| Regional Medical Center | Anniston | Alabama | 36202 | - |
| Clearview Cancer Institute | Huntsville | Alabama | 35805 | - |
| Sparks Regional Medical Center | Fort Smith | Arkansas | 72901 | - |
| Providence Saint Joseph Medical Center - Burbank | Burbank | California | 91505 | - |
| Virginia K. Crosson Cancer Center at St. Jude Medical Center | Fullerton | California | 92835 | - |
| Memorial Medical Center | Modesto | California | 95355 | - |
| Camino Medical Group - Treatment Center | Mountain View | California | 94040 | - |
| Palo Alto Medical Foundation | Palo Alto | California | 94301 | - |
| University of California Davis Cancer Center | Sacramento | California | 95817 | - |
| Kaiser Permanente Medical Office -Vandever Medical Office | San Diego | California | 92120 | - |
| Aurora Presbyterian Hospital | Aurora | Colorado | 80012 | - |
| Boulder Community Hospital | Boulder | Colorado | 80301-9019 | - |
| Penrose Cancer Center at Penrose Hospital | Colorado Springs | Colorado | 80933 | - |
| CCOP - Colorado Cancer Research Program | Denver | Colorado | 80224-2522 | - |
| Porter Adventist Hospital | Denver | Colorado | 80210 | - |
| Presbyterian - St. Luke's Medical Center | Denver | Colorado | 80218 | - |
| Rose Medical Center | Denver | Colorado | 80220 | - |
| St. Anthony Central Hospital | Denver | Colorado | 80204 | - |
| St. Joseph Hospital | Denver | Colorado | 80218 | - |
| Swedish Medical Center | Englewood | Colorado | 80110 | - |
| St. Mary's Regional Cancer Center at St. Mary's Hospital and Medical Center | Grand Junction | Colorado | 81502 | - |
| North Colorado Medical Center | Greeley | Colorado | 80631 | - |
| Sky Ridge Medical Center | Lone Tree | Colorado | 80124 | - |
| Hope Cancer Care Center at Longmont United Hospital | Longmont | Colorado | 80501 | - |
| McKee Medical Center | Loveland | Colorado | 80539 | - |
| St. Mary - Corwin Regional Medical Center | Pueblo | Colorado | 81004 | - |
| North Suburban Medical Center | Thornton | Colorado | 80229 | - |
| Exempla Lutheran Medical Center | Wheat Ridge | Colorado | 80033 | - |
| Manchester Memorial Hospital | Manchester | Connecticut | 06040 | - |
| Tunnell Cancer Center at Beebe Medical Center | Lewes | Delaware | 19958 | - |
| CCOP - Christiana Care Health Services | Newark | Delaware | 19713 | - |
| Lombardi Comprehensive Cancer Center at Georgetown University Medical Center | Washington D.C. | District of Columbia | 20007 | - |
| Walter Reed Army Medical Center | Washington D.C. | District of Columbia | 20307-5001 | - |
| 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 | - |
| Florida Hospital Cancer Institute at Florida Hospital Orlando | Orlando | Florida | 32803-1273 | - |
| M.D. Anderson Cancer Center at Orlando | Orlando | Florida | 32806 | - |
| Sacred Heart Cancer Center at Sacred Heart Hospital | Pensacola | Florida | 32504 | - |
| West Florida Cancer Institute at West Florida Hospital - Pensacola | Pensacola | Florida | 32514 | - |
| Phoebe Cancer Center at Phoebe Putney Memorial Hospital | Albany | Georgia | 31701 | - |
| John B. Amos Cancer Center | Columbus | Georgia | 31904 | - |
| Mountain States Tumor Institute at St. Luke's Regional Medical Center | Boise | Idaho | 83712 | - |
| Saint Anthony's Hospital at Saint Anthony's Health Center | Alton | Illinois | 62002 | - |
| Hematology Oncology Associates of Illinois - Berwyn | Berwyn | Illinois | 60402 | - |
| Illinois CancerCare - Bloomington | Bloomington | Illinois | 61701 | - |
