Directory of U.S. Physician Assistants (PA)
- William Oder, PA
- William Ohl, PA
- William Orluk, PA
- William Osborne, PA
- William Overmyer, PA
- William Panzo, PA
- William Parent, PA
- William Parker, PA
- William Parnell, PA
- William Patterson, PA
- William Perry, PA
- William Petty, PA
- William Phelan, PA
- William Phillips, PA
- William Platt, PA
- William Plymale, PA
- William Powell, PA
- William Prescott, PA
- William Price, PA
- William Prickett, PA
- William Ramos, PA
- William Randall, PA
- William Rattan, PA
- William Reed, PA
- William Reeves, PA
- William Reisz, PA
- William Reynolds, PA
- William Reynolds, PA
- William Rice, PA
- William Richardson, PA
- William Richardson, PA
- William Riker, PA
- William Rist, PA
- William Ritenour, PA
- William Ritter, PA
- William Roach, PA
- William Roberts, PA
- William Rogers, PA
- William Rogers, PA
- William Rosa, PA
- William Rowland, PA
- William Ruml, PA
- William Russell, PA
- William Rutland, PA
- William Ryan, PA
- William Sarniguet Jerez, PA
- William Schafer, PA
- William Schalck, PA
- William Schmidt, PA
- William Schmitz, PA