Holiday Hours

With the exception of Inova hospitals, Inova Emergency Care and Inova-GoHealth Urgent Care, all Inova outpatient offices will be closed for the Memorial Day holiday – Monday, May 27.


8081 Innovation Park Dr
Bldg B
Fairfax, VA 22031


3580 Joseph Siewick Dr
Fairfax, VA 22033


44035 Riverside Pkwy
Leesburg, VA 20176


4320 Seminary Rd
Radiation Oncology Dept.
Alexandria, VA 22304

Potomac Radiation Oncology Center

2280 Opitz Blvd
Woodbridge, VA 22191


About Sarah Gao, MD

Dr. Sarah Gao is a specialty care physician board eligible in radiation oncology. She joined Radiation Oncology Associates in 2022. Dr. Gao is trained in all aspects of radiation oncology, and her practice focuses on the treatment of all types of cancers with an additional focus on the treatment of breast, gynecological, and head and neck malignancies.

Dr. Gao grew up in California and attended California State University in Los Angeles through the early entrance program, graduating magna cum laude with a degree in biochemistry. She went on to receive her medical degree from Yale School of Medicine in New Haven, CT, where she was a recipient of the Hirsch and Hsiung Fellowship for medical research. She completed her radiation oncology residency at Yale and served as chief resident.

Dr. Gao has experience across a variety of treatment modalities including intensity-modulated radiation therapy, volumetric modulated arc therapy, stereotactic body radiotherapy, Gamma Knife radiosurgery, gynecologic brachytherapy, total skin electron therapy and orthovoltage therapy. During her training, Dr. Gao’s research endeavors focused on using data science to further personalize the treatment of cancer patients. She has experience creating and managing clinical databases, performing advanced statistical analyses, and building supervised machine learning models. She has given multiple oral presentations at national meetings and has authored numerous peer-reviewed publications, book chapters and editorials.

Dr. Gao sees patients at Inova Schar Cancer Institute in Fairfax, VA, and at Potomac Radiation Oncology in Woodbridge, VA. Outside the clinic, Dr. Gao enjoys reading, listening to music, trying new recipes and spending time with family.

Medical School
Yale School of Medicine
Saint Mary's Hospital
Training Specialty: Internal Medicine
6/20/2017 - 6/18/2018
Yale New Haven Hospital
Training Specialty: Radiation Oncology
7/02/2018 -

Patient Reviews

About Patient Comments

The Patient Rating score is an average of all responses to physician related questions on our nationally-recognized Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are gathered from our Press Ganey Patient Satisfaction Survey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.