| St. Joseph Medical Center | Bloomington | Illinois | 61701 | - |
| Illinois CancerCare - Canton | Canton | Illinois | 61520 | - |
| Illinois CancerCare - Carthage | Carthage | Illinois | 62321 | - |
| Memorial Hospital | Carthage | Illinois | 62321 | - |
| Hematology and Oncology Associates | Chicago | Illinois | 60611 | - |
| Robert H. Lurie Comprehensive Cancer Center at Northwestern University | Chicago | Illinois | 60611-3013 | - |
| Rush University Medical Center | Chicago | Illinois | 60612 | - |
| University of Chicago Cancer Research Center | Chicago | Illinois | 60637-1470 | - |
| Elmhurst Memorial Hospital | Elmhurst | Illinois | 60126 | - |
| Eureka Community Hospital | Eureka | Illinois | 61530 | - |
| Illinois CancerCare - Eureka | Eureka | Illinois | 61530 | - |
| Galesburg Clinic, PC | Galesburg | Illinois | 61401 | - |
| Galesburg Cottage Hospital | Galesburg | Illinois | 61401 | - |
| Illinois CancerCare - Galesburg | Galesburg | Illinois | 61401 | - |
| Illinois CancerCare - Havana | Havana | Illinois | 62644 | - |
| Mason District Hospital | Havana | Illinois | 62644 | - |
| Kellogg Cancer Care Center | Highland Park | Illinois | 60035 | - |
| Midwest Center for Hematology/Oncology | Joliet | Illinois | 60432 | - |
| Illinois CancerCare - Kewanee Clinic | Kewanee | Illinois | 61443 | - |
| North Shore Oncology and Hematology Associates, Limited - Libertyville | Libertyville | Illinois | 60048 | - |
| Illinois CancerCare - Macomb | Macomb | Illinois | 61455 | - |
| McDonough District Hospital | Macomb | Illinois | 61455 | - |
| Cardinal Bernardin Cancer Center at Loyola University Medical Center | Maywood | Illinois | 60153 | - |
| - | Moline | Illinois | 61265 | - |
| Trinity Cancer Center at Trinity Medical Center - 7th Street Campus | Moline | Illinois | 61265 | - |
| Illinois CancerCare - Monmouth | Monmouth | Illinois | 61462 | - |
| OSF Holy Family Medical Center | Monmouth | Illinois | 61462 | - |
| Good Samaritan Regional Health Center | Mount Vernon | Illinois | 62864 | - |
| Edward Hospital Cancer Center | Naperville | Illinois | 60540 | - |
| La Grange Oncology Associates - Geneva | Naperville | Illinois | 60563 | - |
| Cancer Care and Hematology Specialists of Chicagoland - Niles | Niles | Illinois | 60714 | - |
| BroMenn Regional Medical Center | Normal | Illinois | 61761 | - |
| Community Cancer Center | Normal | Illinois | 61761 | - |
| Illinois CancerCare - Community Cancer Center | Normal | Illinois | 61761 | - |
| Community Hospital of Ottawa | Ottawa | Illinois | 61350 | - |
| Oncology Hematology Associates of Central Illinois, PC - Ottawa | Ottawa | Illinois | 61350 | - |
| Cancer Treatment Center at Pekin Hospital | Pekin | Illinois | 61554 | - |
| Illinois CancerCare - Pekin | Pekin | Illinois | 61603 | - |
| CCOP - Illinois Oncology Research Association | Peoria | Illinois | 61615 | - |
| Methodist Medical Center of Illinois | Peoria | Illinois | 61636 | - |
| Oncology Hematology Associates of Central Illinois, PC - Peoria | Peoria | Illinois | 61615 | - |
| OSF St. Francis Medical Center | Peoria | Illinois | 61637 | - |
| Proctor Hospital | Peoria | Illinois | 61614 | - |
| Illinois CancerCare - Peru | Peru | Illinois | 61354 | - |
| Illinois Valley Community Hospital | Peru | Illinois | 61354 | - |
| Illinois CancerCare - Princeton | Princeton | Illinois | 61356 | - |
| Perry Memorial Hospital | Princeton | Illinois | 61356 | - |
| Swedish-American Regional Cancer Center | Rockford | Illinois | 61104-2315 | - |
