photo of Lillie O'Steen, MD, Radiation Oncologist

Lillie O'Steen, MD

Radiation Oncologist

4.9 out of 5 stars 4.9 (153)

Areas of Expertise Include:

  • Head and Neck Cancer
  • Brain and Spine Cancer
  • Lung Cancer
  • Stereotactic Body Radiotherapy
  • Stereotactic Rediosurgery
  • Gynecologic Cancer and Breast Cancer
  • Gastrointestinal Cancer
  • Genitourinary Cancers

Lillie O’steen, MD, recognizes the challenges of receiving a cancer diagnosis and completing treatment and enjoys partnering with her patients through their unique cancer journeys. Dr. O’steen is also passionate about research, having opened her own investigator-initiated clinical trial, and publishing and presenting her findings. Her areas of expertise include:

About Me

I am a North Florida native and lifelong University of Florida Gator fan who grew up in Union County, where I was the valedictorian of my high school class.

I believe caring for cancer patients is a great honor in life, and I feel we should always be pushing the envelope to improve cancer treatment.

A few years ago, I participated in a radiation oncology mission trip to Nicaragua and served on the board of a Samaritan Free Clinic.


  • Radiation Oncology


  • Bachelor of Science - Undergraduate

    University of Florida - Gainesville, FL

    2008 - 2011

  • Doctor of Medicine - Residency

    University of Florida College of Medicine - Gainesville, FL

    2016 - 2020

  • Doctor of Medicine - Medical School

    University of Florida College of Medicine - Gainesville, FL

    2011 - 2015

  • Doctor of Medicine - Internship

    University of Florida College of Medicine - Gainesville, FL

    2015 - 2016

Hospital Affiliation

  • Baptist Medical Center Clay
  • Baptist Medical Center South
  • Baptist Medical Center Jacksonville

Legal Practice Name

Baptist MD Anderson Cancer Physicians, Inc.