Adam Diehl, MD

Adam Diehl, MD

Adam Diehl, MD

  • Physician, EvergreenHealth
  • Clinical Assistant Professor, University of Washington School of Medicine

Medical Oncology



“I enjoy partnering with patients to get them through the difficult times that come along with cancer. It's rewarding to build these long term relationships with patients and see them through the months or years, becoming part of their healthcare family.”

— Dr. Diehl

Why did you decide to specialize in your treatment focus?

I wanted to be in a field where there was hope on the horizon. Hematology oncology is a challenging area of practice, but the research in this field is generating innovation in the treatment of the disease. With the continuous new developments, I'm excited to be able to offer new and better treatments for my patients.

How would you describe your approach to care?

I see myself not just as a clinician, but also as a patient guide. My goal is to share in their successes when things go well, and guide them through challenges when things get tough. It's these meaningful interactions with patients that I find most satisfying.

Of all the cancer treatment centers, why should a patient trust Fred Hutch and your team with their care?

Everyone in the Fred Hutch system is working together as a community providing both standard care and the latest treatments to ensure patients can live their best life. At Fred Hutch Evergreen, my goal is to bring the expertise developed through the research programs at Fred Hutch to the community so people don't have to commute to Seattle to take part in clinical trials and receive other leading-edge treatments.

Provider Background

Specialty: Medical Oncology

Community Oncology

Our mission is to provide patients with the highest quality, personalized care closer to home. As part of Fred Hutch, our community oncologists offer patients multidisciplinary tumor board opinions, clinical trials and expertise in treating a variety of cancers.



Education, experience and certifications

Medical Degree

Johns Hopkins School of Medicine

Residency, Internal Medicine

Johns Hopkins School of Medicine

Fellowship, Hematology

University of Washington Medical School

Board Certifications

Hematology, Oncology, 2021, American Board of Internal Medicine    

Clinical Trials

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

Find a Clinical Trial Led by Dr. Diehl


Many of our Fred Hutch doctors 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 provider has written.

View Dr. Diehl'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 doctors, a patient care coordinator, a registered nurse, an advanced practice provider and others, based on your needs. You also have access to experts like nutritionists, 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.