Directory – O
| FELLOW | YEAR | SCHOOL | EMPLOYER | POSITION |
| O’Donnell, Robert, M.D.; Ph.D. | 1992 | UCD | University of California, Davis, School of Medicine |
Associate Professor of Internal Medicine |
| Oh, Dennis, M.D., Ph.D. | 1996 | Stanford | University of California, San Francisco, School of Medicine |
Assistant Professor, Dermatology |
| Okuhn, Steven, M.D. | 1986 | UCSF | University of California, San Francisco, School of Medicine |
Assistant Clinical Professor of Surgery |
| O’Rourke, Robert, M.D. | 1998 | UCSF | Legacy Health System | Department of Minimally Invasive Surgery |