Directory of Physicians (MD/DO)
- John Kinch, MD
- John King, MD
- John Kleiner, MD
- John Klonaris, MD
- John Ko, MD
- John Kolawole, MD
- John Kolawole, MD
- John Kotter, MD
- John Kramer, MD
- John Kristofich, MD
- John Krouse, MD
- John Kuhns, MD
- John Kundrick, MD
- John Kuwata, MD
- John Laird, MD
- John Lanzone, MD
- John Larry, MD
- John LaSala, MD
- John Lawrence, MD
- John Lawrence, MD
- John Layden, MD
- John Layher, MD
- John Lecluyse, MD
- John Lecluyse, MD
- John Ledoux, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lehman, MD
- John Lepore, MD
- John Lesser, MD
- John Levinson, MD
- John Lewis, MD
- John Lien, MD
- John Lin, MD
- John Lindsay, MD
- John Liuzzo, MD
- John Lobban, MD
- John Lombard, MD
- John Longabaugh, MD
- John Lopez, MD
- John Lopshire, MD
- John Loughran, MD
- John Lourie, MD