Directory of Physicians (MD/DO)
- John Jefferson, MD
- John Jenkins, MD
- John Jones, MD
- John Just, MD
- John Kachoris, MD
- John Kareus, MD
- John Kearfott, MD
- John Kefalos, MD
- John Kelemen, MD
- John Kelsey, MD
- John Khoury, MD
- John Kilian, MD
- John Kincaid, MD
- John Kirk, MD
- John Kissel, MD
- John Konikkara, MD
- John Kylan Lynch, MD
- John Lansing, MD
- John Laterra, MD
- John Lavaccare, MD
- John Lawall, MD
- John Le, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Lee, MD
- John Legge, MD
- John Lewis, MD
- John Lincoln, MD
- John Lindsey, MD
- John Livingstone, MD
- John Lossing, MD
- John Lovell, MD
- John Lovell, MD
- John Lucas, MD
- John Lucking, MD
- John Lyle Tron Gomez, MD
- John Lynch, MD
- John Mackenzie, MD
- John Mahon, MD
- John Malone, MD
- John Malta, MD
- John Mareska, MD
- John Margraf, MD
- John Marler, MD
- John Mateer, MD
- John Mazziotta, MD