Kiran Kumar, M.D.

Chief of Lymphoma and Pediatrics Radiation Oncology Services; Program Director, Medical Residency

  • Radiation Oncology
  • Radiation Therapy for Lymphoma
  • Radiation Therapy for Leukemia


Kiran Kumar, M.D., M.B.A., is an Assistant Professor at UT Southwestern Medical Center and Chief of Lymphoma and Pediatrics Radiation Oncology Services. He specializes in the treatment of pediatric, lymphoma, and central nervous system cancers through the use of radiation therapies.

Dr. Kumar grew up in Arizona, where he earned dual undergraduate degrees in biochemistry and health administration at the University of Arizona. He then moved to Chicago, where he completed medical school at the University of Chicago Pritzker School of Medicine and a transitional year internship at Presence Resurrection Medical Center.

He followed that by completing his radiation oncology residency at Stanford University Medical Center, as well as graduate school at the University of California Berkeley-Haas School of Business, where he earned a degree in business administration.

Dr. Kumar went into medical school with a vague interest in oncology, based on prior experiences taking care of cancer patients as a hospice volunteer and doing research in a cancer pain laboratory, but he did not know much about radiation oncology until a shadowing experience as a first-year medical student.

“After just one week of shadowing, I knew radiation oncology was the perfect fit for me,” he says. “It combines my interest in technology and research with my passion for directly providing care for those dealing with one of the scariest diagnoses that exist – cancer.”

In addition to his clinical and research-related work, Dr. Kumar is passionate about medical and patient education, and consistently brainstorms innovative ways of improving patient education, such as audio and visual resources and support groups. He currently serves as Director of the Medical Residency Program.

Meet Dr. Kumar

Pediatric, lymphoma, and CNS cancer specialist in Dallas 

Dr. Kumar focuses on treating patients with pediatriclymphoma, and central nervous system cancers with radiation therapies. In general, he strives to provide the highest quality care using the most up-to-date techniques and therapies for all of his patients.

A strong believer in the importance of shared decision making, Dr. Kumar dedicates a significant amount of his time to patient education to ensure that his patients and their families have all the information they need to make an educated and informed decision regarding treatment. He wants his patients to know that while there are still risks with radiation treatment, it is often much less than they expect.

“Many people are afraid when they hear the word ‘radiation’, especially for children or young adults,” he says. “What most don’t realize is that radiation therapy has changed significantly over the last couple decades and with the latest technology and evidence from ongoing research, we are able to treat much more precisely and accurately with smaller volumes and less total dose, resulting in significantly fewer side effects.”

In addition to his clinical duties, Dr. Kumar is involved in a number of research projects, including SBRT for the treatment of spinal metastases, radiation therapy using PROMISE (pediatric radiation oncology with movie-induced sedation effect) technology to decrease the number of pediatric treatments requiring anesthesia, and the combination of immunotherapy with radiation therapy for treatment of primary or refractory/relapsed primary CNS lymphoma.

To Dr. Kumar, being a radiation oncologist is a privilege. Rather than just providing radiation treatments to patients, being there for all aspects of a patient’s life, both during and after treatment, is a highly rewarding experience.

“The most gratifying thing for me is seeing a child I took care of several years ago who has now gone off to college or gotten married and started a family of his or her own,” he says.    

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Education & Training
  • Other Post Graduate Training - University of California - Berkeley (2016-2018)
  • Graduate School - University of California - Berkeley (2016-2018)
  • Residency - Stanford University Medical Center (2014-2018), Radiation Oncology
  • Internship - Presence Resurrection Medical Center (2013-2014), Transitional Year
  • Medical School - University of Chicago Pritzker School of Medicine (2008-2013)
Professional Associations & Affiliations
  • American Society for Radiation Oncology (ASTRO) (2013)
  • American College of Radiation Oncology (ACRO) (2015)
  • Radiological Society of North America (RSNA) (2014)
  • American Society of Clinical Oncology (ASCO) (2019)
  • Children’s Oncology Group (COG) (2019)
  • International Society for Pediatric Oncology (SIOP) (2019)
  • Pediatric Radiation Oncology Society (PROS) (2019)
  • International Lymphoma Radiation Oncology Group (ILROG) (2018)
  • The Radiosurgical Society (RRS) (2017)
Honors & Awards
  • RSS Annual Scientific Meeting Award for Best Oral Presentation and Best Medical Resident Abstract 2017
  • Stanford Honors Certificate in Medical Education 2017
  • University of Chicago Department of Radiation Oncology Award 2013
  • ASTRO Annual Meeting Scientific Abstract Award 2012
  • Calvin Fentress Research Fellowship Award 2012
Books & Publications

Clinical Focus

  • Radiation Therapy for Lymphoma
  • Radiation Therapy for Leukemia
  • Radiation Therapy for Brain Tumors
  • Radiation Therapy for Spinal Cord Cancer
  • Pediatric Brain Tumors
  • Lymphoma Treatment
  • Myeloma Treatment
  • Bone Marrow Transplant
  • Brain Metastases
  • Brain & Spinal Cord Cancer
  • Gliomas
  • Meningiomas
  • Skull Base Tumors
  • Pituitary Tumors
  • Acoustic Neuromas
  • Sarcoma
  • Cancerous (Malignant) Bone Tumors
  • Skin Cancer
  • Ocular Lymphoma
  • Ocular oncology

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