Cancer Organizations: J
- J. Phillip Citta Regional Cancer Center at Community Medical Center
- J. Uriach and Company
- J.C. Blair Memorial Hospital
- J.P. McCarthy Cord Stem Cell Bank
- JADO Technologies GmbH
- JFK Comprehensive Cancer Center at JFK Medical Center
- JFK Medical Center
- JR Tokai General Hospital
- Jack D. Weiler Hospital at Montefiore Medical Center - East Campus
- Jackson Clinic - Main Campus
- Jackson County Memorial Hospital
- Jackson Gynecologic Oncology, PLLC
- Jackson Hospital
- Jackson Laboratory Cancer Center
- Jackson Medical Clinic, PA
- Jackson Memorial Hospital
- Jackson Oncology Associates
- Jackson Oncology Associates, PLLC
- Jackson Park Hospital and Medical Center
- Jackson South Radiation Oncology Center
- Jackson Surgical Associates
- Jackson Surgical Group, PA
- Jacksonville Ear, Nose and Throat Associates
- Jacob and Valeria Langeloth Foundation
- Jacobi Medical Center
- Jafary Medical Clinics - Beckley
- Jafary Medical Clinics - Oakhill
- Jagiellonian University
- Jahangir Clinical Development Center Private Limited
- Jahn Ferenc Delpesti Hospital
- Jakobi Krankenhaus
- Jamaica Hospital
- James Care - Kenny Road
- James Cook University Hospital
- James Dunn Surgical Clinic, LLC
- James Graham Brown Cancer Center at Taylor Regional Hospital
- James Graham Brown Cancer Center at University of Louisville
- James M. Slater, M.D., Proton Treatment and Research Center at Loma Linda University Medical Center
- James P. Wilmot Cancer Center at University of Rochester Medical Center
- James Paget Hospital
- James R. Berenson MD, Incorporated
- James River Clinic
- Jameson Memorial Hospital - North Campus
- Jamestown Family Health Clinic
- Jamestown Medical Oncology Hematology, LLC
- Jan Palfijn Hospital
- Jane Phillips Medical Center
- Janeway Children's Health and Rehabilitation Centre
- Janssen Korea Limited
- Janssen Pharmaceutica, N.V.
- Janssen Pharmaceutical K.K.
- Janssen Research Foundation
- Janssen-Cilag Argentina
- Janssen-Cilag B.V. - Netherlands
- Janssen-Cilag G.m.b.H.
- Janssen-Cilag N.V. - Belgium
- Janssen-Ortho Incorporated
- Japan Adult Leukemia Study Group
- Japan Clinical Cancer Research Organization
- Japan Clinical Oncology Group at National Cancer Center - Tsukiji Campus
- Japan Labor Health and Welfare Organization Kumamoto Rosai Hospital
- Japan Labor Health and Welfare Organization Wakayama Rosai Hospital
- Japan Rhabdomyosarcoma Study Group
- Japan Self-Defense Forces Central Hospital
- Japan Society for Cancer Chemotherapy
- Japan and Multinational Clinical Trial Organization
- Japanese Breast Cancer Research Network
- Japanese Ministry of Health, Labour and Welfare
- Japanese Red Cross Kumamoto Hospital
- Japanese Red Cross Medical Center
- Japanese Red Cross Nagasaki Genbaku Hospital
- Japanese Red Cross Nagoya First Hospital
- Japanese Urological Cancer Research Group
- Jaslok Hospital and Research Centre
- Javelin Pharmaceuticals
- Javorszky Odon Hospital
- Jawaharlal Nehru Cancer Hospital & Research Centre
- Jeanes Hospital
- Jeff Anderson Regional Cancer Center at Jeff Anderson Regional Medical Center
- Jefferson Clinic, PC
- Jefferson County Cancer Center
- Jefferson County Hospital
- Jefferson Dermatology Associates
- Jefferson Medical College of Thomas Jefferson University
- Jefferson Oncology Group
- Jefferson Regional Medical Center
- Jefferson Regional Medical Center
- Jefferson Surgical Clinic
- Jefferson Urology Associates
- Jeffery Hale's Hospital
- Jehangir Hospital
- Jeil Pharmaceutical Company, Limited
- Jennerex Biotherapeutics Incorporated
- Jennersville Regional Hospital
- Jennie Edmundson Memorial Hospital
- Jennie Stuart Medical Center
- Jeppesen Radiation Oncology Center at Bay Regional
- Jeroen Bosch Ziekenhuis
- Jersey City Medical Center at Liberty Health
- Jersey Shore Cancer Center at Jersey Shore University Medical Center