| Northeast Alabama Regional Medical Center | Anniston | Alabama | 36202 | - |
| Huntsville Hospital | Huntsville | Alabama | 35801 | - |
| Mobile Infirmary Medical Center | Mobile | Alabama | 36652-2144 | - |
| East Alabama Medical Center | Opelika | Alabama | 36801-5452 | - |
| Alaska Regional Hospital Cancer Center | Anchorage | Alaska | 99508 | - |
| Mayo Clinic Scottsdale | Scottsdale | Arizona | 85259-5499 | - |
| Arizona Cancer Center at University of Arizona Health Sciences Center | Tucson | Arizona | 85724-5024 | - |
| Hembree Mercy Cancer Center at St. Edward Mercy Medical Center | Fort Smith | Arkansas | 72903 | - |
| Arkansas Cancer Research Center at University of Arkansas for Medical Sciences | Little Rock | Arkansas | 72205 | - |
| Providence Saint Joseph Medical Center - Burbank | Burbank | California | 91505 | - |
| Cancer Care Center at John Muir Health - Concord Campus | Concord | California | 94524-4110 | - |
| Washington Township Hospital | Fremont | California | 94538 | - |
| California Cancer Center - Woodward Park Office | Fresno | California | 93720 | - |
| USC/Norris Comprehensive Cancer Center and Hospital | Los Angeles | California | 90089-9181 | - |
| Desert Regional Medical Center Comprehensive Cancer Center | Palm Springs | California | 92262 | - |
| Shasta Regional Medical Center | Redding | California | 96001 | - |
| Sutter Cancer Center at Roseville Medical Center | Roseville | California | 95661 | - |
| Sutter Cancer Center | Sacramento | California | 95816 | - |
| University of California Davis Cancer Center | Sacramento | California | 95817 | - |
| CCOP - Santa Rosa Memorial Hospital | Santa Rosa | California | 95405 | - |
| John Muir/Mt. Diablo Comprehensive Cancer Center | Walnut Creek | California | 94598 | - |
| Memorial Hospital | Colorado Springs | Colorado | 80909 | - |
| Eastern Connecticut Hematology and Oncology Associates | Norwich | Connecticut | 06360 | - |
| Halifax Medical Center - Daytona Beach | Daytona Beach | Florida | 32115 | - |
| Broward General Medical Center Cancer Center | Fort Lauderdale | Florida | 33316 | - |
| West Florida Cancer Institute at West Florida Hospital - Pensacola | Pensacola | Florida | 32514 | - |
| CCOP - Atlanta Regional | Atlanta | Georgia | 30342 | - |
| Northside Hospital Cancer Center | Atlanta | Georgia | 30342-1611 | - |
| Piedmont Hospital | Atlanta | Georgia | 30309 | - |
| Saint Joseph's Hospital of Atlanta | Atlanta | Georgia | 30342-1701 | - |
| Augusta Oncology Associates - Walton Way | Augusta | Georgia | 30901 | - |
| WellStar Cobb Hospital | Austell | Georgia | 30106 | - |
| Charles B. Eberhart Cancer Center at DeKalb Medical Center | Decatur | Georgia | 30033 | - |
| Gwinnett Medical Center | Lawrenceville | Georgia | 30045 | - |
| Kennestone Cancer Center at Wellstar Kennestone Hospital | Marietta | Georgia | 30060 | - |
| Southern Regional Medical Center | Riverdale | Georgia | 30274-2600 | - |
| Curtis & Elizabeth Anderson Cancer Institute at Memorial Health University Medical Center | Savannah | Georgia | 31403-3089 | - |
| Pearlman Comprehensive Cancer Center at South Georgia Medical Center | Valdosta | Georgia | 31603 | - |
| Tripler Army Medical Center | Honolulu | Hawaii | 96859 | - |
| Hematology Oncology Associates of Eastern Idaho | Idaho Falls | Idaho | 83404 | - |
| Saint Anthony's Hospital at Saint Anthony's Health Center | Alton | Illinois | 62002 | - |
| Rush-Copley Cancer Care Center | Aurora | Illinois | 60507 | - |
| Decatur Memorial Hospital Cancer Care Institute | Decatur | Illinois | 62526 | - |
| Elmhurst Memorial Hospital | Elmhurst | Illinois | 60126 | - |
| Veterans Affairs Medical Center - Hines | Hines | Illinois | 60141 | - |
| Joliet Oncology-Hematology Associates, Limited - West | Joliet | Illinois | 60435 | - |
| La Grange Memorial Hospital | La Grange | Illinois | 60525 | - |
| Cardinal Bernardin Cancer Center at Loyola University Medical Center | Maywood | Illinois | 60153 | - |
