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        • About Us

        • Cancer Nation is the oldest cancer survivor-led non-profit organization in America. We advocate for quality cancer care for all touched by cancer.

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        • What is Advocacy?Learn about the different types of cancer advocacy, from personal advocacy to public interest advocacy.
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    • Advocate SpotlightEach month, Cancer Nation highlights a cancer survivorship advocate, sharing their story and the work they do in their communities.
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        • Public policy is government action, in the form of legislation, regulation, funding, and other actions. Public policy affects people with cancer and the cancer care system in many ways.

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        • Quality Cancer CareQuality cancer care is essential for patients. Learn how Cancer Nation and others define quality.
        • Access to CareCancer Nation believes cancer care and clinical trials should be affordable and accessible to everyone.
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        • Protecting Access to Medicaid for Cancer Survivors
        • Comprehensive Cancer Survivorship Act (CCSA)The CCSA is a large comprehensive bill introduced in Congress that aims to improve quality of care in all stages of a diagnosis.
        • Cancer Care Planning and Communications Act (CCPCA)CCPCA is a bill that would provide a billable Medicare service code for cancer care planning.
        • DIEP Flap AccessCancer Nation advocates for protection of access to DIEP Flap Breast Reconstruction Surgery for all breast cancer survivors.
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        • Whether you’re new to cancer advocacy or already have experience as an advocate, there are numerous ways you can get involved with Cancer Nation.

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        • Cancer Nation conducts an annual State of Survivorship Survey, in partnership with Edge Research, to explore the cancer patient and survivor journey. This study captures a range of perspectives to better understand how Cancer Nation can support its mission to advocate for quality cancer care for all.

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        • 2025 Survey Report
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        • 2023 Survey ReportThe 2023 Survey explored the caregiver experience for the first time, and features new data on the effect of cancer treatment on employment.
        • 2022 Survey ReportThe 2022 Survey found significant disparities in cancer care that impact people of color, young adults, women, and those with metastatic cancer, at higher rates.
        • 2021 Survey ReportThe 2021 Survey demonstrated that when patients receive quality care, have excellent support, and have financial resources, they are more likely to have positive outcomes.
        • 2020 Survey ReportIn the 2020 Survey, survivors reported that their care team is not helpful at addressing some common side effects of their cancer such as fatigue, anxiety, and depression.
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        • The Cancer Survivorship Checklist is designed to be a simple, straightforward tool patients and caregivers can use as a guide for information critical to their care wherever they are on the cancer care continuum.

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        • Cancer Nation provides a wide variety of resources for patients, caregivers, and health care professionals.

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NCCS is now Cancer Nation. Find out more about our next chapter.    Join Us

Cancer Nation
Leadership Academy Mentors

Who better to shape cancer care than the people living it and the people working within it?

The Cancer Nation Leadership Academy is honored to have Mary S. McCabe, RN, MA and Susan Leigh, BSN, RM serve as Leadership Academy Mentors. They both have extensive knowledge of cancer survivorship within the cancer community. Mary and Susan offer guidance, support and fellowship that has a lasting impact on their mentees.

Mary S. McCabe, RN, MAMary S. McCabe, RN, MA

Mary S. McCabe, RN, MA, is currently a consultant in Cancer Survivorship and Medical Ethics. She is the past Clinical Director of the Cancer Survivorship Center at Memorial Sloan-Kettering Cancer Center (MSK). From 2003 through 2016, she was responsible for developing and implementing a center-wide program and services for cancer survivors focused on research, clinical care, professional training and education. She was also a faculty member in the Division of Medical Ethics at the Cornell Weill Medical College and Chair of the MSK Ethics Committee.

A graduate of Trinity College, Emory University, and Catholic University, she was previously the nursing director at the Lombardi Cancer Center, Georgetown University in Washington, DC, and held several senior positions at the National Cancer Institute (NCI) before joining MSK. Mary is currently a member of the Survivorship Advisory Committee at the Lombardi Cancer Center, Georgetown University, a member of the boards of Children’s Cancer Cause and the Nell Hodgson Woodruff School of Nursing, Emory University, and advisor to the National Coalition for Cancer Survivorship.

She has served on many committees, including the Committee on Improving the Quality of Cancer Care and Guiding Cancer Control: A Path to Transformation at the National Academy of Medicine, the Survivorship Steering Committee of the American Cancer Society, the National Comprehensive Cancer Network Survivorship Panel, the NCI Clinical Trials and Translational Research Advisory Committee, and is the past chair of the American Society of Clinical Oncology (ASCO) Survivorship Committee.

Mary is the author of over 130 scientific publications and has received numerous national awards. These include the American Cancer Society Merit Award, Oncology Nursing Society Leadership Award, NIH Outstanding Performance Award, NIH Director’s Award, the Outstanding Alumnae Award, Emory University School of Nursing, and the Leonard Rosen Memorial Research Award given by Children’s Cause for excellence in Cancer Survivorship research. In 2020, she received the Emory University President’s Medal, the highest award given to an Emory alumnus.

Currently, Mary serves as a cancer survivor advisor and navigator for immigration groups working to resettle families in the DC area.

