Contact Us for Help
The Cancer Information Service (CIS)
Information specialists at NCI’s Cancer Information Service (CIS), NCI's contact center, are available to help answer your cancer-related questions whether you are a patient, family member or friend, health care provider, or researcher. Our service is available in English and Spanish.
We provide accurate, up-to-date, and reliable information that is easy to understand and free of charge. Our trained information specialists provide personalized responses to a range of cancer questions, including:
- tailored clinical trials searches
- cancer research
- how to find cancer treatment centers
- cancer prevention and early detection
- risk factors
- symptoms
- diagnosis and treatment
- living with cancer
- tissue donation
- questions about NCI and its programs
CIS can also help you quit smoking. The Smoking Quitline number is 1-877-44U-QUIT (1-877-448-7848). The service is available in English and Spanish, Monday through Friday, 9 a.m. to 9 p.m. ET.
Important: NCI provides cancer-related information for your general knowledge and is not a substitute for a doctor's advice.
The NCI Cancer Information Service
Questions about cancer or clinical trials? There's help available from NCI information specialists.