| - | Moline | Illinois | 61265 | - |
| Trinity Medical Center - East | Moline | Illinois | 61265 | - |
| Good Samaritan Regional Health Center | Mount Vernon | Illinois | 62864 | - |
| West Suburban Center for Cancer Care | River Forest | Illinois | 60305 | - |
| Swedish-American Regional Cancer Center | Rockford | Illinois | 61104-2315 | - |
| Regional Cancer Center at Memorial Medical Center | Springfield | Illinois | 62781-0001 | - |
| Carle Cancer Center at Carle Foundation Hospital | Urbana | Illinois | 61801 | - |
| CCOP - Carle Cancer Center | Urbana | Illinois | 61801 | - |
| St. Francis Hospital and Health Centers - Beech Grove Campus | Beech Grove | Indiana | 46107 | - |
| Elkhart General Hospital | Elkhart | Indiana | 46515 | - |
| Howard Community Hospital at Howard Regional Health System | Kokomo | Indiana | 46904 | - |
| Center for Cancer Therapy at LaPorte Hospital and Health Services | La Porte | Indiana | 46350 | - |
| Saint Anthony Memorial Health Centers | Michigan City | Indiana | 46360 | - |
| Reid Hospital & Health Care Services, Incorporated | Richmond | Indiana | 47374 | - |
| CCOP - Northern Indiana CR Consortium | South Bend | Indiana | 46601 | - |
| Memorial Hospital of South Bend | South Bend | Indiana | 46601 | - |
| Saint Joseph Regional Medical Center | South Bend | Indiana | 46617 | - |
| - | Bettendorf | Iowa | 52722 | - |
| Hematology Oncology Associates of the Quad Cities | Bettendorf | Iowa | 52722 | - |
| Cedar Rapids Oncology Associates | Cedar Rapids | Iowa | 52403 | - |
| Mercy Regional Cancer Center at Mercy Medical Center | Cedar Rapids | Iowa | 52403 | - |
| St. Luke's Hospital | Cedar Rapids | Iowa | 52402 | - |
| Heartland Oncology & Hematology | Council Bluffs | Iowa | 51503 | - |
| Genesis Medical Center - West Campus | Davenport | Iowa | 52804 | - |
| Genesis Regional Cancer Center at Genesis Medical Center | Davenport | Iowa | 52803 | - |
| CCOP - Iowa Oncology Research Association | Des Moines | Iowa | 50309 | - |
| John Stoddard Cancer Center at Iowa Lutheran Hospital | Des Moines | Iowa | 50316-2301 | - |
| John Stoddard Cancer Center at Iowa Methodist Medical Center | Des Moines | Iowa | 50309 | - |
| Medical Oncology and Hematology Associates at John Stoddard Cancer Center | Des Moines | Iowa | 50309 | - |
| Medical Oncology and Hematology Associates at Mercy Cancer Center | Des Moines | Iowa | 50314 | - |
| Mercy Cancer Center at Mercy Medical Center - Des Moines | Des Moines | Iowa | 50314 | - |
| Mercy Capitol Hospital | Des Moines | Iowa | 50307 | - |
| Mercy Cancer Center at Mercy Medical Center - North Iowa | Mason City | Iowa | 50401 | - |
| McCreery Cancer Center at Ottumwa Regional | Ottumwa | Iowa | 52501 | - |
| Mercy Medical Center - Sioux City | Sioux City | Iowa | 51104 | - |
| Siouxland Hematology-Oncology Associates, LLP | Sioux City | Iowa | 51101 | - |
| Siouxland Regional Cancer Center | Sioux City | Iowa | 51101 | - |
| St. Luke's Regional Medical Center | Sioux City | Iowa | 51104 | - |
| Cedar Valley Medical Specialists, PC - West Ridgeway Avenue | Waterloo | Iowa | 50702 | - |
| Covenant Cancer Treatment Center | Waterloo | Iowa | 50702 | - |
| Cancer Center of Kansas, PA - Chanute | Chanute | Kansas | 66720 | - |
| Cancer Center of Kansas, PA - Dodge City | Dodge City | Kansas | 67801 | - |
| Cancer Center of Kansas, PA - El Dorado | El Dorado | Kansas | 67042 | - |
| Veterans Affairs Medical Center - Kansas City | Kansas City | Kansas | 64128 | - |
| Cancer Center of Kansas, PA - Kingman | Kingman | Kansas | 67068 | - |
| Southwest Medical Center | Liberal | Kansas | 67901 | - |
| Cancer Center of Kansas, PA - Newton | Newton | Kansas | 67114 | - |
| Cancer Center of Kansas, PA - Parsons | Parsons | Kansas | 67357 | - |
| Cancer Center of Kansas, PA - Pratt | Pratt | Kansas | 67124 | - |
| Cancer Center of Kansas, PA - Salina | Salina | Kansas | 67042 | - |
