The Passing of a Pioneer
A Life of Dedication and Discovery
Dr. Warner’s journey began with a remarkable academic path — completing his undergraduate studies at Oberlin College in just three years, followed by earning his MD from the University of Cincinnati. His passion for medicine led him to Mount Sinai Hospital in New York City, where he specialized in internal medicine and gastroenterology, and later pursued an NIH (National Institutes of Health) research fellowship.
During his service as a captain in the U.S. Air Force Medical Corps, Dr. Warner’s keen insight led him to identify and report the first two known cases of carcinoid syndrome caused by lung tumors — a discovery that would shape the future of neuroendocrine oncology. His pioneering research and hundreds of lectures and publications have left an indelible mark on the field, inspiring generations of physicians and scientists.
A Compassionate Healer and Teacher
Returning to Mount Sinai after his military service, Dr. Warner became a cherished faculty member and a guiding light for countless students and colleagues. His background in gastroenterology gave him a unique perspective on neuroendocrine tumors (NETs), allowing him to see what others might have missed and to care for thousands of patients with rare cancers.
Dr. Warner’s warmth, empathy, and unwavering commitment to his patients were the hallmarks of his career. He listened deeply, offered hope, and treated every individual with dignity and respect. His patients and their families often spoke of his kindness and the comfort he brought during their most challenging times.
Building a Legacy of Hope
In 1968, Dr. Warner founded the Carcinoid Cancer Foundation, creating a beacon of support and information for those affected by NETs. He was instrumental in establishing the North American Neuroendocrine Society (NANETS) in 2006 and was appointed Professor of Medicine (gastroenterology) at The Icahn School of Medicine at Mount Sinai in 2007. Through Sinai’s Center for Carcinoid and Related Neuroendocrine Tumors and the Serotonin Research Laboratory, he fostered innovation and collaboration that continue to benefit patients worldwide.
Remembering Dr. Warner
Dr. Warner’s life was defined by his compassion, curiosity, and tireless advocacy for patients, caregivers, and the entire NET community. His legacy lives on in the lives he touched, the knowledge he shared, and the hope he inspired. He will be deeply missed by his family, friends, colleagues, patients, and all who had the privilege of knowing him.
As we honor Dr. Warner’s extraordinary life, we are reminded that his work continues through the foundation he built and the community he nurtured. The family kindly requests that memorial donations be made to the Neuroendocrine Cancer Foundation (ncf.net) here, so that Dr. Warner’s vision of a brighter future for NET patients may endure.


The Support Line provides guidance, resources, and referrals to NET patients or their loved ones. The collaboration allows both organizations to leverage each other’s complementary programs and expertise to help NET patients and caregivers around the world.
As one of the most recognized NET-related organizations in the US, CCF receives many inquiries for support from patients and caregivers every year. NCF, with its close ties to the patient and healthcare community, is poised to provide the best support possible.
The NCF Support Line provides support to those contacting CCF in addition to direct inquiries. The Support Line is a comprehensive addition to the current range of NET educational programs, advocacy tools, and support groups provided by NCF.
To receive support, patients or caregivers can fill out a questionnaire available at www.ncf.net/supportline. The answers help NCF direct the patient or caregiver to the most relevant informational resources, introduce them to others with a similar diagnosis or treatment plan, or NET experts specializing in their area of inquiry.
Luncheon with the Experts Continues
Luncheon with the Experts via Facebook LIVE and YouTube continues on June 19th from 12:00pm til 1:00pm Eastern Time.
Dr. Daniel M. Halperin is a physician on the gastrointestinal oncology team, an associate professor, and serves as vice chair for clinical affairs in the Department of Hematology and Medical Oncology at Winship Cancer Institute of Emory University School of Medicine.
As vice chair of clinical affairs, he works with the department chair and other leaders to plan, communicate, and execute Winship strategies and organizational goals in the clinical arena, and to support and direct the performance of physician faculty members in the department. Dr. Halperin also serves on the Board of Scientific Advisors of the NET Research Foundation, the Scientific Advisory Committee of the Healing NET Foundation and the Board of Directors and Symposium Committee of the North American Neuroendocrine Tumor Society.
If you have any non-case-specific questions, you are welcome to pose them during the presentation and our guests will try to answer them LIVE! This Facebook Live event will be hosted by B. Rain Bennett a longtime CCF filmmaker and dear friend of the NET community. We hope you can join us! #LetsTalkAboutNETs
If you do not have Facebook, we will also be streaming LIVE onYouTube. Please visit our YouTube channel for past shows you may have missed or that you may want to watch again. To receive notifications of all new videos on our YouTube channel, CLICK LIKE, SUBSCRIBE and HIT THE BELL to receive notifications each time a new video is uploaded.
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LACNETS & NANETS COLLABORATION
RARE DISEASE DAY 2025
Raising awareness and generating change for the 300 million people worldwide living with a rare disease, their families and caregivers. Visit https://www.rarediseaseday.org/ to learn how you can participate.
Congratulations to Lisa Yen, Director of Programs and Outreach at LACNETS, who was recently featured in ShoutOutLA.
“Hi Lisa, let’s start by talking about what inspires you?
Helping others
Ever since I was a little kid, I wanted to make a difference in the world. At the age of 16, I felt called to be a nurse. I loved working as a cardiac ICU nurse for a couple years and helping people recover after suffering a heart attack or recovering from open heart surgery. I then spent 2 months in a hospital in rural Kenya when I witnessed the challenges of accessing even the most basic medical care. This prompted me to return to school to become a nurse practitioner. I absolutely loved being a NP hospitalist. I loved being able to make a meaningful impact on those who were critically ill. Unfortunately, my world was turned upside down when my husband was suddenly and unexpectedly diagnosed with advanced neuroendocrine tumor (NET or neuroendocrine cancer). While I continue to support him in our journey with this uncommon cancer, I am inspired to help others like him to ease their suffering and help them be able to thrive despite living with cancer.”
Alira Health Partners with CCF and LACNETS to Help NET Cancer Patients Take Control of Their Healthcare Journey
Partnership Empowers Patients with Mobile Platform Providing Critical Patient Support
Framingham, Mass., June 29, 2023 — Alira Health, a global advisory and clinical research firm whose mission is to humanize healthcare and life sciences, announced today the addition of the Learn Advocate Connect Neuroendocrine Tumor Society (LACNETS) to accompany its partnership with the Carcinoid Cancer Foundation (CCF) in supporting those living with NET.
CCF Turns 55!
A Rare Disease Day Story from a NET Patient!
Dr. Katie Dexter is a PCD and Lung Carcinoid patient. This is her story of navigating not one, but TWO, rare diseases. Watch interview by Rain Bennett a longtime CCF filmmaker and dear friend of the NET community. Watch here.
Neuroendocrine Tumor Information in 10 Languages
Did you know that the International Neuroendocrine Cancer Alliance (INCA), has free, NET info packets in 10 languages? Click here to select your language and download the factsheets: https://incalliance.org/net-info-packs/. The Carcinoid Cancer Foundation is proud to be a founding member of INCA.
CCF Infographic: 6 Questions to Ask Your Doctor
Have you or someone you love been diagnosed with a neuroendocrine tumor or carcinoid cancer? It can feel like a daunting task to figure out next steps and doctor appointments may be overwhelming. You can help yourself or support a loved-one by learning about the disease and preparing yourself for doctor visits. The first visit may be the most challenging, so It’s important to arm yourself with relevant questions. Here we provide you with six questions, specific to neuroendocrine tumors, to ask your doctor. Click here to download the infographic.