Directory of Physicians (MD/DO)
- William Lennen, MD
- William Leone, MD
- William Lestini, MD
- William Levine, MD
- William Li, MD
- William Liesman, MD
- William Lighthart, MD
- William Lindner, MD
- William Lindner, MD
- William Lindsay, MD
- William Lipman, MD
- William Littlefield, MD
- William Lohrer, MD
- William Long, MD
- William Long, MD
- William Loscher, MD
- William Lowe, MD
- William Lowry, MD
- William Luetzow, MD
- William Lundberg, MD
- William Lundergan, MD
- William Lutes, MD
- William MacCarty, MD
- William Mackenzie, MD
- William Mackenzie, MD
- William Magee, MD
- William Mahoney, MD
- William Malik, MD
- William Mallon, MD
- William Maloney, MD
- William Mangione, MD
- William Manning, MD
- William Markmann, MD
- William Markowski, MD
- William Marshall, MD
- William Marshall, MD
- William Martin, MD
- William Martin, MD
- William Martin, MD
- William Mason, MD
- William Matarese, MD
- William Matthews, MD
- William Matthews, MD
- William May, MD
- William Mayfield, MD
- William Mayhall, MD
- William McCarthy, MD
- William McChesney, MD
- William McClelland, MD
- William McColl, MD