| Tammy Walker Cancer Center at Salina Regional Health Center | Salina | Kansas | 67401 | - |
| Stormont-Vail Cancer Center | Topeka | Kansas | 66604 | - |
| Cancer Center of Kansas, PA - Wellington | Wellington | Kansas | 67152 | - |
| Associates in Womens Health, PA - North Review | Wichita | Kansas | 67203 | - |
| Cancer Center of Kansas, PA - Medical Arts Tower | Wichita | Kansas | 67208 | - |
| Cancer Center of Kansas, PA - Wichita | Wichita | Kansas | 67214 | - |
| CCOP - Wichita | Wichita | Kansas | 67214 | - |
| Via Christi Cancer Center at Via Christi Regional Medical Center | Wichita | Kansas | 67214 | - |
| Cancer Center of Kansas, PA - Winfield | Winfield | Kansas | 67156 | - |
| Merle M. Mahr Cancer Center at Regional Medical Center of Hopkins County | Madisonville | Kentucky | 42431 | - |
| Tulane Cancer Center | Alexandria | Louisiana | 71315-3198 | - |
| Louisiana State University Health Sciences Center - Monroe | Monroe | Louisiana | 71210 | - |
| Christus Schumpert Cancer Treatment Center | Shreveport | Louisiana | 71101 | - |
| Feist-Weiller Cancer Center at Louisiana State University Health Sciences | Shreveport | Louisiana | 71130-3932 | - |
| Veterans Affairs Medical Center - Shreveport | Shreveport | Louisiana | 71101 | - |
| CancerCare of Maine at Eastern Maine Medial Center | Bangor | Maine | 04401 | - |
| MaineGeneral Medical Center - Waterville Campus | Waterville | Maine | 04901 | - |
| Sturdy Memorial Hospital | Attleboro | Massachusetts | 02703 | - |
| Cancer Research Center at Boston Medical Center | Boston | Massachusetts | 02118 | - |
| Addison Gilbert Hospital | Gloucester | Massachusetts | 01930 | - |
| UMASS Memorial Cancer Center - University Campus | Worcester | Massachusetts | 01655 | - |
| Hickman Cancer Center at Bixby Medical Center | Adrian | Michigan | 49221 | - |
| CCOP - Michigan Cancer Research Consortium | Ann Arbor | Michigan | 48106 | - |
| Saint Joseph Mercy Cancer Center | Ann Arbor | Michigan | 48106-0995 | - |
| Battle Creek Health System Cancer Care Center | Battle Creek | Michigan | 49017 | - |
| Mecosta County Medical Center | Big Rapids | Michigan | 49307 | - |
| Josephine Ford Cancer Center at Henry Ford Hospital | Detroit | Michigan | 48202 | - |
| Green Bay Oncology, Limited - Escanaba | Escanaba | Michigan | 49431 | - |
| Genesys Hurley Cancer Institute | Flint | Michigan | 48503 | - |
| Hurley Medical Center | Flint | Michigan | 48503 | - |
| CCOP - Grand Rapids | Grand Rapids | Michigan | 49503 | - |
| Lacks Cancer Center at Saint Mary's Health Care | Grand Rapids | Michigan | 49503 | - |
| Metro Health Hospital | Grand Rapids | Michigan | 49506 | - |
| Spectrum Health Hospital - Butterworth Campus | Grand Rapids | Michigan | 49503 | - |
| Van Elslander Cancer Center at St. John Hospital and Medical Center | Grosse Pointe Woods | Michigan | 48236 | - |
| Holland Community Hospital | Holland | Michigan | 49423 | - |
| Green Bay Oncology, Limited - Iron Mountain | Iron Mountain | Michigan | 49801 | - |
| Foote Hospital | Jackson | Michigan | 49201 | - |
| Borgess Medical Center | Kalamazoo | Michigan | 49001 | - |
| Bronson Methodist Hospital | Kalamazoo | Michigan | 49007 | - |
| West Michigan Cancer Center | Kalamazoo | Michigan | 49007-3731 | - |
| Sparrow Regional Cancer Center | Lansing | Michigan | 48909 | - |
| Upper Michigan Cancer Center at Marquette General Hospital | Marquette | Michigan | 49855 | - |
| MidMichigan Medical Center - Midland | Midland | Michigan | 48670 | - |
| Community Cancer Center of Monroe | Monroe | Michigan | 48162 | - |
| Mercy Memorial Hospital System | Monroe | Michigan | 48162 | - |
| Ted B. Wahby Cancer Center at Mount Clemens General Hospital | Mount Clemens | Michigan | 48043 | - |
| Hackley Hospital | Muskegon | Michigan | 49442 | - |
| Northern Michigan Hospital | Petoskey | Michigan | 49770 | - |
