| Memorial Sloan Kettering Cancer Center | New York | NY | 738 |
| Memorial Sloan Kettering Suffolk- Commack (Limited Protocol Activities) | Commack | NY | 294 |
| Memorial Sloan Kettering Monmouth (Limited Protocol Activities) | Middletown | NJ | 293 |
| Memorial Sloan Kettering Westchester (Limited Protocol Activities) | Harrison | NY | 292 |
| Memorial Sloan Kettering Bergen (Limited Protocol Activities) | Montvale | NJ | 289 |
| Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities) | Basking Ridge | NJ | 286 |
| Memorial Sloan Kettering Nassau | Uniondale | NY | 213 |
| Memorial Sloan Kettering Nassau (Limited Protocol Activites) | Rockville Centre | NY | 72 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 47 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 14 |
| Memorial Sloan Kettering Nassau (All Protocol Activities) | Rockville Centre | NY | 6 |
| Memorial Sloan Kettering Cancer Center - Investigational Drug Service Pharmacy | Long Island City | NY | 6 |
| Memorial Sloan Kettering Westchester | East White Plains | NY | 5 |
| Memorial Sloan Kettering | New York | NY | 4 |
| Memorial Sloan Kettering Basking Ridge | Basking Ridge | NJ | 4 |
| Memorial Sloan Kettering Basking Ridge (All Protocol Activities) | Basking Ridge | NJ | 4 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 3 |
| Memorial Sloan Kettering at Ralph Lauren Center (Limited Protocol Activities) | New York | NY | 3 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 2 |
| Memorial Sloan Kettering Cancer Center | Hauppauge | NY | 2 |
| Memorial Sloan Kettering (Monmouth) | Middletown | NY | 1 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 1 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 1 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 1 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 1 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 1 |
| Memorial Sloan Kettering Cancer Center | New York | NY | 1 |
| Memorial Sloan Kettering Cancer Center - Main Campus | Ney York | NY | 1 |
| Memorial Sloan Kettering Commack | New York | NY | 1 |
| Memorial Sloan Kettering Sleepy Hollow | Sleepy Hollow | NY | 1 |