Michael Guiou, MD

Dr. Guiou was born in Sacramento, California; and with his father’s career in the Air Force, he grew up across several states. He attended the University of California Davis School of Medicine in Sacramento and completed a residency at The Ohio State University in Columbus, Ohio. Dr. Guiou loves the kind and caring culture of the Midwest, a trait he found was often lacking in bigger cities where he lived. Dr. Guiou has always had a desire to help people and considers it a privilege to care for the patients under his care.

In his free time, Dr. Guiou enjoys skiing, whitewater rafting & kayaking, hiking, camping, and watching professional soccer.

“You deserve my undivided attention. Your priorities, and your comfort, will be front and center – and served with tireless expertise.”


  • Treatment of all cancer types
  • National Cancer Institute (NCI) Community Oncology Research Program (NCORP) trial participant


  • University of California Davis School of Medicine, Sacramento, CA


  • The Ohio State University, Columbus, OH


  • Radiation Oncology


  • Special interest in pediatric radiation oncology
  • Special interest in central nervous system tumors, brain and spine radiosurgery, and base of skull tumors
  • Author of multiple peer-reviewed articles addressing cancer of various types and treatments
  • Clinical advisor for Behavioral Education of Children with Autism
  • Born in Sacramento, CA
  • Married, father of two
  • Enjoys skiing, whitewater rafting, kayaking, hiking, camping, and is an avid soccer fan


Michael is a detail-oriented problem solver. He excels in recognizing what his patients may need throughout their experience, and he works to deliver effective solutions as quickly as possible.
KEY TRAITS: Driven, analytical, insightful