+1 949.417.1100 info@ccoi.org
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To provide world class, quality care while delivering an unparalleled patient experience.
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Welcome to KSK Cancer Center of Irvine (CCOI)

CCOI offers the highest quality cutting edge Radiation Oncology treatments for various cancers.
We specialize in external beam radiotherapy, brachytherapy.

Our cure rates remain among the best in the country.  


CCOI is a privately owned comprehensive medical center which offers top quality treatment and care from our finest medical faculty; handpicked for their expertise, years of experience and quality of care.


CCOI is the lead developer of the spacer material for Prostate Cancer treatemnt  and we have dramatically decreased the rectal symptoms and injuries. We have treated over 820 patients with this technology with amazing results.


Scheduling an appointment is as simple as calling our office or sending us an email. Our team of expert physicians and technologists are here to assist you.
Our Services

Best in the Country Cure Rates

CCOI offers the highest quality cutting edge Radiation Oncology treatments for various cancers. We’re here to provide world class, quality cure while delivering an unparalleled patient experience.

Our Equipment

State-of-the-Art Equipment

CCOI is equipped with leading-edge technology. We are committed to offering the most current advances in patient screening and treatment.

Cancer Information

CCOI also has an extensive background in treating prostate and breast along with many other areas such as lung, gastrointestinal, genitourinary, gynecological, skin, brain and palliative cases. Check out the helpful information and resources.


“You really made a difference! The office staff is wonderful. We appreciate everything you’ve done. Fondly,”

Steve & Carol & Family

“The competence and friendliness of your staff far exceeded my own and my wife’s expectation.”


“They thought of everything at Cancer Center of Irvine.”


“To all the staff at Cancer Center of Irvine, I give you my heartiest thanks. Your loving care, kindness, expertise and professionalism has seen me through this difficult time, as well as I would have ever dreamed. Smiling faces, sincere greetings and goodbyes all make for a remarkable experience. I shall not forget any of you. You are my “heroes”. Thank you for giving me a few more years of life. Bless you all.”


“Staff extremely well trained, very professional, and so personal; greets each patient by name as we enter, always treatment on time or early, smiles, eye contact, what a joyful positive place!” 


“Cheerfulness, good humor and interest in the patients – these are the hallmarks of the staff – Great job!”


“Great experience for being sick. You have great employees. They really care. Hope to see all of you in 20 years.”

Bob &Linda

“Just keep doing the great job!”



Greet-The-Day Spa Treatment

Greet-The-Day Spa Treatment for our female patients every quarter year, we are fortunate to provide a spa day for 2 current or past patients that have had treatment at our center. The complimentary spa and lunch grants female patients the opportunity to...

Radiation Therapy 101

What is Radiation Therapy? Radiation Therapy is the medical use of ionizing radiation as part of cancer treatment to control cancer cells. Varian 23 iX with OBI imaging, Uses of Radiation Therapy: Radiation Therapy can be used for the primary course of...

Prostate radiation made safer

Dr. Kenneth Tokita, director of the Cancer Center of Irvine's interview with Orange County Register. CLICK HERE FOR THE FULL ARTICLE→

KSK Cancer Center of Irvine provides world class, quality care delivering an unparalleled patient experience.


16100 Sand Canyon Ave, Suite 130
Irvine, CA 92618

Phone: 949.417.1100
Fax: 949.417.1165
Email: info@ccoi.org