| Mercy Regional Cancer Center at Mercy Hospital | Port Huron | Michigan | 48060 | - |
| Seton Cancer Institute - Saginaw | Saginaw | Michigan | 48601 | - |
| Lakeland Cancer Care Center at Lakeland Hospital - St. Joseph | Saint Joseph | Michigan | 49085 | - |
| Munson Medical Center | Traverse City | Michigan | 49684 | - |
| St. John Macomb Hospital | Warren | Michigan | 48093 | - |
| - | Alexandria | Minnesota | 56308 | - |
| MeritCare Clinic - Bemidji | Bemidji | Minnesota | 56601 | - |
| Fairview Ridges Hospital | Burnsville | Minnesota | 55337 | - |
| Mercy and Unity Cancer Center at Mercy Hospital | Coon Rapids | Minnesota | 55433 | - |
| Cancer Care Center at St. Luke's Hospital | Duluth | Minnesota | 55805 | - |
| CCOP - Duluth | Duluth | Minnesota | 55805 | - |
| Miller-Dwan Medical Center | Duluth | Minnesota | 55805 | - |
| St. Mary's - Duluth Clinic Cancer Center | Duluth | Minnesota | 55805 | - |
| Fairview Southdale Hospital | Edina | Minnesota | 55435 | - |
| - | Fergus Falls | Minnesota | 56537 | - |
| Mercy and Unity Cancer Center at Unity Hospital | Fridley | Minnesota | 55432 | - |
| Hutchinson Area Health Care | Hutchinson | Minnesota | 55350 | - |
| Meeker County Memorial Hospital | Litchfield | Minnesota | 55355 | - |
| Immanuel St. Joseph's Clinic | Mankato | Minnesota | 56002 | - |
| HealthEast Cancer Care at St. John's Hospital | Maplewood | Minnesota | 55109 | - |
| Minnesota Oncology Hematology, PA at Maplewood Cancer Center | Maplewood | Minnesota | 55109 | - |
| Hennepin County Medical Center - Minneapolis | Minneapolis | Minnesota | 55415 | - |
| Virginia Piper Cancer Institute at Abbott-Northwestern Hospital | Minneapolis | Minnesota | 55407 | - |
| Chippewa County - Montevideo Hospital | Montevideo | Minnesota | 56265 | - |
| Hubert H. Humphrey Cancer Center at North Memorial Medical Center | Robbinsdale | Minnesota | 55422-2900 | - |
| Mayo Clinic Cancer Center | Rochester | Minnesota | 55905 | - |
| CentraCare Clinic - River Campus | Saint Cloud | Minnesota | 56303 | - |
| Coborn Cancer Center | Saint Cloud | Minnesota | 56303 | - |
| CCOP - Metro-Minnesota | Saint Louis Park | Minnesota | 55416 | - |
| Park Nicollet Health Services | Saint Louis Park | Minnesota | 55416 | - |
| Regions Hospital Cancer Care Center | Saint Paul | Minnesota | 55101 | - |
| St. Joseph's Hospital | Saint Paul | Minnesota | 55102 | - |
| United Hospital | Saint Paul | Minnesota | 55102 | - |
| Saint Francis Cancer Center | Shakopee | Minnesota | 55379 | - |
| Ridgeview Medical Center | Waconia | Minnesota | 55387 | - |
| Willmar Cancer Center at Rice Memorial Hospital | Willmar | Minnesota | 56201 | - |
| Minnesota Oncology Hematology, PA - Woodbury | Woodbury | Minnesota | 55125 | - |
| Woodwinds Health Campus | Woodbury | Minnesota | 55125 | - |
| University of Mississippi Medical Center | Jackson | Mississippi | 39216 | - |
| Saint Francis Medical Center | Cape Girardeau | Missouri | 63701 | - |
| Southeast Missouri Regional Cancer Center at Southeast Missouri Hospital | Cape Girardeau | Missouri | 63701 | - |
| Ellis Fischel Cancer Center at University of Missouri - Columbia | Columbia | Missouri | 65203 | - |
| Veterans Affairs Medical Center - Columbia (Truman Memorial) | Columbia | Missouri | 65201 | - |
| Capital Region Cancer Center | Jefferson City | Missouri | 65101 | - |
| Freeman Cancer Institute at Freeman Health System | Joplin | Missouri | 64804 | - |
| CCOP - Kansas City | Kansas City | Missouri | 64131 | - |
| CCOP - Cancer Research for the Ozarks | Springfield | Missouri | 65802 | - |
| Hulston Cancer Center at Cox Medical Center South | Springfield | Missouri | 65807 | - |
| St. John's Regional Health Center | Springfield | Missouri | 65804 | - |
| Arch Medical Services, Incorporated at Center for Cancer Care Research | St Louis | Missouri | 63141 | - |
| CCOP - St. Louis-Cape Girardeau | St Louis | Missouri | 63141 | - |
