Directory of Physicians (MD/DO)
- 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
- John Losee, MD
- John Lovett, MD
- John Ludlow, MD
- John Lynam, MD
- John Lynch, MD
- John Lyne, MD
- John Maggioncalda, MD
- John Mai, MD
- John Makari, MD
- John Malcolm, MD
- John Maldazys, MD
- John Malgieri, MD
- John Mancini, MD
- John Mani, MD
- John Mani, MD
- John Mansfield, MD
- John Martin, MD
- John Masterson, MD
- John Mata, MD
- John Matsuura, MD
- John Matteucci, MD
- John Maynard, MD
- John McCarthy, MD
- John McCauley, MD
- John McConnell, MD
- John McGeough, MD
- John Mcgetrick, MD
- John McHugh, MD
- John Mekras, MD
- John Mershon, MD