| Hematology Oncology Associates - Skokie | Skokie | Illinois | 60076 | - |
| Illinois CancerCare - Spring Valley | Spring Valley | Illinois | 61362 | - |
| St. Margaret's Hospital | Spring Valley | Illinois | 61362 | - |
| Central Dupage Cancer Center | Winfield | Illinois | 60190 | - |
| St. Francis Hospital and Health Centers - Beech Grove Campus | Beech Grove | Indiana | 46107 | - |
| Community Hospital | Munster | Indiana | 46321 | - |
| Reid Hospital & Health Care Services | Richmond | Indiana | 47374 | - |
| McFarland Clinic, PC | Ames | Iowa | 50010 | - |
| - | Bettendorf | Iowa | 52722 | - |
| Hematology Oncology Associates of the Quad Cities | Bettendorf | Iowa | 52722 | - |
| Medical Oncology and Hematology Associates - West Des Moines | Clive | Iowa | 50325 | - |
| 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 | - |
| 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 | - |
| Holden Comprehensive Cancer Center at University of Iowa | Iowa City | Iowa | 52242-1002 | - |
| Veterans Affairs Medical Center - Iowa City | Iowa City | Iowa | 52246 | - |
| Mercy Medical Center - Sioux City | Sioux City | Iowa | 51104 | - |
| Siouxland Hematology-Oncology Associates, LLP | Sioux City | Iowa | 51101 | - |
| St. Luke's Regional Medical Center | Sioux City | Iowa | 51104 | - |
| Cedar Valley Medical Specialists, PC - West Ridgeway Avenue | Waterloo | Iowa | 50701 | - |
| 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 | - |
| Cancer Center of Kansas - Fort Scott | Fort Scott | Kansas | 66701 | - |
| Cancer Center of Kansas-Independence | Independence | Kansas | 67301 | - |
| Cancer Center of Kansas, PA - Kingman | Kingman | Kansas | 67068 | - |
| Lawrence Memorial Hospital | Lawrence | Kansas | 66044 | - |
| Southwest Medical Center | Liberal | Kansas | 67901 | - |
| Cancer Center of Kansas, PA - Newton | Newton | Kansas | 67114 | - |
| Menorah Medical Center | Overland Park | Kansas | 66209 | - |
| Saint Luke's Hospital - South | Overland Park | Kansas | 66213 | - |
| 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 | - |
| Shawnee Mission Medical Center | Shawnee Mission | Kansas | 66204 | - |
| Cotton-O'Neil Cancer Center | Topeka | Kansas | 66606 | - |
| Cancer Center of Kansas, PA - Wellington | Wellington | Kansas | 67152 | - |
| Associates in Womens Health, PA - North Review | Wichita | Kansas | 67208 | - |
| 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 | - |
| Wesley Medical Center | Wichita | Kansas | 67214 | - |
| Cancer Center of Kansas, PA - Winfield | Winfield | Kansas | 67156 | - |
| CancerCare of Maine at Eastern Maine Medical Center | Bangor | Maine | 04401 | - |
| MaineGeneral Medical Center - Waterville | Waterville | Maine | 04901 | - |
| Greenebaum Cancer Center at University of Maryland Medical Center | Baltimore | Maryland | 21201 | - |
| Union Hospital Cancer Program at Union Hospital | Elkton | Maryland | 21921 | - |
| Beth Israel Deaconess Medical Center | Boston | Massachusetts | 02215 | - |
| Dana-Farber/Brigham and Women's Cancer Center | Boston | Massachusetts | 02115 | - |
| Dana-Farber/Harvard Cancer Center at Dana Farber Cancer Institute | Boston | Massachusetts | 02115 | - |
| Massachusetts General Hospital | Boston | Massachusetts | 02114 | - |
| Lahey Clinic Medical Center - Burlington | Burlington | Massachusetts | 01805 | - |
| 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 | - |