| David C. Pratt Cancer Center at St. John's Mercy | St Louis | Missouri | 63141 | - |
| Missouri Baptist Cancer Center | St Louis | Missouri | 63131 | - |
| Billings Clinic Cancer Center | Billings | Montana | 59107-5100 | - |
| CCOP - Montana Cancer Consortium | Billings | Montana | 59101 | - |
| Deaconess Billings Clinic - Downtown | Billings | Montana | 59107-7000 | - |
| Hematology-Oncology Centers of the Northern Rockies - Billings | Billings | Montana | 59101 | - |
| Northern Rockies Radiation Oncology Center | Billings | Montana | 59101 | - |
| St. Vincent Healthcare | Billings | Montana | 59101 | - |
| Bozeman Deaconess Cancer Center | Bozeman | Montana | 59715 | - |
| St. James Community Hospital | Butte | Montana | 59701 | - |
| - | Great Falls | Montana | 59405 | - |
| Big Sky Oncology | Great Falls | Montana | 59405 | - |
| Great Falls Clinic | Great Falls | Montana | 59405 | - |
| Sletten Regional Cancer Institute at Benefis Healthcare | Great Falls | Montana | 59405 | - |
| St. Peter's Hospital | Helena | Montana | 59601 | - |
| Glacier Oncology, PLLC | Kalispell | Montana | 59901 | - |
| Kalispell Medical Oncology | Kalispell | Montana | 59901 | - |
| Kalispell Regional Medical Center | Kalispell | Montana | 59901 | - |
| Community Medical Center | Missoula | Montana | 59801 | - |
| Guardian Oncology and Center for Wellness | Missoula | Montana | 59804 | - |
| Montana Cancer Center at St. Patrick Hospital and Health Sciences Center | Missoula | Montana | 59807 | - |
| Montana Cancer Specialists at Montana Cancer Center | Missoula | Montana | 59807-7877 | - |
| Good Samaritan Cancer Center at Good Samaritan Hospital | Kearney | Nebraska | 68848-1990 | - |
| 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 Cancer Center at Methodist Hospital - Omaha | Omaha | Nebraska | 68114 | - |
| CCOP - Nevada Cancer Research Foundation | Las Vegas | Nevada | 89106 | - |
| University Medical Center of Southern Nevada | Las Vegas | Nevada | 89102 | - |
| Hunterdon Regional Cancer Center at Hunterdon Medical Center | Flemington | New Jersey | 08822 | - |
| Carol G. Simon Cancer Center at Morristown Memorial Hospital | Morristown | New Jersey | 07962 | - |
| Jersey Shore Cancer Center at Jersey Shore University Medical Center | Neptune City | New Jersey | 07754-0397 | - |
| Overlook Hospital | Summit | New Jersey | 07902 | - |
| Veterans Affairs Medical Center - Buffalo | Buffalo | New York | 14215 | - |
| Finger Lakes Hematology and Oncology | Clifton Springs | New York | 14432 | - |
| Adirondack Cancer Care - Glens Falls | Glens Falls | New York | 12801 | - |
| CCOP - North Shore University Hospital | Manhasset | New York | 11030 | - |
| Don Monti Comprehensive Cancer Center at North Shore University Hospital | Manhasset | New York | 11030 | - |
| Tucker Center for Cancer Care at Orange Regional Medical Center | Middletown | New York | 10940-4199 | - |
| Winthrop University Hospital | Mineola | New York | 11501 | - |
| Long Island Jewish Medical Center | New Hyde Park | New York | 11042 | - |
| Interlakes Oncology/Hematology PC | Rochester | New York | 14623 | - |
| James P. Wilmot Cancer Center at University of Rochester Medical Center | Rochester | New York | 14642 | - |
| SUNY Upstate Medical University Hospital | Syracuse | New York | 13210 | - |
| Albert Einstein Cancer Center at Albert Einstein College of Medicine | The Bronx | New York | 10461 | - |
| Wayne Memorial Hospital, Incorporated | Goldsboro | North Carolina | 27534 | - |
| Lenoir Memorial Cancer Center | Kinston | North Carolina | 28501 | - |
| Rutherford Hospital | Rutherfordton | North Carolina | 28139 | - |
| Zimmer Cancer Center at New Hanover Regional Medical Center | Wilmington | North Carolina | 28401 | - |
| Bismarck Cancer Center | Bismarck | North Dakota | 58501 | - |
| Medcenter One Hospital Cancer Care Center | Bismarck | North Dakota | 58501 | - |
| Mid Dakota Clinic, PC | Bismarck | North Dakota | 58501 | - |
