacs, MD
- John Thellman, MD
- John Thiesing, MD
- John Thompson, MD
- John Thompson, MD
- John Topinka, MD
- John Townes, MD
- John Vetto, MD