| Oakwood Cancer Center at Oakwood Hospital and Medical Center | Dearborn | Michigan | 48123-2500 | - |
| Green Bay Oncology, Limited - Escanaba | Escanaba | Michigan | 49431 | - |
| Genesys Hurley Cancer Institute | Flint | Michigan | 48503 | - |
| Hurley Medical Center | Flint | Michigan | 48503 | - |
| Van Elslander Cancer Center at St. John Hospital and Medical Center | Grosse Pointe Woods | Michigan | 48236 | - |
| Dickinson County Healthcare System | Iron Mountain | Michigan | 49801 | - |
| Foote Memorial Hospital | Jackson | Michigan | 49201 | - |
| Borgess Medical Center | Kalamazoo | Michigan | 49001 | - |
| Bronson Methodist Hospital | Kalamazoo | Michigan | 49007 | - |
| West Michigan Cancer Center | Kalamazoo | Michigan | 49007-3731 | - |
| Haematology-Oncology Associates of Ohio and Michigan, PC | Lambertville | Michigan | 48144 | - |
| Sparrow Regional Cancer Center | Lansing | Michigan | 48912-1811 | - |
| St. Mary Mercy Hospital | Livonia | Michigan | 48154 | - |
| Community Cancer Center of Monroe | Monroe | Michigan | 48162 | - |
| Mercy Memorial Hospital - Monroe | Monroe | Michigan | 48162 | - |
| St. Joseph Mercy Oakland | Pontiac | Michigan | 48341-2985 | - |
| Mercy Regional Cancer Center at Mercy Hospital | Port Huron | Michigan | 48060 | - |
| Seton Cancer Institute at Saint Mary's - Saginaw | Saginaw | Michigan | 48601 | - |
| Oncology Care Associates, PLLC | Saint Joseph | Michigan | 49085 | - |
| Providence Cancer Institute at Providence Hospital - Southfield Campus | Southfield | Michigan | 48075 | - |
| St. John Macomb Hospital | Warren | Michigan | 48093 | - |
| - | Alexandria | Minnesota | 56308 | - |
| Fairview Ridges Hospital | Burnsville | Minnesota | 55337 | - |
| Mercy and Unity Cancer Center at Mercy Hospital | Coon Rapids | Minnesota | 55433 | - |
| Fairview Southdale Hospital | Edina | Minnesota | 55435 | - |
| Mercy and Unity Cancer Center at Unity Hospital | Fridley | Minnesota | 55432 | - |
| Hutchinson Area Health Care | Hutchinson | Minnesota | 55350 | - |
| HealthEast Cancer Care at St. John's Hospital | Maplewood | Minnesota | 55109 | - |
| Minnesota Oncology Hematology, PA - Maplewood | Maplewood | Minnesota | 55109 | - |
| Hennepin County Medical Center - Minneapolis | Minneapolis | Minnesota | 55415 | - |
| Veterans Affairs Medical Center - Minneapolis | Minneapolis | Minnesota | 55417 | - |
| Virginia Piper Cancer Institute at Abbott - Northwestern Hospital | Minneapolis | Minnesota | 55407 | - |
| Hubert H. Humphrey Cancer Center at North Memorial Outpatient 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 Cancer Center | Saint Louis Park | Minnesota | 55416 | - |
| Regions Hospital Cancer Care Center | Saint Paul | Minnesota | 55101 | - |
| United Hospital | Saint Paul | Minnesota | 55102 | - |
| St. Francis Cancer Center at St. Francis Medical Center | Shakopee | Minnesota | 55379 | - |
| Ridgeview Medical Center | Waconia | Minnesota | 55387 | - |
| Minnesota Oncology Hematology, PA - Woodbury | Woodbury | Minnesota | 55125 | - |
| Saint Francis Medical Center | Cape Girardeau | Missouri | 63703 | - |
| CCOP - Kansas City | Kansas City | Missouri | 64131 | - |
| North Kansas City Hospital | Kansas City | Missouri | 64116 | - |
| Parvin Radiation Oncology | Kansas City | Missouri | 64116 | - |
| Research Medical Center | Kansas City | Missouri | 64132 | - |
| Saint Luke's Cancer Institute at Saint Luke's Hospital | Kansas City | Missouri | 64111 | - |
| St. Joseph Medical Center | Kansas City | Missouri | 64114 | - |
