| Regional Medical Center | Anniston | Alabama | 36207 | - |
| UAB Comprehensive Cancer Center | Birmingham | Alabama | 35294 | - |
| Roy and Patricia Disney Family Cancer Center at Providence Saint Joseph Medical Center | Burbank | California | 91505 | - |
| Glendale Memorial Hospital Comprehensive Cancer Center | Glendale | California | 91204 | - |
| Rebecca and John Moores UCSD Cancer Center | La Jolla | California | 92093-0658 | - |
| - | Pismo Beach | California | 93449 | - |
| Robert and Beverly Lewis Family Cancer Care Center at Pomona Valley Hospital Medical Center | Pomona | California | 91767 | - |
| Helen and Harry Gray Cancer Center at Hartford Hospital | Hartford | Connecticut | 06102-5037 | - |
| Michael and Dianne Bienes Comprehensive Cancer Center at Holy Cross Hospital | Fort Lauderdale | Florida | 33308 | - |
| Memorial Cancer Institute at Memorial Regional Hospital | Hollywood | Florida | 33021 | - |
| Ella Milbank Foshay Cancer Center at Jupiter Medical Center | Jupiter | Florida | 33458 | - |
| CCOP - Mount Sinai Medical Center | Miami Beach | Florida | 33140 | - |
| Nancy N. and J. C. Lewis Cancer and Research Pavilion at St. Joseph's/Candler | Savannah | Georgia | 31405 | - |
| Resurrection Medical Center | Chicago | Illinois | 60631 | - |
| University of Chicago Cancer Research Center | Chicago | Illinois | 60637-1470 | - |
| Elkhart Clinic, LLC | Elkhart | Indiana | 46514-2098 | - |
| Elkhart General Hospital | Elkhart | Indiana | 46515 | - |
| Michiana Hematology-Oncology, PC - Elkhart | Elkhart | Indiana | 46514 | - |
| Howard Community Hospital | Kokomo | Indiana | 46904 | - |
| Center for Cancer Therapy at LaPorte Hospital and Health Services | La Porte | Indiana | 46350 | - |
| Michiana Hematology-Oncology, PC - South Bend | Mishawaka | Indiana | 46545-1470 | - |
| Saint Joseph Regional Medical Center | Mishawaka | Indiana | 46545-1470 | - |
| Michiana Hematology Oncology PC - Plymouth | Plymouth | Indiana | 46563 | - |
| CCOP - Northern Indiana CR Consortium | South Bend | Indiana | 46601 | - |
| Memorial Hospital of South Bend | South Bend | Indiana | 46601 | - |
| Michiana Hematology Oncology PC - La Porte | Westville | Indiana | 46391 | - |
| Cedar Rapids Oncology Associates | Cedar Rapids | Iowa | 52403 | - |
| Mercy Regional Cancer Center at Mercy Medical Center | Cedar Rapids | Iowa | 52403 | - |
| Central Baptist Hospital | Lexington | Kentucky | 40503-9985 | - |
| Lucille P. Markey Cancer Center at University of Kentucky | Lexington | Kentucky | 40536-0093 | - |
| Mary Bird Perkins Cancer Center - Baton Rouge | Baton Rouge | Louisiana | 70809 | - |
| Maine Center for Cancer Medicine and Blood Disorders - Scarborough | Scarborough | Maine | 04074 | - |
| Alvin and Lois Lapidus Cancer Institute at Sinai Hospital | Baltimore | Maryland | 21215 | - |
| Greater Baltimore Medical Center Cancer Center | Baltimore | Maryland | 21204 | - |
| Cancer Institute at St. Joseph Medical Center | Towson | Maryland | 21204 | - |
| Dana-Farber/Brigham and Women's Cancer Center | Boston | Massachusetts | 02115 | - |
| Dana-Farber/Harvard Cancer Center at Dana-Farber Cancer Institute | Boston | Massachusetts | 02115 | - |
| Newton-Wellesley Hospital | Newton | Massachusetts | 02462 | - |
| Green Bay Oncology, Limited - Escanaba | Escanaba | Michigan | 49431 | - |
| Dickinson County Healthcare System | Iron Mountain | Michigan | 49801 | - |
| Borgess Medical Center | Kalamazoo | Michigan | 49001 | - |
| Bronson Methodist Hospital | Kalamazoo | Michigan | 49007 | - |
| West Michigan Cancer Center | Kalamazoo | Michigan | 49007-3731 | - |
| Michiana Hematology Oncology PC - Niles | Niles | Michigan | 49120 | - |
| William Beaumont Hospital - Royal Oak Campus | Royal Oak | Michigan | 48073 | - |
| Lakeland Regional Cancer Care Center - St. Joseph | Saint Joseph | Michigan | 49085 | - |
