Directory of Physicians (MD/DO)
- John Jaderlund, MD
- John Jaffe, MD
- John Janeiro, MD
- John Julian, MD
- John Jurige, MD
- John Kabalin, MD
- John Kaiser, MD
- John Kang, MD
- John Karod, MD
- John Kaspar, MD
- John Kefer, MD
- John Kehoe, MD
- John Keizur, MD
- John Kerns, MD
- John Kirkland, MD
- John Klein, MD
- John Klousia, MD
- John Knoedler, MD
- John Knud-Hansen, MD
- John Kolski, MD
- John Koonce, MD
- John Kosko, MD
- John Kowalczyk, MD
- John Kraft, MD
- John Krieger, MD
- John Kritsas, MD
- John Lacey, MD
- John Lacy, MD
- John Lam, MD
- John Laneri, Jr, MD
- John Lanesky, MD
- John Lange, MD
- John Lasater, MD
- John Lavelle, MD
- John Lavin, MD
- John Ledbetter, MD
- John Lee, MD
- John Leech, MD
- John Leininger, MD
- John Leppert, MD
- John Leyland, MD
- John Libertino, MD
- John Libertino, MD
- John Libertino, MD
- John Lifland, MD
- John Lin, MD
- John Lin, MD
- John Lindsey, MD
- John Liu, MD
- John Lobo, MD