Glendale Radiation Oncology

City of Hope® Glendale Radiation Oncology provides its surrounding communities with incomparable cancer care and radiation treatments close to home. We are trained in the latest advances in radiation oncology and treat patients using multiple leading-edge technologies.

34.1424568, -118.2458145

720 East Colorado Street
Glendale, CA 91205
All Patients

Monday through Friday: 8 a.m. to 5 p.m.
Closed on major federal holidays

Visitor Policy
  • Clinical Services
  • Insurance Information

City of Hope cares for patients from prevention through survivorship by pairing our expertise in numerous cancers and conditions with world-class technologies and services.

Radiation Oncology

City of Hope’s radiation oncology program is one of the largest and most experienced in Southern California. We offer a comprehensive set of specialized services and advanced technologies, planned and provided by our uniquely trained staff, for a broad range of cancer diagnoses.

Our team is trained in the latest advances in radiation oncology and may use one of the following therapies to treat your cancer:

  • 3-D Conformal Radiation Therapy
  • Electron Beam Therapy
  • Intensity Modulated Radiation Therapy

Is My Insurance Accepted?

View a list of insurance companies that City of Hope currently contracts with for its locations and physicians. Even if your plan is included, check with your insurance company to make sure you are covered. Your insurance company/medical group will tell you if you need any authorizations.

If you wish to receive treatment at City of Hope, but we're not currently contracted with your insurance plan, contact your insurance company and ask about obtaining authorization to receive treatment here.

View our pricing and billing

Provider based billing

No Surprise Billing

When you're treated by an out-of-network provider at an in-network facility, you are protected from balance billing. In these cases, you shouldn't be charged more than your plan's copayments, coinsurance and/or deductible. Learn about your rights and protections against surprise medical bills

Explore City of Hope Glendale Radiation Oncology

Working closely with community physicians, City of Hope Glendale Radiation Oncology acts as a community partner in the radiation therapy care of residents in the Glendale vicinity.

Glendale Radiation Oncology

Our Physicians

Sara Kim, M.D., Radiation Oncologist
Sara H. Kim, M.D.
Radiation Oncologist

Dr. Kim is a radiation oncologist at City of Hope and continues more than two decades treating cancer patients in the local community.

Jason Liu, M.D.
Jason Liu, M.D.
Radiation Oncologist

Dr. Liu is a radiation oncologist and assistant clinical professor in the Department of Radiation Oncology at City of Hope Glendale and South Pasadena.

Sean Maroongroge M.D. M.B.A.

Sean Maroongroge, M.D., M.B.A., is a board-certified radiation oncologist and assistant clinical professor at City of Hope’s Duarte and Glendale campuses, where he is involved in many stages of patient care, from tumor detection through treatment and survivorship. He is an expert in treating head

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