Directory of Physicians (MD/DO)
- John Johnson, MD
- John Kaczmar, MD
- John Kailath, MD
- John Kark, MD
- John Kelly, MD
- John Kennedy, MD
- John Kessler, MD
- John Kessler, MD
- John Khoury, MD
- John Khuu, MD
- John Kiraly, MD
- John Kirkwood, MD
- John Knecht, MD
- John Kohrs, MD
- John Koreth, MD
- John Kosteva, MD
- John Kucharczyk, MD
- John Kuebler, MD
- John Kurnick, MD
- John Lahaniatis, MD
- John Laurie, MD
- John Lech, MD
- John Lee, MD
- John Lee, MD
- John Leighton, MD
- John Leonard, MD
- John Liang, MD
- John Lin, MD
- John Linford, MD
- John Link, MD
- John Lister, MD
- John Livingston, MD
- John Loscalzo, MD
- John Louis, MD
- John MacDonald, MD
- John MacNeill, MD
- John Mahoney, MD
- John Manfredi, MD
- John Manion, MD
- John Manis, MD
- John Marino, MD
- John Marshall, MD
- John Mathew, MD
- John Mattern, MD
- John Maul, MD
- John McBroom, MD
- John McCann, MD
- John McCarty, MD
- John Melson, MD
- John Melson, MD