Forgot your password?


To create an account to access your personal
My Account OR Dashboard, click REGISTER below.


New Provider Enrollment

To access on-line enrollment / new provider package, click ENROLL below.



Message from the Chair

Samuel Ryu, MD
Samuel Ryu, MD
Professor and Chair, Department of Radiation Oncology
Deputy Director of Clinical Affairs,
Stony Brook University Cancer Center

Stony Brook Radiation Oncology is the clinical practice of the Department of Radiation Oncology at the Stony Brook School of Medicine and Stony Brook Medicine. We are committed to fulfilling Stony Brook's mission of excellence in patient care, education, research, and community service. We encourage you to browse and review our website, where you will find up-to-date information about our clinical services and academic programs. Together, our specialized services contribute to the unique range and top quality of health care provided at Stony Brook Medicine.

Samuel Ryu, MD

Click here for a listing of all providers in the department

Clinical Services


The practice works to carry out the missions of the department which are:

To use state-of-the-art methods to treat patients in a respectful, compassionate and effective manner; to educate healthcare professionals in the practice of radiation oncology; to pursue knowledge about the practice and science of radiation oncology and to develop innovative approaches in its application; and to serve as a regional resource for education about radiation oncology and the diseases it treats. In accomplishing these missions, the department supports Stony Brook Medicine's strategic objective to become the regional destination institution for cancer services in Suffolk County.

Clinical services provided are evaluation and management services for cancer patients and related radiotherapy and supportive procedures. The radiotherapy procedures available include:
Physican Directory

Important Note:

The Stony Brook Medicine University Physicians website is primarily an informational and educational resource. It should not be used in place of medical advice and recommendations you receive from your health care provider. If you have, or suspect that you have a medical problem or condition, please seek the advice of your health care provider.

Stony Brook Medicine University Physicians provides marketing advice and consultation to the clinical Faculty associated with the University Faculty Practice Corporations (UFPCs). It does not provide medical care directly or indirectly nor does it oversee, direct, manage or supervise the medical care provided by any of the individual Practices. The individual Practices are responsible for the medical care each Practice provides to its patients. Please note that the Practices listed below are separate University Faculty Practice Corporations (UFPCs).