Sarith Keo, PA-C, MCHS

Physician Assistant
Seattle Cancer Care Alliance
Teaching Associate
University of Washington School of Medicine
Clinical expertise
Blood disorders, leukemia, myelodysplastic syndrome (MDS)
“I’m your advocate — here to empower you to take control of your health.”
— Sarith
Why do you practice medicine?

I came to the United States as a refugee when I was a young child. My family and I have always been so appreciative of the health services we received when we arrived. The people who cared for us were kind and attentive; they were pivotal in restoring our health, but also in giving us hope that we could adjust to a new country and a new life. My affinity toward medicine was born out of these experiences. They inspired me to pursue a career as a physician assistant, where I could help ease the suffering of those in need and work hard to bridge health disparities in underserved communities.

What do you want patients to know about working with you?

Your health literacy is very important to me. I believe that providers play a critical role in helping you understand your disease as well as the risks and benefits of treatment options. The more informed you are, the more confident you will feel about the decisions you’re making. I strive to build a strong, lasting relationship with you that is based on transparency: My hope is that you’ll feel comfortable coming to me with any concern or question and, in turn, you can count on me to provide jargon-free explanations about diagnoses, procedures, therapies and outcomes.

Provider background

Specialties and clinical expertise: Hematologic malignancies

Blood disorders

I am a certified physician assistant who specializes in caring for patients with malignant and non-malignant blood disorders. During my training, I received the Richard Layton Underserved Award for providing care in resource-strapped communities across the state. One of the ways I engage in continuous learning is to teach clinical skills to first-year physician assistant students at MEDEX Northwest. In addition to teaching and providing hands-on care, I also support research efforts in the areas of thrombosis and sickle cell disease through SCCA, Bloodworks NW and UW Medicine.

Diseases treated

Education, experience and certifications
Undergraduate Degree
Whitman College
Medical Degree
University of Washington
Board Certification
Physician Assistant, 2015, National Commission on Certification of Physician Assistants


“Sarith is the most efficient provider I have ever worked with, and he is always encouraging me. He taught me that you can’t do everything, so you need to piece things together and address tasks one at a time. He’s very efficient, thorough and a hard worker.”
— Oyebimpe O. Adesina, MD, MS


Clinical trials

We make promising new treatments available to you through studies called clinical trials led by SCCA doctors. Many of these trials at SCCA 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.

Your care team

At SCCA, you receive care from a team of providers with extensive experience in your disease. Your team includes doctors, a team 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.
Terry B. Gernsheimer, MD
Hematology, bleeding disorders, clotting disorders, platelet abnormalities, Thrombocytopenia
David A. Garcia, MD
Hematology, bleeding disorders, clotting disorders
Registered nurse (RN)
Your nurse manages your care alongside your physician and assists with care procedures and treatments.
Team coordinator (TC)
Your team coordinator works closely with you and your physician and serves as your scheduler.


SCCA 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.