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Cancer Information Service


If you have a question about cancer, call and speak with a trained specialist at NCI's Cancer Information Service (CIS). The CIS operates a nationwide toll-free telephone hotline Monday-Friday, 9:00 a.m. to 4:30 p.m. local time. Their number is 1-800-4-CANCER (1-800-422-6237).

People with TTY equipment should dial 1-800-332-8615.