| Truman Medical Center - Hospital Hill | Kansas City | Missouri | 64108 | - |
| Saint Luke's East - Lee's Summit | Lee's Summit | Missouri | 64086 | - |
| Liberty Hospital | Liberty | Missouri | 64068 | - |
| Heartland Regional Medical Center | Saint Joseph | Missouri | 64506 | - |
| 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 | - |
| CCOP - St. Louis-Cape Girardeau | St Louis | Missouri | 63141 | - |
| David C. Pratt Cancer Center at St. John's Mercy | St Louis | Missouri | 63141 | - |
| Midwest Hematology Oncology Group, Incorporated | St Louis | Missouri | 63109 | - |
| Saint Louis University Cancer Center | St Louis | Missouri | 63110 | - |
| Siteman Cancer Center at Barnes-Jewish Hospital - Saint Louis | St Louis | Missouri | 63110 | - |
| Billings Clinic - Downtown | Billings | Montana | 59107-7000 | - |
| CCOP - Montana Cancer Consortium | Billings | Montana | 59101 | - |
| Hematology-Oncology Centers of the Northern Rockies - Billings | Billings | Montana | 59101 | - |
| Northern Rockies Radiation Oncology Center | Billings | Montana | 59101 | - |
| St. Vincent Healthcare Cancer Care Services | Billings | Montana | 59101 | - |
| Bozeman Deaconess Cancer Center | Bozeman | Montana | 59715 | - |
| St. James Healthcare Cancer Care | Butte | Montana | 59701 | - |
| - | Great Falls | Montana | 59405 | - |
| Big Sky Oncology | Great Falls | Montana | 59405-5309 | - |
| Great Falls Clinic - Main Facility | Great Falls | Montana | 59405 | - |
| Sletten Cancer Institute at Benefis Healthcare | Great Falls | Montana | 59405 | - |
| Northern Montana Hospital | Havre | Montana | 59501 | - |
| St. Peter's Hospital | Helena | Montana | 59601 | - |
| Glacier Oncology, PLLC | Kalispell | Montana | 59901 | - |
| Kalispell Medical Oncology at KRMC | 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 | - |
| 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 | - |
| Veterans Affairs Medical Center - East Orange | East Orange | New Jersey | 07018-1095 | - |
| Hunterdon Regional Cancer Center at Hunterdon Medical Center | Flemington | New Jersey | 08822 | - |
| Fox Chase Virtua Health Cancer Program at Virtua Memorial Hospital Marlton | Marlton | New Jersey | 08053 | - |
| Cancer Institute of New Jersey at Cooper - Voorhees | Voorhees Township | New Jersey | 08043 | - |
| Fox Chase Virtua Health Cancer Program at Virtua West Jersey | Voorhees Township | New Jersey | 08043 | - |
| University of New Mexico Cancer Center | Albuquerque | New Mexico | 87131-5636 | - |
| New Mexico Cancer Care Associates | Santa Fe | New Mexico | 87505 | - |
| CCOP - Hematology-Oncology Associates of Central New York | East Syracuse | New York | 13057 | - |
| Adirondack Cancer Care - Glens Falls | Glens Falls | New York | 12801 | - |
| Monter Cancer Center of the North Shore-LIJ Health System | Lake Success | New York | 11042 | - |
| CCOP - North Shore University Hospital | Manhasset | New York | 11030 | - |
| Don Monti Comprehensive Cancer Center at North Shore University Hospital | Manhasset | New York | 11030 | - |
| Long Island Jewish Medical Center | New Hyde Park | New York | 11040 | - |
| New York Weill Cornell Cancer Center at Cornell University | New York | New York | 10021 | - |
| James P. Wilmot Cancer Center at University of Rochester Medical Center | Rochester | New York | 14642 | - |
| Stony Brook University Cancer Center | Stony Brook | New York | 11794-9446 | - |
| SUNY Upstate Medical University Hospital | Syracuse | New York | 13210 | - |
