Anchorage: (907) 276-2400
Mat-Su Valley: (907) 745-2900
Gamma Knife: (907) 276-5555

Mat-Su Valley Team

Meet Our Team of Dedicated Experts

We believe that the best cancer care is coordinated care. That’s why we have gathered together a team of four highly trained, board certified medical professionals who will work together to plan and carry out your treatment.

Radiation Oncology Physician- Valley

John S. Yordy, M.D., Ph.D.

Dr. John S. Yordy, MD, PhD

Dr. Yordy is a graduate of the Medical Scientist Training Program at the Medical University of South Carolina, where he earned his M.D. and Ph.D. degrees. Following the completion of residency in Radiation Oncology at MD Anderson Cancer Center in Houston, Dr. Yordy joined the faculty at the University of Texas Southwestern Medical Center in Dallas, Texas, working as a physician scientist. He worked in the clinic as well as directed a translational research lab testing new drugs that could be combined with radiation therapy to make radiation treatments more effective.

Prior to medical and graduate school, Dr. Yordy was able to visit and experience many different parts of the world, as well as work in several interesting jobs.

"I traveled to Alaska three times before moving permanently to the Valley. I always wanted to live in Alaska and I am honored and feel fortunate to have joined Dr. Chung and Dr. Settle in delivering high-quality radiation therapy to anyone in need of this treatment. I look forward to a long-standing relationship with the community and treating patients with the highest level of care. From the time I was a child, I have always felt a calling to serve others. I am thrilled to be working in the Valley, continuing to follow my calling, and helping patients here that need radiation therapy." 


  • Board Certified in Radiation Oncology by the American Board of Radiology (ABR).
  • Member of the American Society for Therapeutic Radiology and Oncology (ASTRO), American Society of Clinical Oncology (ASCO), American College of Radiology (ACR), International Association for the Study of Lung Cancer (IASLC), and American Radium Society (ARS).


Radiation Therapists

  • Dan Rivera, RTT
  • Alysia Quinlan, RTT
  • Paul Frechette, RTT- Valley and Anchorage

Oncology Nursing Staff

  • Carol Kinslow, RN
  • Ana Maldonado, CMA
  • Brisa Alegria, RD, LD- Valley and Anchorage Dietician

Patient Care Coordinator

  • Suzanne Willson

Practice Administrator

  • Kari Disbrow

Marketing Director

  • Diana Arthur

Anchorage & Valley Radiation Therapy Centers

Phone: 907.276.2400
Toll-Free: 877.276.4655
Fax: 907.276.4888
Office Hours: Mon-Fri, 8am–5:30pm
[Map & Directions]

Phone: 907.745.2900
Toll-Free: 877.276.4655
Fax: 907.745.2999
Office Hours: Mon-Fri, 8am–5:00pm
[Map & Directions]