| Comprehensive Cancer Institute of Huntsville | Huntsville | Alabama | 35801 | - |
| Oncology Center at Providence Park | Mobile | Alabama | 36688 | - |
| Arizona Clinical Research Center | Tucson | Arizona | 85712 | - |
| Citrus Valley Medical Center | Covina | California | 91722 | - |
| California Cancer Care, Inc. | Greenbrae | California | 94904-2007 | - |
| - | Los Angeles | California | 90067 | - |
| Kenmar Research Institute | Los Angeles | California | 90057 | - |
| Tower Hematology Oncology Medical Group | Los Angeles | California | 90048 | - |
| Medical Oncology Care Associates | Orange | California | 92868 | - |
| P.M.K. Medical Group, Inc. | Oxnard | California | 93030 | - |
| Cancer and Blood Institute of the Desert | Rancho Mirage | California | 92270 | - |
| Kaiser Permanente-Southern California Permanente Medical Group | San Diego | California | 92120 | - |
| John Wayne Cancer Institute | Santa Monica | California | 90404 | - |
| Kaiser Permanente Medical Center - Vallejo | Vallejo | California | 94589 | - |
| Colorado Permanente Medical Group, P.C. | Denver | Colorado | 80205 | - |
| Rocky Mountain Cancer Center | Denver | Colorado | 80218 | - |
| University of Colorado Cancer Center | Denver | Colorado | 80220 | - |
| Whittingham Cancer Center | Norwalk | Connecticut | 06856 | - |
| George Washington University Medical Center | Washington D.C. | District of Columbia | 20037 | - |
| Center for Hematology-Oncology | Boca Raton | Florida | 33486 | - |
| Comprehensive Cancer Care Specialists of Boca Raton | Boca Raton | Florida | 33428 | - |
| Southeast Florida Hematology-Oncology Group | Fort Lauderdale | Florida | 33308 | - |
| Florida Cancer Specialists | Fort Myers | Florida | 33901 | - |
| Shands Hospital and Clinics, University of Florida | Gainesville | Florida | 32610-100277 | - |
| Hematology and Oncology Associates of Jacksonville | Jacksonville | Florida | 32207 | - |
| University of Florida Health Science Center - Jacksonville | Jacksonville | Florida | 32209 | - |
| Lakeland Regional Medical Center | Lakeland | Florida | 33804 | - |
| Lake Heart and Cancer Medical Center | Leesburg | Florida | 34748 | - |
| Oncology-Hematology Group of South Florida | Miami | Florida | 33176 | - |
| Hematology and Oncology Consultants, P.A. | Orlando | Florida | 32804 | - |
| Hematology/Oncology Associates | Port Saint Lucie | Florida | 34952 | - |
| Oncology & Hematology Associates of West Broward | Tamarac | Florida | 33321 | - |
| University Community Hospital | Tampa | Florida | 33613 | - |
| Hematology and Oncology Consultants | Titusville | Florida | 32796 | - |
| North Idaho Cancer Center | Coeur d'Alene | Idaho | 83814 | - |
| Northwest Medical Specialists, P.C. | Arlington Heights | Illinois | 60004 | - |
| Dreyer Medical Clinic | Aurora | Illinois | 60506 | - |
| Northwestern Medical Faculty Foundation | Chicago | Illinois | 60611 | - |
| Cancer Care Center | New Albany | Indiana | 47150 | - |
| Albert B. Chandler Medical Center, University of Kentucky | Lexington | Kentucky | 40536-0084 | - |
| James Graham Brown Cancer Center | Louisville | Kentucky | 40202 | - |
| Kentuckiana Cancer Institute | Louisville | Kentucky | 40202 | - |
| Norton Healthcare Pavilion | Louisville | Kentucky | 40202 | - |
| Veterans Affairs Medical Center - Louisville | Louisville | Kentucky | 40206 | - |
| Baton Rouge General Medical Center | Baton Rouge | Louisiana | 70806 | - |
| Louisiana Oncology Associates | Lafayette | Louisiana | 70506 | - |
| Doctors Hospital of Jefferson | Metairie | Louisiana | 70006 | - |
| Stanley Scott Cancer Center | New Orleans | Louisiana | 70112 | - |
| Greater Baltimore Medical Center and Cancer Center | Baltimore | Maryland | 21204 | - |