| Veterans Affairs Medical Center - Syracuse | Syracuse | New York | 13210 | - |
| Mission Hospitals - Memorial Campus | Asheville | North Carolina | 28801 | - |
| Batte Cancer Center at Northeast Medical Center | Concord | North Carolina | 28025 | - |
| Wayne Memorial Hospital, Incorporated | Goldsboro | North Carolina | 27534 | - |
| Pardee Memorial Hospital | Hendersonville | North Carolina | 28791 | - |
| Kinston Medical Specialists | Kinston | North Carolina | 28501 | - |
| Wake Forest University Comprehensive Cancer Center | Winston-Salem | North Carolina | 27157-1096 | - |
| 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 | - |
| Summa Center for Cancer Care at Akron City Hospital | Akron | Ohio | 44309-2090 | - |
| Mary Rutan Hospital | Bellefontaine | Ohio | 43311 | - |
| Wood County Oncology Center | Bowling Green | Ohio | 43402 | - |
| Adena Regional Medical Center | Chillicothe | Ohio | 45601 | - |
| MetroHealth Cancer Care Center at MetroHealth Medical Center | Cleveland | Ohio | 44109 | - |
| North Coast Cancer Care - Clyde | Clyde | Ohio | 43410 | - |
| Arthur G. James Cancer Hospital and Solove Research Institute at Ohio State University Medical Center | Columbus | Ohio | 43210-1240 | - |
| CCOP - Columbus | Columbus | Ohio | 43215 | - |
| Doctors Hospital at Ohio Health | Columbus | Ohio | 43228 | - |
| Grant Medical Center Cancer Care | Columbus | Ohio | 43215 | - |
| Mount Carmel Health - West Hospital | Columbus | Ohio | 43222 | - |
| Riverside Methodist Hospital Cancer Care | Columbus | Ohio | 43214-3998 | - |
| CCOP - Dayton | Dayton | Ohio | 45420 | - |
| David L. Rike Cancer Center at Miami Valley Hospital | Dayton | Ohio | 45409 | - |
| Good Samaritan Hospital | Dayton | Ohio | 45406 | - |
| Grandview Hospital | Dayton | Ohio | 45405 | - |
| Samaritan North Cancer Care Center | Dayton | Ohio | 45415 | - |
| Grady Memorial Hospital | Delaware | Ohio | 43015 | - |
| Hematology Oncology Center | Elyria | Ohio | 44035 | - |
| Blanchard Valley Medical Associates | Findlay | Ohio | 45840 | - |
| Middletown Regional Hospital | Franklin | Ohio | 45005-1066 | - |
| Wayne Hospital | Greenville | Ohio | 45331 | - |
| 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 | - |
| Strecker Cancer Center at Marietta Memorial Hospital | Marietta | Ohio | 45750 | - |
| Northwest Ohio Oncology Center | Maumee | Ohio | 43537-1839 | - |
| St. Luke's Hospital | Maumee | Ohio | 43537 | - |
| 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 | - |
| 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 | - |
| Mercy Hospital of Tiffin | Tiffin | Ohio | 44883 | - |
| CCOP - Toledo Community Hospital | Toledo | Ohio | 43617 | - |
| Medical University of Ohio Cancer Center | Toledo | Ohio | 43614 | - |
| St. Anne Mercy Hospital | Toledo | Ohio | 43623 | - |
| 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 St. Ann's Cancer Center | Westerville | Ohio | 43081 | - |
| Clinton Memorial Hospital | Wilmington | Ohio | 45177 | - |
| Ruth G. McMillan Cancer Center at Greene Memorial Hospital | Xenia | Ohio | 45385 | - |
| Genesis - Good Samaritan Hospital | Zanesville | Ohio | 43701 | - |
| Providence Milwaukie Hospital | Milwaukie | Oregon | 97222 | - |
| CCOP - Columbia River Oncology Program | Portland | Oregon | 97225 | - |
| Kaiser Permanente Health Care - Portland | Portland | Oregon | 97232 | - |
| Providence Cancer Center at Providence Portland Medical Center | Portland | Oregon | 97213-2967 | - |
