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John K. Ma MD PhD

My Medical Specialty: Radiation Oncology
Related Departments: Cancer
male | Speaks: Chinese, English

Primary Phone: (785) 270- 4918


My grandmother was diagnosed with nasopharyngeal carcinoma when I was very young. Unfortunately, she died from complications arising from the cancer despite chemotherapy and radiation therapy. So, I’m hoping to utilize my knowledge of nuclear physics, my clinical skills, my medical knowledge and my interpersonal demeanor to help patients similar to my grandmother.

In the field, I am versed in electronic radiation, 3D conformal radiation, intensity modulated radiation, stereotactic radiation therapy and brachytherapy.

The message I would like to convey to the patients is that cancer is no longer a death sentence. Tremendous strides have been made in not only radiation but also medical oncology and systemic therapy, targeted therapy, within the past few decades.

No two patients are exactly alike. Typically for me there are no typical patients because they come from all walks of life all backgrounds and all different ages. But, I do recognize there is a common theme across the board, and that is hope. And that’s what I hope to instill in my patient through the most recent and advanced technology – and my medical knowledge – that’s available. Seeing the gratification on my patient’s face or from their loved ones; it’s what gets me up in the morning, it’s what puts a smile on my face.

Board Certification

Am Bd Radiology (Radiation Oncology)


University of Mississippi
Jackson, MS

Internal Medicine
University of Arkansas School of Medicine
Little Rock, AS

University of Mississippi
Jackson, MS

Doctoral Degree
University of Mississippi
Jackson, MS

Medical School
University of Mississippi
Jackson, MS

University of Mississippi
Oxford, MS

This Provider Practices at:

Cotton O’Neil Cancer Center

1414 SW 8th Ave
Topeka, KS 66606

(785) 354-5300
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Stormont Vail Hospital

1500 S.W. 10th Ave.
Topeka, KS 66604-1301

(785) 354-6000
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