Member of Orlando Health Medical Group Member of Orlando Health Medical Group

Catherine E. Mercado, MD - Cancer - Radiation Oncology

Orlando Health Cancer Institute - Downtown Orlando

Address: 1400 S. Orange Ave.
Orlando, FL 32806

Call: (321) 841-8650


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Catherine E. Mercado, MD, is a board-certified radiation oncologist with the Center for Advanced Radiation Therapy at the Orlando Health Cancer Institute. She provides compassionate care for patients at every stage of cancer, in both pediatric and adult patients with additional expertise in proton therapy, intensity-modulated radiotherapy, stereotactic radiosurgery, and image-guided radiotherapy.

Dr. Mercado specializes in treating the following cancers, in children and adults:

  • Thoracic cancer
  • Brain tumors
  • Spine tumors

Dr. Mercado’s Training

Dr. Mercado earned her medical degree from Georgetown University School of Medicine in Washington, D.C., and her undergraduate degree from Williams College in Williamstown, Massachusetts. She completed her residency in radiation oncology and served as chief resident at University of Florida Shands Hospital and UF Health Proton Therapy Institute in Gainesville and Jacksonville, Florida.

About Dr. Mercado

During her residency, Dr. Mercado received several awards for her research and patient care, including the UF College of Medicine Outstanding Educator Award and induction into the Gold Humanism Society.

She also has presented nationally and internationally and published her work in numerous peer-reviewed medical journals. Dr. Mercado is fluent in both English and Spanish.

Academic Information

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Medical Education

Georgetown University


St. John Hospital and Medical Center


University of Florida


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