| Medical Center of Boston | Boston | Massachusetts | 02120 | - |
| Berkshire Hematology Oncology, P.C. | Pittsfield | Massachusetts | 01201 | - |
| Barbara Ann Karmanos Cancer Institute | Detroit | Michigan | 48201-1379 | - |
| - | Flint | Michigan | 48532 | - |
| Parker Hughes Cancer Center | Roseville | Minnesota | 55113 | - |
| Jackson Oncology Associates, PLLC | Jackson | Mississippi | 39202 | - |
| Veterans Affairs Medical Center - Kansas City | Kansas City | Missouri | 64128 | - |
| Missouri Cancer Care, P.C. | Saint Charles | Missouri | 63301 | - |
| Siteman Cancer Center | St Louis | Missouri | 63110 | - |
| St. John's Mercy Medical Center | St Louis | Missouri | 63141 | - |
| Great Falls Clinic | Great Falls | Montana | 59405 | - |
| Western Montana Clinic | Missoula | Montana | 59807-7609 | - |
| Somerset Medical Center | Somerville | New Jersey | 08876 | - |
| Cooper Cancer Institute | Voorhees Township | New Jersey | 08043 | - |
| Veterans Affairs Medical Center - Albany | Albany | New York | 12208 | - |
| Queens Medical Associates, PC | Fresh Meadows | New York | 11365 | - |
| Queens Hospital Center | Jamaica | New York | 11432 | - |
| Interlakes Oncology/Hematology PC | Rochester | New York | 14623 | - |
| Montefiore Medical Center | The Bronx | New York | 10467-2490 | - |
| New York Medical College | Valhalla | New York | 10595 | - |
| Lineberger Comprehensive Cancer Center, UNC | Chapel Hill | North Carolina | 27599-7295 | - |
| Raleigh Hematology/Oncology Associates - Wake Practice | Raleigh | North Carolina | 27609 | - |
| Piedmont Hematology-Oncology Associates | Winston-Salem | North Carolina | 27103 | - |
| Cleveland Clinic Taussig Cancer Center | Cleveland | Ohio | 44195 | - |
| Hematology Oncology Consultants Inc | Columbus | Ohio | 43235 | - |
| Bend Memorial Clinic | Bend | Oregon | 97701 | - |
| Kaiser Permanente - Portland | Portland | Oregon | 97227 | - |
| Pinnacle Health Hospitals | Harrisburg | Pennsylvania | 17105-8700 | - |
| Abington Hematology Oncology Associates, Incorporated | Meadowbrook | Pennsylvania | 18974 | - |
| Pennsylvania Oncology Hematology Associates | Philadelphia | Pennsylvania | 19106 | - |
| University of Pennsylvania Cancer Center | Philadelphia | Pennsylvania | 19104 | - |
| University of Pittsburgh Cancer Institute | Pittsburgh | Pennsylvania | 15213 | - |
| Lifespan: The Miriam Hospital | Providence | Rhode Island | 02906 | - |
| Cancer Centers of the Carolinas | Greenville | South Carolina | 29615 | - |
| Physicians East - Quadrangle | Greenville | South Carolina | 27834 | - |
| Erlanger Health Systems | Chattanooga | Tennessee | 37403 | - |
| Baptist Regional Cancer Center - Knoxville | Knoxville | Tennessee | 37901 | - |
| Memphis Cancer Center | Memphis | Tennessee | 38119 | - |
| West Clinic | Memphis | Tennessee | 38117 | - |
| Tennessee Oncology, P.L.L.C. | Nashville | Tennessee | 37205 | - |
| Vanderbilt-Ingram Cancer Center | Nashville | Tennessee | 37232-6307 | - |
| Lone Star Oncology | Austin | Texas | 78759 | - |
| Center for Oncology Research and Treatment, Medical City Hospital | Dallas | Texas | 75230 | - |
| Baptist Health System Cancer Program | San Antonio | Texas | 78205 | - |
| Huntsman Cancer Institute | Salt Lake City | Utah | 84112 | - |
| Cancer Center at the University of Virginia | Charlottesville | Virginia | 22908 | - |
| Hematology-Oncology Associates of Frederiksburg, Inc. | Fredericksburg | Virginia | 22401 | - |
| Virginia Mason Medical Center | Seattle | Washington | 98101 | - |
| Advanced Health Care | Milwaukee | Wisconsin | 53209 | - |
| UW Cancer Center Wausau Hospital | Wausau | Wisconsin | 54401 | - |
| Irving Cancer Center | Laramie | Wyoming | 82070 | - |