National Cancer Institute
Cancer Information Service

Address:6116 Executive Blvd. Bethesda MD 20892
Telephone(s):1-800-4-CANCER (1-800-422-6237) (301) 435-3848
World Wide Web: http://www.cancer.gov/aboutnci/cis
TTY/TDD:800 332-8615


The National Cancer Institute's (NCI's) Cancer Information Service (CIS) is a federally funded program that was established in 1975 as an essential part of NCI's cancer education and information efforts. For over 35 years, NCI's CIS has been providing scientifically based, unbiased information to patients, their families and friends, physicians and other health professionals, and the general public about all aspects of cancer

Our information specialists are trained to answer cancer related questions by telephone (1-800-4-CANCER), LiveHelp instant messaging, and e-mail. In addition to answering questions about cancer and clinical trials, the NCI's CIS also operates the NCI's Smoking Quitline (1-877-44U-QUIT) which provides free cessation information and support to smokers who wish to quit. There is no charge or fee for our service. Service is provided in English and Spanish.


Mon-Fri 8 am - 8 pm

Fees/Methods of Payment:Free.

Services Offered:Breast CancerOvarian CancerPublic HealthSpecialized Information and Referral
Languages Offered:Spanish