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Radiation Oncology

Language(s) Spoken

English; Portuguese; Korean

Joined Kelsey-Seybold

January 2021

Accepting New Patients?


Professional Background

Dr. Micki Ko earned her Bachelor of Science in biological anthropology at the University of Michigan in Ann Arbor, where she graduated magna cum laude in 1997. She wrote her honors thesis on the epidemiology of breast cancer. She earned her Doctor of Medicine degree at Rush Medical College in Chicago, Ill., in 2001. After an intern year at St. Francis Hospital of University of Illinois, College of Medicine, Dr. Ko completed her radiation oncology residency at the University of California, Irvine Medical Center Integrated Program with City of Hope in 2006.

Prior to joining Kelsey-Seybold in January 2021, Dr. Ko cared for patients as a radiation oncologist at Northwest Radiotherapy Associates.

Professional Associations

Dr. Ko is a member of the American Society for Radiation Oncology, the Texas Medical Association, and the Harris County Medical Society.

Hobbies and Interests

Dr. Ko enjoys exercise, travel, piano, reading, and hanging out with family and friends.

Fun Facts

The best advice Dr. Ko has ever received is: “Follow the golden rule – treat others the way you wish to be treated – and the Serenity Prayer – accept the things I cannot change, change the things I can, and the wisdom to know the difference.”

Not everyone knows this about Dr. Ko, but she was an ACE-certified aerobics and step instructor during medical school.

Dr. Ko traveled in an RV with a mentor and five other college students for a mobile health fair. For two months one summer, they traveled throughout the Midwest, providing health education and medical screenings to underserved communities. The group slept on church floors or with host families.

Her guilty pleasures are egg and bacon breakfast tacos and sugar cookies with royal icing.

​My number one goal is delivering curative doses of radiation while minimizing its side effects and alleviating symptoms while maintaining the best quality of life my patient can achieve. Open and honest communication with the patient and coordinating care with their doctors in a team-based approach is important to me. My role is to empower my patients with knowledge so they can make the best medical decisions for their particular, unique situation.

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Awards & Recognitions

Partners in Caring Recognition of Service

Research and Presentations

  • Neoplastic transformation in vitro by low doses of ionizing radiation: role of adaptive response and bystander effects. M Ko, XY Lao, R Kapadia, E Elmore, and JL Redpath. Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis, May 2006, Vol. 597, Issues 1 - 2, pp. 11 - 17.

  • Neoplastic transformation in vitro induced by low doses of 232 MeV protons. E Elmore, XY Lao, M Ko, S Rightnar, G Nelson, JL Redpath. International Journal of Radiation Biology, April 2005, Vol. 81, No. 4, pp. 291 - 297