| Name | Membership Category | Date Admitted |
|---|---|---|
| Mohamed Nabil Obada | Medical/Graduate Student | 2/1/2019 |
| Daisy C Obiora, MD | Resident/Fellow | 10/1/2018 |
| Daisy C Obiora, MD | Resident/Fellow | 2/1/2019 |
| Aleksandar Obradovic | Medical/Graduate Student | 2/1/2019 |
| Gina Marcela Ocampo Flores, MD | International Resident | 3/1/2019 |
| Bruno Ocampo Rendon, MD | Resident/Fellow | 8/1/2018 |
| Atsuhiko Ochi, MD | International | 12/1/2018 |
| Carlos Armando Ochoa Pineda, MD | Active | 4/1/2019 |
| Brian D Odom, MD | Resident/Fellow | 10/1/2018 |
| Beibei Oelrich, MD | Associate | 11/1/2018 |
| James M Oelsen, MD | Resident/Fellow | 8/1/2018 |
| Makinna Caitlin Oestreich, BA | Medical/Graduate Student | 10/1/2018 |
| Claudia Ofori-Marfoh | Medical/Graduate Student | 9/1/2018 |
| Cesar Augusto Ogawa, MD | International | 10/1/2018 |
| Tomohiko Oguchi, MD, PhD | International | 3/1/2019 |
| Jorge Eduardo Ojeda Perez, MD | Resident/Fellow | 8/1/2018 |
| Chinonyerem Okoro, MD | Resident/Fellow | 2/1/2019 |
| Marcelo Ruben Oliva, MD | International Resident | 3/1/2019 |
| Elizabeth Jane Olive | Medical/Graduate Student | 1/1/2019 |
| Lorena Marçalo Oliveira, MD | International | 10/1/2018 |
| Jose Olivo Garate, MD | Resident/Fellow | 8/1/2018 |
| Ashley Olson, NP, RN | Advanced Practice Provider | 1/1/2019 |
| Ashley Jean Olson, PA-C | Advanced Practice Provider | 2/1/2019 |
| Aisosa Omorogbe | Medical/Graduate Student | 5/1/2019 |
| Ifeanyi C Onyeji, MD, BA | Resident/Fellow | 11/1/2018 |
| Carlos Humberto Oqueli Torres Sr, MD | Active | 4/1/2019 |
| Matthias Orberger, MD | International Resident | 2/1/2019 |
| Marco Alexis Wenceslao Ordonez Alcantara, MD | International Resident | 3/1/2019 |
| Juan Pablo Orell, MD | International Resident | 3/1/2019 |
| Ana Paola Orozco Lopez, MD | International Resident | 3/1/2019 |
| Maritza Orozpe Nunez, MD | Resident/Fellow | 7/1/2019 |
| Christopher D Ortengren, MD | Resident/Fellow | 7/1/2019 |
| Alfredo Ortiz, MD | International | 4/1/2019 |
| Jose Luis Ortiz Fullana | Medical/Graduate Student | 4/1/2019 |
| Marco Antonio Ortiz Herrera, MD | Active | 4/1/2019 |
| Angel L Ortiz RodrÃguez | Medical/Graduate Student | 5/1/2019 |
| Omar Ortiz-Alvarado, MD | Active | 7/1/2018 |
| Carlos Ortiz-Bonilla | Medical/Graduate Student | 8/1/2018 |
| Michael Ortman | Medical/Graduate Student | 9/1/2018 |
| Laura Nicole Oscar | Medical/Graduate Student | 12/1/2018 |
| Angulo Oscar, MD | International Resident | 3/1/2019 |
| Angelo Marino Osorio Toribio, MD | International Resident | 3/1/2019 |
| Victor Osornio Sanchez, MD | Active | 3/1/2019 |
| Victor E Otano-Rivera | Medical/Graduate Student | 10/1/2018 |
| Ignacio Otero, MD | International | 1/1/2019 |
| Samuel Otis, MD | Resident/Fellow | 2/1/2019 |
| Stephen Overholser, MD | Active | 4/1/2019 |
| Ahmad Ozair | Medical/Graduate Student | 12/1/2018 |
| Nariaki Ozaki, MD | International | 3/1/2019 |