Directory of U.S. Nurse Practitioners (NP)
- Barbara O Brien, NP/CNM/DNP
- Barbara O'Callaghan, NP/CNM/DNP
- Barbara Oberlin, NP/CNM/DNP
- Barbara O'Brien, NP/CNM/DNP
- Barbara O'Brien, NP/CNM/DNP
- Barbara Oess, NP/CNM/DNP
- Barbara Oldenburger, NP/CNM/DNP
- Barbara Olesen, NP/CNM/DNP
- Barbara Olesko, NP/CNM/DNP
- Barbara Olinger, NP/CNM/DNP
- Barbara Olmstead, NP/CNM/DNP
- Barbara Oonk, NP/CNM/DNP
- Barbara Opperwall, NP/CNM/DNP
- Barbara Ortiz, NP/CNM/DNP
- Barbara Osborne, NP/CNM/DNP
- Barbara Ossorio, NP/CNM/DNP
- Barbara Ostiguy, NP/CNM/DNP
- Barbara Ostrander, NP/CNM/DNP
- Barbara O'Sullivan, NP/CNM/DNP
- Barbara Otto, NP/CNM/DNP
- Barbara Overbey, NP/CNM/DNP
- Barbara Owens, NP/CNM/DNP
- Barbara Oyler, NP/CNM/DNP
- Barbara Page, NP/CNM/DNP
- Barbara Palen, NP/CNM/DNP
- Barbara Palkowski, NP/CNM/DNP
- Barbara Palmer, NP/CNM/DNP
- Barbara Palmer, NP/CNM/DNP
- Barbara Pangilinan, NP/CNM/DNP
- Barbara Paolucci, NP/CNM/DNP
- Barbara Paolucci, NP/CNM/DNP
- Barbara Pappas, NP/CNM/DNP
- Barbara Paradis, NP/CNM/DNP
- Barbara Paradis, NP/CNM/DNP
- Barbara Parham, NP/CNM/DNP
- Barbara Parish, NP/CNM/DNP
- Barbara Parkman, NP/CNM/DNP
- Barbara Parrott, NP/CNM/DNP
- Barbara Paternostro, NP/CNM/DNP
- Barbara Patterson, NP/CNM/DNP
- Barbara Paturalski, NP/CNM/DNP
- Barbara Patz, NP/CNM/DNP
- Barbara Paulo, NP/CNM/DNP
- Barbara Pavlovich, NP/CNM/DNP
- Barbara Peacock, NP/CNM/DNP
- Barbara Pearce, NP/CNM/DNP
- Barbara Peeples, NP/CNM/DNP
- Barbara Pekema, NP/CNM/DNP
- Barbara Pellegrin, NP/CNM/DNP
- Barbara Perryman, NP/CNM/DNP