| Lakeside Cancer Specialists, PLLC | Saint Joseph | Michigan | 49085 | - |
| Cancer Resource Center - Lincoln | Lincoln | Nebraska | 68510 | - |
| Alegant Health Cancer Center at Bergan Mercy Medical Center | Omaha | Nebraska | 68124 | - |
| CCOP - Missouri Valley Cancer Consortium | Omaha | Nebraska | 68106 | - |
| Creighton University Medical Center | Omaha | Nebraska | 68131-2197 | - |
| Immanuel Medical Center | Omaha | Nebraska | 68122 | - |
| Methodist Estabrook Cancer Center | Omaha | Nebraska | 68114 | - |
| New Hampshire Oncology - Hematology, PA at Payson Center for Cancer Care | Concord | New Hampshire | 03301 | - |
| New Hampshire Oncology - Hematology, PA - Hooksett | Hooksett | New Hampshire | 03106 | - |
| Saint Francis Hospital Cancer Center | Poughkeepsie | New York | 12601 | - |
| SUNY Upstate Medical University Hospital | Syracuse | New York | 13210 | - |
| Faxton Regional Cancer Center | Utica | New York | 13502 | - |
| Duke Comprehensive Cancer Center | Durham | North Carolina | 27710 | - |
| Wayne Memorial Hospital, Incorporated | Goldsboro | North Carolina | 27534 | - |
| Kinston Medical Specialists | Kinston | North Carolina | 28501 | - |
| Wake Forest University Comprehensive Cancer Center | Winston-Salem | North Carolina | 27157-1096 | - |
| Mercy Cancer Center at Mercy Medical Center | Canton | Ohio | 44708 | - |
| Arthur G. James Cancer Hospital and Richard J. Solove Research Institute at Ohio State University Comprehensive Cancer Center | Columbus | Ohio | 43210-1240 | - |
| Natalie Warren Bryant Cancer Center at St. Francis Hospital | Tulsa | Oklahoma | 74136 | - |
| Morgan Cancer Center at Lehigh Valley Hospital - Cedar Crest | Allentown | Pennsylvania | 18105 | - |
| St. Luke's Cancer Network at St. Luke's Hospital | Bethlehem | Pennsylvania | 18015 | - |
| Easton Regional Cancer Center at Easton Hospital | Easton | Pennsylvania | 18042 | - |
| Lancaster General Hospital | Lancaster | Pennsylvania | 17604 | - |
| Jameson Memorial Hospital - North Campus | New Castle | Pennsylvania | 16105 | - |
| Allegheny Cancer Center at Allegheny General Hospital | Pittsburgh | Pennsylvania | 15212 | - |
| UPMC Cancer Centers | Pittsburgh | Pennsylvania | 15232 | - |
| Medical City Dallas Hospital | Dallas | Texas | 75230 | - |
| University of Virginia Cancer Center | Charlottesville | Virginia | 22908 | - |
| Lynchburg Hematology-Oncology Clinic | Lynchburg | Virginia | 24501 | - |
| Providence Centralia Hospital | Centralia | Washington | 98531-9027 | - |
| St. Francis Hospital | Federal Way | Washington | 98003 | - |
| Providence St. Peter Hospital Regional Cancer Center | Olympia | Washington | 98506-5166 | - |
| Good Samaritan Cancer Center | Puyallup | Washington | 98372 | - |
| Allenmore Hospital | Tacoma | Washington | 98405 | - |
| CCOP - Northwest | Tacoma | Washington | 98405 | - |
| Franciscan Cancer Center at St. Joseph Medical Center | Tacoma | Washington | 98405-3004 | - |
| MultiCare Regional Cancer Center at Tacoma General Hospital | Tacoma | Washington | 98405 | - |
| St. Clare Hospital | Tacoma | Washington | 98499 | - |
| Green Bay Oncology, Limited at St. Mary's Hospital | Green Bay | Wisconsin | 54303 | - |
| Green Bay Oncology, Limited at St. Vincent Hospital Regional Cancer Center | Green Bay | Wisconsin | 54301-3526 | - |
| St. Mary's Hospital Medical Center - Green Bay | Green Bay | Wisconsin | 54303 | - |
| St. Vincent Hospital Regional Cancer Center | Green Bay | Wisconsin | 54307-3508 | - |
| Holy Family Memorial Medical Center Cancer Care Center | Manitowoc | Wisconsin | 54221-1450 | - |
| Bay Area Cancer Care Center at Bay Area Medical Center | Marinette | Wisconsin | 54143 | - |
| Green Bay Oncology, Limited - Oconto Falls | Oconto Falls | Wisconsin | 54154 | - |
| St. Nicholas Hospital | Sheboygan | Wisconsin | 53081 | - |
| Green Bay Oncology, Limited - Sturgeon Bay | Sturgeon Bay | Wisconsin | 54235 | - |