Mary S. McCabe, RN, MAMary S. McCabe, RN, MA

Mary S. McCabe, RN, MA, is currently a consultant in Cancer Survivorship and Medical Ethics. She is the past Clinical Director of the Cancer Survivorship Center at Memorial Sloan-Kettering Cancer Center (MSK). From 2003 through 2016, she was responsible for developing and implementing a center-wide program and services for cancer survivors focused on research, clinical care, professional training and education. She was also a faculty member in the Division of Medical Ethics at the Cornell Weill Medical College and Chair of the MSK Ethics Committee.

A graduate of Trinity College, Emory University, and Catholic University, she was previously the nursing director at the Lombardi Cancer Center, Georgetown University in Washington, DC, and held several senior positions at the National Cancer Institute (NCI) before joining MSK. Mary is currently a member of the Survivorship Advisory Committee at the Lombardi Cancer Center, Georgetown University, a member of the boards of Children’s Cancer Cause and the Nell Hodgson Woodruff School of Nursing, Emory University, and advisor to the National Coalition for Cancer Survivorship.

She has served on many committees, including the Committee on Improving the Quality of Cancer Care and Guiding Cancer Control: A Path to Transformation at the National Academy of Medicine, the Survivorship Steering Committee of the American Cancer Society, the National Comprehensive Cancer Network Survivorship Panel, the NCI Clinical Trials and Translational Research Advisory Committee, and is the past chair of the American Society of Clinical Oncology (ASCO) Survivorship Committee.

Mary is the author of over 130 scientific publications and has received numerous national awards. These include the American Cancer Society Merit Award, Oncology Nursing Society Leadership Award, NIH Outstanding Performance Award, NIH Director’s Award, the Outstanding Alumnae Award, Emory University School of Nursing, and the Leonard Rosen Memorial Research Award given by Children’s Cause for excellence in Cancer Survivorship research. In 2020, she received the Emory University President’s Medal, the highest award given to an Emory alumnus.

Currently, Mary serves as a cancer survivor advisor and navigator for immigration groups working to resettle families in the DC area.

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Susan Leigh, BSN, RN

Susan Leigh, BSN, RN

After receiving her degree in nursing from the University of Arizona in Tucson, Susan Leigh served as a Lieutenant in the U.S. Army and completed a tour of duty in the Mekong Delta, Vietnam, in 1971.  Soon after her return from Vietnam, she was diagnosed with Hodgkin lymphoma and was treated with some of the earliest forms of chemotherapy and radiation. This experience influenced her decision to become an oncology nurse.

For the past three decades, Susan has focused her efforts on national advocacy work with special emphasis on long-term and late effects of cancer treatment.  Her most cherished involvement has been with the National Coalition for Cancer Survivorship (NCCS) as a founding member and past president and now as a member of the steering committee for the Cancer Policy & Advocacy Team (CPAT).  She has also been actively involved with many professional organizations, including the Oncology Nursing Society and the National Cancer Institute.

Since 2010, Susan has been working as a survivorship consultant and educator with Arizona Oncology in Tucson. Besides surviving Hodgkin lymphoma, she has also been treated for breast and bladder cancers and is currently dealing with major treatment-related cardiac issues.

From Shadows to Life Advocate Spotlight

Susan Leigh, BSN, RN

Susan Leigh, BSN, RN

After receiving her degree in nursing from the University of Arizona in Tucson, Susan Leigh served as a Lieutenant in the U.S. Army and completed a tour of duty in the Mekong Delta, Vietnam, in 1971.  Soon after her return from Vietnam, she was diagnosed with Hodgkin lymphoma and was treated with some of the earliest forms of chemotherapy and radiation. This experience influenced her decision to become an oncology nurse.

For the past three decades, Susan has focused her efforts on national advocacy work with special emphasis on long-term and late effects of cancer treatment.  Her most cherished involvement has been with the National Coalition for Cancer Survivorship (NCCS) as a founding member and past president and now as a member of the steering committee for the Cancer Policy & Advocacy Team (CPAT).  She has also been actively involved with many professional organizations, including the Oncology Nursing Society and the National Cancer Institute.

Since 2010, Susan has been working as a survivorship consultant and educator with Arizona Oncology in Tucson. Besides surviving Hodgkin lymphoma, she has also been treated for breast and bladder cancers and is currently dealing with major treatment-related cardiac issues.

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From Shadows to Life Advocate Spotlight

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Cancer Nation Statement: Medicaid Work Requirements Will Unfairly Burden Cancer Survivors

June 4, 2026
Cancer Nation strongly supports a health care system free of waste, fraud, and abuse. Health care resources must be directed to delivery…
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Webinar – Understanding Blood-Based Testing in Cancer Care

May 29, 2026
Cancer Nation's Webinar Series presents a clear, practical conversation about advances in blood-based testing and how they're shaping…
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Remembering Susie Leigh: A Founder, a Force, and a Friend

May 28, 2026
Susan (Susie) Leigh, BSN, RN-Retired — one of the founding members of Cancer Nation, a five-time cancer survivor, and one of the…
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Harmar Brereton, MD

Founder
Northeast Regional Cancer Institute

 

“Perhaps one of the most impactful collaborations in Dr. Brereton’s extraordinary career remains his early work and long friendship with Ellen Stovall. Through him, and in turn through the thousands of lives he has touched, Ellen’s work continues, and her mission lives on.”

—Karen M. Saunders
President, Northeast Regional Cancer Institute