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Radiation Oncology

Language(s) Spoken


Joined Kelsey-Seybold

October 2020

Accepting New Patients?


Professional Background

Dr. Mary Dean earned her Bachelor of Science in medical physics at Louisiana State University in Baton Rouge in 2010. She earned her Doctor of Medicine degree at Louisiana State University in Shreveport in 2014. After an intern year at Houston Methodist Hospital, Dr. Dean completed her radiation oncology residency at the University of Miami/Jackson Memorial Hospital in Miami in 2019. During her residency, she served as chief resident from 2017 to 2018 and participated in a proton therapy externship at MD Anderson Cancer Center in 2018.

Prior to joining Kelsey-Seybold in October 2020, Dr. Dean cared for patients as a radiation oncologist in private practice in Illinois.

Professional Associations

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

Hobbies and Interests

Dr. Dean enjoys playing tennis, traveling, and spending time with family.

Fun Facts

The best advice Dr. Dean has ever received is: “Always treat others as you’d want to be treated.”

The most exotic place she has lived in is Florence, Italy, where she lived for a summer while in college. “It’s an amazing place!”

Her guilty pleasure is Sour Patch Kids candy.

​I consider myself a guide for my patients along their respective journeys, empowering them with the knowledge to feel confident about the care and treatment they receive.

​​​​​​​​​By Phone

Our Contact Center is here to serve you, 24 hours a day, 7 days a week.

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Awards & Recognitions

  • Alpha Omega Alpha Honor Society, 2013

  • Keen-Morris Prize for Outstanding Achievement in Physics, 2010

Abstracts & Presentations

  • M. Dean, M. Studenski, M. Paez-Escamilla, S. Walter, A. Markoe, J.W. Harbour, S. Samuels. “Dosimetric Comparison of COMS and Circular Eye Physics Plaques to Treat Uveal Melanoma.” Poster Presentation – ASTRO 60th Annual Meeting, San Antonio, Texas, 2018.

  • S. Yoo, A. Ahmed, L. Hwang, M. Dean, O. Ragab, S. Bian, et al. “Who Is Tweeting in Oncology? Social Media (SM) Activity Among Academic Leadership in 2018.” Poster Presentation – ASTRO 60th Annual Meeting, San Antonio, Texas, 2018.

  • M. Dean, V. Patel, F. Chinea, D. Kwon, R. Yechieli. “Trends in the Utilization of Pre-Operative vs Post-Operative Radiation Therapy for Soft-Tissue Sarcomas: A Surveillance, Epidemiology, and End Result Analysis.” Poster Presentation – ASTRO 59th Annual Meeting, San Diego, California, 2017.

  • M. Dean, N. Elsayyad, S. Engel, A. Ahmed. “Prevalence and Trends of Gamma Knife Centers in the United States.” J Neur Surg Part B: Skull Base, 2017 Feb. 78(S 01), S1-S156.

  • Ahmed, M. Dean, N. Elsayyad. “U.S. Distribution of Practicing Neurological Surgeons and Radiation Oncologists.” J Neur Surg Part B: Skull Base, 2017 Feb. 78(S 01), S1-S156.

  • M. Dean, L. Rosen, M. Durci, S. Katz, T. Wu. “Definitive Contemporary Chemoradiation with Dose Escalation for Esophageal Cancer.” Poster Presentation – ASTRO 56th Annual Meeting, San Francisco, CA, 2014.

  • L. Rosen, M. Dean, B. Fischer-Valuck, M. McDonald, III, R. Lacour, D. Black. “Outcomes of Cervical Cancer Patients with PET Positive Lymph Node Metastases and Bulky Tumors Following PET Guided Intensive Radiation Therapy and Chemotherapy.” Poster Presentation – ASTRO 55th Annual Meeting, Atlanta, GA, 2013.

  • Poster presentation for LSUHSC-S Medical Student Research Symposium 2012 – “Intensive Radiation Therapy and Chemotherapy Results in Improved Outcome in Cervix Cancer.”

  • Poster presentation for LSUHSC-S Radiology Department Research Symposium 2011 – “Implantable Female Contraceptives: Current Concepts, Placement, and Complications.”


  • Ning M.S., Dean M.K., Taylor K.A., et al. Evaluation and Improvement of Bottlenecking in a Multidisciplinary Oncology Clinic: An Electronic Medical Record Intervention. Cureus 2019;11(5): e4583. doi:10.7759/cureus.4583.

  • Dean M.K., Ahmed A.A., Johnson P., Elsayyad N. Distribution of Dedicated Stereotactic Radiosurgery Systems in the United States. Applied Radiation Oncology 2019;8(1):26-30.

  • Dean M.K., Studenski M.T., Paez-Escamilla M.A., et al. Dosimetric Comparison of Circular Eye Physics and Collaborative Ocular Melanoma Study Plaques to Treat Uveal Melanoma. Brachytherapy 2019; doi: 10.1016/j.brachy.2019.01.005.

  • Dean M.K., Amestoy W., Takita C., Samuels S.E. Radiographic Predictors of IMRT for Treating Regional Lymph Nodes in Breast Cancer. Medical Dosimetry 2018;

  • Collaborator in Golden DW et al. Objective Evaluation of a Didactic Curriculum for the Radiation Oncology Medical Student Clerkship. IJROBP 2018;101(5):1039–1045.

  • Ahmed A.A., Ramey S.J., Dean M.K., et al. Resident Satisfaction with Radiation Oncology Training. Advances in Radiation Oncology 2018;3(3):234-9.

  • Dean M.K., Mellon E., Jimenez R., et al. CB-CHOP: A Simple Acronym for Evaluating a Radiation Treatment Plan. Applied Radiation Oncology 2017;6(4):28-30.