| Providence St. Vincent Medical Center | Portland | Oregon | 97225 | - |
| Legacy Meridian Park Hospital | Tualatin | Oregon | 97062 | - |
| Geisinger Cancer Institute at Geisinger Health | Danville | Pennsylvania | 17822-0001 | - |
| Geisinger Hazleton Cancer Center | Hazleton | Pennsylvania | 18201 | - |
| Riddle Memorial Hospital Cancer Center | Media | Pennsylvania | 19063 | - |
| Joan Karnell Cancer Center at Pennsylvania Hospital | Philadelphia | Pennsylvania | 19107 | - |
| Kimmel Cancer Center at Thomas Jefferson University - Philadelphia | Philadelphia | Pennsylvania | 19107-5541 | - |
| Cancer Center at Phoenixville Hospital | Phoenixville | Pennsylvania | 19460 | - |
| 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 | - |
| Memorial Hospital of Rhode Island | Pawtucket | Rhode Island | 02860 | - |
| Hollings Cancer Center at Medical University of South Carolina | Charleston | South Carolina | 29425 | - |
| McLeod Regional Medical Center | Florence | South Carolina | 29501 | - |
| CCOP - Greenville | Greenville | South Carolina | 29615 | - |
| Mountainview Medical | Berlin Corners | Vermont | 05602 | - |
| Fletcher Allen Health Care - University Health Center Campus | Burlington | Vermont | 05401 | - |
| Fredericksburg Oncology, Incorporated | Fredericksburg | Virginia | 22401 | - |
| St. Joseph Cancer Center | Bellingham | Washington | 98225 | - |
| Olympic Hematology and Oncology | Bremerton | Washington | 98310 | - |
| Columbia Basin Hematology | Kennewick | Washington | 99336 | - |
| Harrison Poulsbo Hematology and Onocology | Poulsbo | Washington | 98370 | - |
| Group Health Central Hospital | Seattle | Washington | 98112 | - |
| 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 | - |
| Evergreen Hematology and Oncology, PS | Spokane | Washington | 99218 | - |
| Southwest Washington Medical Center Cancer Center | Vancouver | Washington | 98668 | - |
| Marshfield Clinic - Chippewa Center | Chippewa Falls | Wisconsin | 54729 | - |
| Marshfield Clinic Cancer Care at Regional Cancer Center | Eau Claire | Wisconsin | 54701 | - |
| Central Wisconsin Cancer Program at Agnesian HealthCare | Fond du Lac | Wisconsin | 54935 | - |
| Oncology Alliance, SC - Milwaukee - East | Glendale | Wisconsin | 53212-1038 | - |
| 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 | - |
| Marshfield Clinic - Marshfield Center | Marshfield | Wisconsin | 54449 | - |
| Saint Joseph's Hospital | Marshfield | Wisconsin | 54449 | - |
| Marshfield Clinic - Lakeland Center | Minocqua | Wisconsin | 54548 | - |
| Regional Cancer Center at Oconomowoc Memorial Hospital | Oconomowoc | Wisconsin | 53066 | - |
| Green Bay Oncology, Limited - Oconto Falls | Oconto Falls | Wisconsin | 54154 | - |
| Ministry Medical Group at Saint Mary's Hospital | Rhinelander | Wisconsin | 54501 | - |
| Marshfield Clinic - Indianhead Center | Rice Lake | Wisconsin | 54868 | - |
| Vince Lombardi Cancer Clinic - Sheboygan | Sheboygan | Wisconsin | 53081 | - |
| Saint Michael's Hospital Cancer Center | Stevens Point | Wisconsin | 54481 | - |
| Green Bay Oncology, Limited - Sturgeon Bay | Sturgeon Bay | Wisconsin | 54235 | - |
| Waukesha Memorial Hospital Regional Cancer Center | Waukesha | Wisconsin | 53188 | - |
| Marshfield Clinic - Weston Center | Weston | Wisconsin | 54476 | - |
| Marshfield Clinic - Wisconsin Rapids Center | Wisconsin Rapids | Wisconsin | 54494 | - |
| Welch Cancer Center at Sheridan Memorial Hospital | Sheridan | Wyoming | 82801 | - |