| St. Alexius Medical Center Cancer Center | Bismarck | North Dakota | 58502 | - |
| CCOP - MeritCare Hospital | Fargo | North Dakota | 58122 | - |
| Dakota Cancer Institute at Dakota Clinic - South University | Fargo | North Dakota | 58103 | - |
| MeritCare Broadway | Fargo | North Dakota | 58122 | - |
| McDowell Cancer Center at Akron General Medical Center | Akron | Ohio | 44307 | - |
| Wood County Oncology Center | Bowling Green | Ohio | 43402 | - |
| Mercy Cancer Center at Mercy Medical Center | Canton | Ohio | 44708 | - |
| Adena Regional Medical Center | Chillicothe | Ohio | 45601 | - |
| Charles M. Barrett Cancer Center at University Hospital | Cincinnati | Ohio | 45267 | - |
| Cleveland Clinic Taussig Cancer Center | Cleveland | Ohio | 44195 | - |
| MetroHealth's Cancer Care Center at MetroHealth Medical Center | Cleveland | Ohio | 44109 | - |
| CCOP - Columbus | Columbus | Ohio | 43215 | - |
| Doctors Hospital at Ohio Health | Columbus | Ohio | 43228 | - |
| Grant Riverside Cancer Services | Columbus | Ohio | 43215 | - |
| Mount Carmel Health - West Hospital | Columbus | Ohio | 43222 | - |
| Riverside Methodist Hospital Cancer Care | Columbus | Ohio | 43214-3998 | - |
| CCOP - Dayton | Dayton | Ohio | 45429 | - |
| Good Samaritan Hospital | Dayton | Ohio | 45406 | - |
| Grandview Hospital | Dayton | Ohio | 45405 | - |
| Samaritan North Cancer Care Center | Dayton | Ohio | 45415 | - |
| Veterans Affairs Medical Center - Dayton | Dayton | Ohio | 45428 | - |
| Grady Memorial Hospital | Delaware | Ohio | 43015 | - |
| Blanchard Valley Medical Associates | Findlay | Ohio | 45840 | - |
| Fremont Memorial Hospital | Fremont | Ohio | 43420 | - |
| Community Oncology Group at Cleveland Clinic Cancer Center | Independence | Ohio | 44131 | - |
| Kenton Oncology, Incorporated | Kenton | Ohio | 43326 | - |
| Charles F. Kettering Memorial Hospital | Kettering | Ohio | 45429 | - |
| Fairfield Medical Center | Lancaster | Ohio | 43130 | - |
| Lima Memorial Hospital | Lima | Ohio | 45804 | - |
| St. Rita's Medical Center | Lima | Ohio | 45801 | - |
| MedCentral - Mansfield Hospital | Mansfield | Ohio | 44903 | - |
| Strecker Cancer Center at Marietta Memorial Hospital | Marietta | Ohio | 45750 | - |
| Northwest Ohio Oncology Center | Maumee | Ohio | 43623 | - |
| St. Luke's Hospital | Maumee | Ohio | 43537 | - |
| Middletown Regional Hospital | Middletown | Ohio | 45044 | - |
| Licking Memorial Cancer Care Program at Licking Memorial Hospital | Newark | Ohio | 43055 | - |
| St. Charles Mercy Hospital | Oregon | Ohio | 43616 | - |
| Toledo Clinic - Oregon | Oregon | Ohio | 43616 | - |
| Firelands Regional Medical Center | Sandusky | Ohio | 44870 | - |
| North Coast Cancer Care, Incorporated | Sandusky | Ohio | 44870 | - |
| Community Hospital of Springfield and Clark County | Springfield | Ohio | 45505 | - |
| Mercy Medical Center | Springfield | Ohio | 45504 | - |
| Flower Hospital Cancer Center | Sylvania | Ohio | 43560 | - |
| CCOP - Toledo Community Hospital | Toledo | Ohio | 43617 | - |
| Medical University of Ohio Cancer Center | Toledo | Ohio | 43614 | - |
| St. Vincent Mercy Medical Center | Toledo | Ohio | 43608 | - |
| Toledo Clinic, Incorporated - Main Clinic | Toledo | Ohio | 43623 | - |
| Toledo Hospital | Toledo | Ohio | 43606 | - |
| UVMC Cancer Care Center at Upper Valley Medical Center | Troy | Ohio | 45373-1300 | - |
| Fulton County Health Center | Wauseon | Ohio | 43567 | - |
| Mount Carmel Cancer Services at Mount Carmel St. Ann's Hospital | Westerville | Ohio | 43081 | - |
| Cleveland Clinic - Wooster | Wooster | Ohio | 44691 | - |
| Ruth G. McMillan Cancer Center at Greene Memorial Hospital | Xenia | Ohio | 45385 | - |
| Tod Children's Hospital - Forum Health | Youngstown | Ohio | 44501 | - |
| Genesis - Good Samaritan Hospital | Zanesville | Ohio | 43701 | - |
| Merle West Medical Center Cancer Treatment Center | Klamath Falls | Oregon | 97601 | - |
