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

Anchorage 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.

What you should know about treatment at ARTC:

  • Your treatments will be given by qualified physicians and staff.
  • We have the equipment you need to receive safe and up-to-date cancer treatment.
  • Our facility is accredited by the American College of Radiology (ACR)

Why should you have your treatments at an accredited facility?

We know a diagnosis of cancer is usually a life-changing experience for patients and their loved ones. As you seek treatment, you need to know that they are receiving safe and appropriate care. To achieve ACR accreditation, our facility’s personnel qualifications, equipment requirements quality assurance and quality control procedures have gone through a rigorous review process and have met specific qualifications. It’s important for patients to know that every aspect of the ACR accreditation process is overseen by board-certified, expert radiation oncologists and medical physicists. In fact, the ACR is a national professional organization serving more than 36,000 diagnostic/interventional radiologists, radiation oncologists, nuclear medicine physicians and medical physicists.

What does our ACR accreditation mean?

  • Our facility has voluntarily gone through a vigorous review process to ensure that we meet nationally accepted standards of care.
  • Our personnel are well qualified through education and certification to administer your radiation therapy treatments.
  • Our equipment is appropriate for the treatment you will receive, and our facility meets or exceeds quality assurance and safety guidelines
  •   You can rest assured that your treatment will be done at a facility that has met the highest level of quality and radiation safety.

Radiation Oncology Physicians

Richard T. Chung, M.D.

DR. Richard Chung, MDDr. Richard T. Chung, MD attended undergraduate school at Stanford University and medical school at the University of California, Los Angeles. In 1994 he completed his residency at Stanford in the field of radiation oncology.

Fascinated by Alaska, Dr. Chung relocated to Anchorage that same year to practice his passion – oncology – at the Anchorage Radiation Therapy Center. Since then, he has been a champion of bringing new radiation therapy technologies to the community so that patients and their families can receive cancer treatment close to home.

In 2006 Dr. Chung and the Anchorage Radiation Therapy Center opened a satellite facility to better serve the growing Mat-Su community.

In 2013, with the help of Dr. Stephen Settle, Dr. Chung brought in the Leksell Gamma Knife® Perfexion™, the most accurate and advanced radiosurgery technology available. And so began Alaska Gamma Knife Center at Anchorage Radiation Therapy Center.


  • 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), and the Denali Oncology Group (DOG).


Stephen H. Settle, M.D., Ph.D.

Dr. Stephen H. Settle, M.D., Ph.D.After graduating from Stanford University with a PhD and earning his MD from Vanderbilt University School of Medicine, Dr. Settle completed his residency training at the MD Anderson Cancer Center. He was then recruited to a joint faculty position at MD Anderson and the Baylor College of Medicine, where he held dual appointments as an Assistant Professor.

In addition to treating patients with cancer, Dr. Settle conducted translational research on brain and spine tumors and served as the course director for resident doctors training in radiation oncology. While at MD Anderson, Dr. Settle developed expertise in stereotactic radiosurgery of the brain and spine, including the use of Gamma Knife to treat patients with intracranial disease.

Dr. Settle and his wife always dreamed of returning to their roots on the west coast, so when he was recruited as the Medical Director of the Alaska Gamma Knife Center in 2013, they jumped at the chance to move their four children to Alaska. Dr. Settle is spearheading the Gamma Knife® program at Anchorage Radiation Therapy Center which uses the latest cancer treatment technology, the Elekta Gamma Knife® Perfexion™, for non-invasive treatment of both cancerous and non-cancerous tumors and conditions in the brain.

"I am so thrilled to be working with Dr. Chung, Dr. Yordy, and Dr. Kusano to bring cutting-edge oncology care to Alaska. I really enjoy establishing a diverse practice, and bringing the skills that I've developed over the last two decades to help Alaskans with a variety of different cancers. The truth is, cancer treatment is currently undergoing a revolution, and using modern tools we are able to help the majority of patients."


  • Board Certified in Radiation Oncology by the American Board of Radiology (ABR).
  • American Society for Radiation Oncology (ASTRO)
  • The American College of Radiology (ACR)
  • Sigma Xi – The Scientific Research Society
  • Society for Neuro-Oncology
  • American Radium Society (ARS)
  • American Society of Clinical Oncology (ASCO)
  • Leksell Gamma Knife Society


Aaron S. Kusano, M.D.,S.M.

KusanoDr. Aaron Kusano joins our practice as of August 3, 2015. He is a born and raised Alaskan, and after spending his years in Anchorage, Alaska he is a product of the distinguished Alaska WWAMI program- also known as Alaska’s Medical School. WWAMI is a collaborative medical school among universities in five northwestern states, Washington, Wyoming, Alaska, Montana, and Idaho and the University of Washington School of Medicine.

He received his medical degree from the University of Washington School of Medicine where he also completed his residency in radiation oncology. He completed his undergraduate degree at Johns Hopkins University, followed by his Master's degree in cancer epidemiology at the Harvard School of Public Health. During medical school he took a year off to complete a year-long fellowship in applied epidemiology at the Centers for Disease Control and Prevention in Atlanta, GA.

Dr. Kusano has published and given talks at national conferences focusing on safety and quality in radiation oncology. Recently he was the keynote speaker at the American Society of Radiologic Technologists Annual National Meeting, speaking on the importance of patient communication in cancer care. Alaska has always been his home, and he is ecstatic to be back. He looks forward to using his training and expertise within our practice, to provide compassionate and the highest quality of care to Alaskans. Welcome home Dr. Kusano, we are proud to have you as part of our Team.


  • 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), and American Brachytherapy Society (ABS).


Medical Physicists and Dosimetry Staff

Medical Physicists and Dosimetry Staff

  • Bryan Jackson, MS, DABR- Chief Physicist
  • Noah Arvidson, MS, Medical Physicist
  • Anthony Mazza, MS, Medical Physicist
  • Kristie Holmes, BSRS, RT(R)(T), Medical Dosimetrist
  • Kara Charlick RT(T), MS, Medical Dosimetrist
  • Hai Tran, MS, Medical Dosimetrist

Radiation Therapists

  • Nancy Gray, RTT - Chief Therapist
  • YoungJu Kim, RTT
  • Jennifer Stewart, RT(T)
  • Paul Frechette, RT(T)
  • Chelsea Holman, RT(T)
  • Lauren Hite, RT(T)
  • Robert (Bob) Sonday, RT(T)

Oncology Nursing  and Dietary Staff

  • Marquetta Zidrashko, CMA, NCPT
  • Julia Michaels, CMA
  • Claudia Teilborg, RN
  • Becky Libal, ANP- Survivorship
  • Joelle Swalling, RN
  • Vashti Olivo, CMA
  • Brisa Alegria, RD, LD- Anchorage & Valley Dietician

Patient Care Coordinators

  • Mai Yee Thao - Supervisor
  • Julie Salem
  • Sheng Xiong
  • Aya Wayt

Practice Administrator

  • Kari Disbrow


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]