Directory of Physicians (MD/DO)
- John Lee, MD
- John Lemoine, MD
- John Leslie, MD
- John Levasseur, MD
- John Liao, MD
- John Liming, MD
- John Lloyd, MD
- John Luce, MD
- John Lutch, MD
- John Lynch, MD
- John Madara, MD
- John Madison, MD
- John Mahan, MD
- John Mansel, MD
- John Marini, MD
- John Masson, MD
- John Mastronarde, MD
- John Mathew, MD
- John May, MD
- John Mazzotta, MD
- John McArdle, MD
- John McArdle, MD
- John McAtee, MD
- John McCarren, MD
- John McCartney, MD
- John McCartney, MD
- John McClain, MD
- John McConnell, MD
- John McConville, MD
- John McDougall, MD
- John McDyer, MD
- John McGehee, MD
- John McGinniss, MD
- John McIlwaine, MD
- John Metcalfe, MD
- John Michael, MD
- John Michael Sweetnam, MD
- John Michael Sweetnam, MD
- John Michos, MD
- John Mikhail, MD
- John Millar, MD
- John Miller, MD
- John Mitchell, MD
- John Mitchell, MD
- John Morrison, MD
- John Morrissey, MD
- John Moss, MD
- John Mullon, MD
- John Munger, MD
- John Murray, MD