Our Phoenix Gastrointestinal Cancer Experts
When it comes to gastrointestinal cancer care, speed to expertise matters. We’re answering the call at the City of Hope® Phoenix Gastrointestinal (GI) Cancer Center, where our singular focus on GI cancer means more options and more hope, today, for patients in Arizona.
Gastrointestinal (GI) Surgery Team
Internationally renowned liver and pancreas surgeon Gagandeep “Gaugs” Singh, M.D., F.A.C.S., is Chief of Surgical Oncology and Director of Surgical Services at City of Hope Cancer Center Phoenix.
David T. Luyimbazi, M.D., is a surgical oncologist and attending surgeon at City of Hope® Cancer Center Phoenix.
Dr. Andrew Kassir is a colorectal surgeon at City of Hope® Phoenix.
Medical Oncology Team
The integrative approach to cancer treatment is what attracted medical oncologist Dr. Sagun Shrestha to City of Hope.
Tania Cortas, MD, CPE, joined City of Hope Cancer Center Phoenix in November 2023 as a Medical Oncologist, primarily serving patients at City of Hope Cancer Center Scottsdale.
Firas Shadad, M.D., is an oncologist and an Assistant Clinical Professor in the Department of Medical Oncology & Therapeutics Research at City of Hope in Arizona.
As a medical oncologist at City of Hope Cancer Center Phoenix, Khaled Abouelezz, MD., M.Ed., provides innovative clinical care for patients with a range of gastrointestinal cancers, including esophageal, pancreatic, biliary, colon and anal cancer.
Medical oncologist Arjun Gupta, M.D., F.A.S.C.O., works closely with patients at City of Hope® Cancer Center Phoenix who have been diagnosed with a wide range of gastrointestinal cancers, helping them find innovative treatment options for their disease and strategies to manage the side effects and
Iyad Hamarneh, M.D., is a board-certified medical oncologist and hematologist at City of Hope® Cancer Center Prescott, where he treats patients with breast cancer, lung cancer, melanoma, multiple myeloma and many other cancer types.
Allan V. Espinosa-Morazán, M.D., is a board-certified, bilingual hematologist-oncologist who provides compassionate, comprehensive care to patients receiving treatment for a wide range of cancer types at City of Hope® Cancer Center Prescott in Arizona.
Christopher Chen, M.D., M.B.A., joined City of Hope Phoenix in July 2023 as a medical oncologist and hematologist at City of Hope Gilbert Outpatient Care Center. Dr. Chen has expertise in treating patients with all types and stages of cancers and blood disorders.
Radiation Oncology Team
Jonathan Moayyad, MD, joined City of Hope Phoenix, Arizona and the Outpatient Care Center in North Phoenix in May 2023 as a Radiation Oncologist.
“The dedication here not only to cancer medicine but also to quality cancer care is a rare gift,” says Dr. Marnee Spierer, a radiation oncologist and Chief of Radiation Oncology at City of Hope Phoenix. “I wanted to be part of the effort.”
Interventional Radiology Team
Dr. Aaron Wittenberg is an Interventional Radiologist at City of Hope Cancer Center Phoenix.
Erik Ray, M.D., is an interventional radiologist with City of Hope in Phoenix. Learn about his background and experience treating cancer patients.
With nearly 20 years’ experience in the field of radiology, David J. Weitz, M.D., works closely with patients and their multidisciplinary care teams at City of Hope® Cancer Center Phoenix to accurately diagnose a wide range of cancers using advanced techniques, such as ultrasound and magnetic
GI Cancer Types We Treat
Gastrointestinal cancer takes many forms, from colorectal cancer, one of the most common diagnosed in Arizona and across the United States, to rarer diseases like neuroendocrine tumors (NETs).
No matter your cancer type, you can expect leading-edge screening and diagnostic tools to help detect gastrointestinal cancers early, along with innovative treatment options for all GI-related cancers, including:
- Colorectal cancer
- Pancreatic cancer
- Liver cancer
- Stomach cancer
- Esophageal cancer
- Neuroendocrine tumors
- Anal cancer
- Appendix cancer
Personalized GI Cancer Care in Phoenix
Whether your diagnosis is early-stage, rare or complex, our GI Cancer Center serves as a powerful gateway to the personalized treatment options and next-level specialization patients deserve.
We cover the bases of comprehensive gastrointestinal cancer care — from prevention and early detection to treatment and survivorship — through pioneering diagnostic technologies, sophisticated surgical procedures and innovative therapies, including:
- Surgery
- Chemotherapy
- Immunotherapy
- Targeted therapy
- Radiation therapy
- Interventional gastroenterology
- Interventional radiology
- Genetic testing
- Genomic testing
What Sets Our Arizona GI Cancer Program Apart?
Right here in Arizona, City of Hope is pushing the boundaries of what’s possible in gastrointestinal cancer through our GI Cancer Center. Experience the difference:
Lifesaving speed to care, with same-day GI screening, consultations in as little as 24 hours and treatment plans within five to seven days, depending on patient’s insurance coverage.
Disease-specific team under one roof, including board-certified surgical oncologists, medical oncologists, radiation oncologists, interventional gastroenterologists and supportive care clinicians, empowered with innovative GI diagnostic technologies, treatments and clinical trials
Rare and advanced GI cancer expertise, through offerings like our Neuroendocrine Tumor Clinical Program for patients with NETs and hepatic artery infusion (HAI) therapy for patients with advanced colorectal cancer that has spread to the liver — a therapy offered by fewer than 1% of hospitals across the nation
Pioneering use of AI through GI Genius™, an artificial intelligence (AI)-enabled system that aids endoscopists in detecting colonic mucosal lesions (such as polyps and adenomas) in real time during standard white-light endoscopy examinations
Strength of our coast-to-coast clinical network, where experts at City of Hope Phoenix and across the City of Hope system collaborate to deliver groundbreaking research and lifesaving care, like never before
Make an Appointment with Our GI Cancer Team
Managing the details of gastrointestinal cancer care can be overwhelming. You don’t have to do it alone. We’re available 24/7 to help handle the details, from insurance verification and medical records collection to appointment scheduling and arrangements for travel and lodging. Whether you’re newly diagnosed, seeking a second opinion or interested in cancer screening, call us at (877) 524-4673 to make an appointment.