| Kaiser Permanente Health Care - Portland | Portland | Oregon | 97232 | - |
| Oregon Health & Science University Cancer Institute | Portland | Oregon | 97239-3098 | - |
| Veterans Affairs Medical Center - Portland | Portland | Oregon | 97207 | - |
| Salem Hospital Regional Cancer Care Services | Salem | Oregon | 97309-5014 | - |
| Morgan Cancer Center at Lehigh Valley Hospital - Cedar Crest | Allentown | Pennsylvania | 18105 | - |
| Geisinger Medical Center | Danville | Pennsylvania | 17822-0001 | - |
| Oncology Hematology Associates of Northern Pennsylvania, PC at Hahne Regional Cancer Center | DuBois | Pennsylvania | 15801 | - |
| Easton Regional Cancer Center at Easton Hospital | Easton | Pennsylvania | 18042 | - |
| PinnacleHealth Regional Cancer Center at Polyclinic Hospital | Harrisburg | Pennsylvania | 17105 | - |
| Lancaster General Hospital | Lancaster | Pennsylvania | 17604 | - |
| St. Mary Regional Cancer Center | Langhorne | Pennsylvania | 19047 | - |
| Allegheny Cancer Center at Allegheny General Hospital | Pittsburgh | Pennsylvania | 15212 | - |
| Hematology and Oncology Associates of Northeastern Pennsylvania | Scranton | Pennsylvania | 18510 | - |
| Mercy Hospital Cancer Center - Scranton | Scranton | Pennsylvania | 18501 | - |
| Geisinger Medical Group - Scenery Park | State College | Pennsylvania | 16801 | - |
| Frank M. and Dorothea Henry Cancer Center at Geisinger Wyoming Valley Medical Center | Wilkes-Barre | Pennsylvania | 18711 | - |
| AnMed Cancer Center | Anderson | South Carolina | 29621 | - |
| Hollings Cancer Center at Medical University of South Carolina | Charleston | South Carolina | 29425 | - |
| Bon Secours St. Francis Health System | Greenville | South Carolina | 29601 | - |
| CCOP - Greenville | Greenville | South Carolina | 29615 | - |
| CCOP - Upstate Carolina | Spartanburg | South Carolina | 29303 | - |
| Gibbs Regional Cancer Center at Spartanburg Regional Medical Center | Spartanburg | South Carolina | 29303 | - |
| Rapid City Regional Hospital | Rapid City | South Dakota | 57701 | - |
| Avera Cancer Institute | Sioux Falls | South Dakota | 57105 | - |
| Medical X-Ray Center, PC | Sioux Falls | South Dakota | 57105 | - |
| Sioux Valley Hospital and University of South Dakota Medical Center | Sioux Falls | South Dakota | 57117-5039 | - |
| Thompson Cancer Survival Center | Knoxville | Tennessee | 37916 | - |
| U.T. Cancer Institute at University of Tennessee Medical Center | Knoxville | Tennessee | 37920-6999 | - |
| University of Tennessee Cancer Institute - Medical Center | Memphis | Tennessee | 38104 | - |
| Medical City Dallas Hospital | Dallas | Texas | 75230 | - |
| Brooke Army Medical Center | Fort Sam Houston | Texas | 78234 | - |
| Baylor University Medical Center - Houston | Houston | Texas | 77030 | - |
| Ben Taub General Hospital | Houston | Texas | 77030 | - |
| Methodist Hospital | Houston | Texas | 77030 | - |
| St. Luke's Texas Cancer Institute at St. Luke's Episcopal Hospital | Houston | Texas | 77030 | - |
| Veterans Affairs Medical Center - Houston | Houston | Texas | 77030 | - |
| Wilford Hall Medical Center | Lackland Air Force Base | Texas | 78236 | - |
| UMC Southwest Cancer and Research Center | Lubbock | Texas | 79415-3364 | - |
| Cancer Therapy and Research Center | San Antonio | Texas | 78229 | - |
| University Hospital - San Antonio | San Antonio | Texas | 78229 | - |
| University of Texas Health Science Center at San Antonio | San Antonio | Texas | 78229-3900 | - |
| Veterans Affairs Medical Center - San Antonio (Murphy) | San Antonio | Texas | 78209 | - |
| CCOP - Scott and White Hospital | Temple | Texas | 76508 | - |
| American Fork Hospital | American Fork | Utah | 84003 | - |
| Logan Regional Hospital | Logan | Utah | 84321 | - |
| Cottonwood Hospital Medical Center | Murray | Utah | 84107 | - |
| McKay-Dee Hospital Center | Ogden | Utah | 84403 | - |
