| Last Name | First Name | Title | Cell | Phone |
| O’Brien | Susan | DC | 330-402-4216 | susanobriendvm@gmail.com |
| O’Brien, Dennis | DC | densaidyes@aol.com | ||
| O’Brien, Susan | DVM | susanobriendvm@gmail.com | ||
O’Leary, Mary Beth | DVM | no-email56782@no-server | ||
| O’Sullivan, Anna | DC | aosullivan@bmts.com | ||
| Oakey-Kist, Tara | VMDDCDVM | no-email56982@no-server | ||
Obando, Jacqueline | DVM | no-email42714@no-server | ||
| Ober, John | DVM | no-email89303@no-server | ||
| Obermiller Roasa | Abby | abbyobermiller@yahoo.com | ||
| OConnor, Kara | DC | no-email671242@no-server | ||
Odenweller, Anne | DC | dr_anne@bellsouth.net | ||
Ohnemus-Kupfer, Petra | DVM | no-email541011@no-server | ||
| OKrepki, James | DVM | no-email17793@no-server | ||
| Okuda, Cinder | DC | okuda@redshift.com | ||
| Oliphant, Jill | DVM | jwesterholm@hagyard.com | ||
| Oller | Erica | DVM | hhawecare@gmail.com | |
| Olm | Dale | DVM | 707-745-1135 | dr.daleolm@gmail.com |
| Olsen | Lene | DVM | +00479 1755992 | lene@hestevet.no |
| Olsen, Cynthia | DVM | cynthia.juui@gmail.com | ||
| Olson, Jeanne | DVM | corvi@mosquitonet.com | ||
| Olson, Kristin | DVM | juggling@charter.net | ||
| OReilly, Debbie | DC | equusdc@yahoo.com | ||
Orenbuch, Evelyn Laura | DVM | evelynvet@comcast.net | ||
| Orme, David | DC | no-email9951@no-server | ||
Ormston, William | DVM | no-email70805@no-server | ||
| Orowitz, Jason | DC | jasonorowitz@gmail.com | ||
Ortenburger, Arthur | DVM | ortenburger@upei.ca | ||
| Osborne, Leslie | DVM | harborvet14@verizon.net | ||
Osborne, William | DC | |||
| Oslay, Lawrence | DC | |||
| Oslay*, Russell | DC | no-email36662@no-server | ||
Ostrowski, Dennis | DC | no-email10552@no-server | ||
| Otremba | Jolene | DC | 952-237-5626 | turnandburnjo@yahoo.com |
| Ouverson, Anna | DVM | no-email67772@no-server | ||
| Ouverson, Bill | DVM | no-email59482@no-server | ||
Overland*, Sheryl | DC | ahsl@aol.com | ||
| Owen, Gregory | DC | no-email21435@no-server |
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