Emily S. Weg, MD

Emily S. Weg, MD

Emily S. Weg, MD

  • Associate Medical Director, Fred Hutchinson Cancer Center - Proton Therapy, Fred Hutch
  • Physician, Fred Hutch
  • Assistant Professor, Department of Radiation Oncology, University of Washington School of Medicine

Radiation Oncology

“The ability to care for patients with cancer is a privilege that I am grateful for every day.”

— Dr. Weg

What's your favorite memory of working with a patient?

During my medical training, I took care of a patient with cancer who was terminally ill. A high school football coach, he had all of us on his care team calling him “Coach.” Throughout his experience, he was hospitalized frequently, and during that time we grew quite close; he became a coach of sorts for me as well. His positive attitude and generous spirit in the face of so many setbacks were inspirational. He managed to greet his constant stream of visitors with warmth despite his daily challenges. Before he passed away, he gave me a pin in the shape of an angel. I wore it on my collar throughout the rest of my training to remind me of Coach and why I went into oncology. The ability to care for patients with cancer is a privilege that I am grateful for every day.

What’s it like to work with you?

I went into medical school knowing that I wanted to help guide people through difficult moments. Throughout my training, I was always drawn toward working with patients who have cancer. Practicing radiation oncology allows me to help people in very tangible ways, whether that means providing palliative care or working toward a cure. My priorities are sharing my clinical expertise, making data-driven decisions and learning about the person behind each patient. I believe no case is cookie-cutter; focusing on the nuances of your situation enables me to customize your care.

Provider Background

Area of clinical practice

Genitourinary cancers

Genitourinary cancers

I am a board-certified radiation oncologist who specializes in the care of patients with genitourinary cancers, such as prostate cancer. These diseases affect the male urinary tract and reproductive system. An important part of individualizing care in radiation oncology is being proficient with advanced technological tools and approaches and knowing when to use each one. My expertise spans stereotactic radiosurgery, proton therapy, brachytherapy and image-guided intensity-modulated techniques, among others.

In addition to providing clinical care, I study how to improve the effectiveness of radiation treatment while minimizing side effects. Another area of interest is cancer genomics; understanding how a tumor’s DNA drives its behavior can help us tailor a person’s treatment more precisely. The goal of my research is to stay a step ahead of cancer in order to maximize the quality and quantity of each patient’s life.

Diseases Treated



Education, Experience and Certifications

Undergraduate Degree
Columbia University

Medical Degree
Icahn School of Medicine at Mount Sinai

Memorial Sloan Kettering Cancer Center, Radiation Oncology


All news
Wildlife photographer Kevin Murphy chooses proton therapy for prostate cancer Kevin watched and waited seven years with low-grade prostate cancer. When it was time for treatment, he chose proton therapy. August 23, 2023
Research leads Seattle geologist to proton therapy He decided proton therapy was right for his prostate cancer. November 10, 2022

Clinical Trials

We make promising new treatments available to you through studies called clinical trials led by Fred Hutch physicians. Many of these trials at Fred Hutch have led to FDA-approved treatments and have improved standards of care globally. Together, you and your physician can decide if a study is right for you.

View Clinical Trials


Many of our Fred Hutch physicians conduct ongoing research to improve standards of patient care. Their work is evaluated by other doctors and selected for publication to the United States National Library of Medicine, the largest medical library in the world. See scientific papers this Fred Hutch physician has written.

View Dr. Weg's Publications

Your Care Team

At Fred Hutch, you receive care from a team of providers with extensive experience in your disease. Your team includes physicians, a patient care coordinator, a registered nurse, an advanced practice provider and others, based on your needs. You also have access to experts like registered dieticians, social workers, acupuncturists, psychiatrists and more who specialize in supporting people with cancer or blood disorders.


Fred Hutch accepts most national private health insurance plans as well as Medicare. We also accept Medicaid for people from Washington, Alaska, Montana and Idaho. We are working to ensure that everyone, no matter what their financial situation, has access to the care they need.

For the Media

The Media Relations team at Fred Hutch is available to assist members of the news media who would like to arrange interviews with providers.

Email media@fredhutch.org or call 206.667.2210