| Utah Valley Regional Medical Center - Provo | Provo | Utah | 84604 | - |
| Huntsman Cancer Institute at University of Utah | Salt Lake City | Utah | 84112 | - |
| Latter Day Saints Hospital | Salt Lake City | Utah | 84143 | - |
| Utah Cancer Specialists at UCS Cancer Center | Salt Lake City | Utah | 84106 | - |
| Dixie Regional Medical Center - East Campus | St. George | Utah | 84770 | - |
| Martha Jefferson Hospital Cancer Care Center | Charlottesville | Virginia | 22901 | - |
| Danville Regional Medical Center | Danville | Virginia | 24541 | - |
| Lynchburg Hematology-Oncology Clinic | Lynchburg | Virginia | 24501 | - |
| Peninsula Cancer Institute - Newport News Office | Newport News | Virginia | 23601 | - |
| Veterans Affairs Medical Center - Richmond | Richmond | Virginia | 23249 | - |
| Auburn Regional Center for Cancer Care | Auburn | Washington | 98002 | - |
| St. Joseph Cancer Center | Bellingham | Washington | 98225 | - |
| Olympic Hematology and Oncology | Bremerton | Washington | 98310 | - |
| Providence Centralia Hospital Regional Cancer Center | Centralia | Washington | 98531-9027 | - |
| St. Francis Hospital | Federal Way | Washington | 98003 | - |
| Skagit Valley Hospital Cancer Care Center | Mount Vernon | Washington | 98273 | - |
| Providence St. Peter Hospital Regional Cancer Center | Olympia | Washington | 98506-5166 | - |
| Good Samaritan Cancer Center | Puyallup | Washington | 98372 | - |
| Fred Hutchinson Cancer Research Center | Seattle | Washington | 98104 | - |
| Group Health Central Hospital | Seattle | Washington | 98112 | - |
| Harborview Medical Center | Seattle | Washington | 98104 | - |
| Minor and James Medical, PLLC | Seattle | Washington | 98104 | - |
| Polyclinic First Hill | Seattle | Washington | 98122 | - |
| Swedish Cancer Institute at Swedish Medical Center - First Hill Campus | Seattle | Washington | 98122-4307 | - |
| University Cancer Center at University of Washington Medical Center | Seattle | Washington | 98195-6043 | - |
| Cancer Care Northwest - Spokane South | Spokane | Washington | 99202 | - |
| Providence Cancer Center at Holy Family Hospital | Spokane | Washington | 99207 | - |
| Providence Cancer Center at Sacred Heart Medical Center | Spokane | Washington | 99204 | - |
| Rockwood Clinic Cancer Treatment Center | Spokane | Washington | 99204-2967 | - |
| Allenmore Hospital | Tacoma | Washington | 98405 | - |
| CCOP - Northwest | Tacoma | Washington | 98405 | - |
| MultiCare Regional Cancer Center at Tacoma General Hospital | Tacoma | Washington | 98405 | - |
| St. Clare Hospital | Tacoma | Washington | 98499 | - |
| St. Joseph Medical Center at Franciscan Health System | Tacoma | Washington | 98405-3004 | - |
| Wenatchee Valley Medical Center | Wenatchee | Washington | 98801-2028 | - |
| Fox Valley Hematology and Oncology - East Grant Street | Appleton | Wisconsin | 54911-3496 | - |
| Green Bay Oncology, Limited at St. Mary's Hospital | Green Bay | Wisconsin | 54303 | - |
| Green Bay Oncology, Limited at St. Vincent Hospital | 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 | - |
| Mercy Regional Cancer Center | Janesville | Wisconsin | 53547 | - |
| Gundersen Lutheran Cancer Center at Gundersen Lutheran Medical Center | La Crosse | Wisconsin | 54601 | - |
| 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 | - |
| Marshfield Clinic - Marshfield Center | Marshfield | Wisconsin | 54449 | - |
| Green Bay Oncology, Limited - Oconto Falls | Oconto Falls | Wisconsin | 54154 | - |
| All Saints Cancer Center at Wheaton Franciscan Healthcare | Racine | Wisconsin | 53405 | - |
| Marshfield Clinic - Indianhead Center | Rice Lake | Wisconsin | 54868 | - |
| Green Bay Oncology, Limited - Sturgeon Bay | Sturgeon Bay | Wisconsin | 54235 | - |
| University of Wisconcin Cancer Center at Aspirus Wausau Hospital | Wausau | Wisconsin | 54401 | - |
| Welch Cancer Center at Sheridan Memorial Hospital | Sheridan | Wyoming | 82801 | - |