Redhawk Radiation Therapy Center

Together: A Better Way To Fight Cancer

We treat cancer by creating an environment of wellness surrounding the patient with exceptional medical professionals, vast clinical expertise, and technical resources. We become part of every community we serve and work with other organizations to bring awareness and education to those affected by cancer.

We have 4 locations in the Inland Empire: Riverside, St. Bernardine Hospital, Wildomar, and Redhawk in Temecula.

Redhawk Radiation Therapy Center is part of The US Oncology Network, which has more than 1,400 affiliated physicians with expertise in medical oncology, hematology, radiation oncology, gynecologic oncology, urology, oncology surgery and other specialties at more than 400 sites of care in 26 states, treating over 1.1 million patients annually. The Network provides strong and comprehensive practice management capabilities and value-based care expertise that are critical for practices navigating today’s challenging healthcare landscape. The Network is supported by McKesson Specialty Health, an industry leader in solutions that empower the community patient care delivery system to advance the science, technology and quality of care.


  • Address

44274 George Cushman Court, Suite 100
Temecula, CA 92592

  • Contact Information

P: (951) 252-9300
F: (951) 303-1800


Brian Ronson, MD - Medical Director

Brian Ronson, MD is a board certified Radiation Oncologist practicing at the Radiation Oncology Centers in Wildomar and Temecula. He received his undergraduate degree from Johns Hopkins University and his medical degree from the University of Maryland. He completed his residency in Radiation Oncology at Loma Linda University Medical Center. He has published articles on cancer gene therapy, pituitary adenomas, lymphoma and prostate cancer. 

He has a strong interest in advancing radiation treatment technologies, such as Image Guided Radiation Therapy (IGRT) and Intensity Modulated Radiation Therapy (IMRT). His clinical areas of expertise include head and neck cancer, skin cancer, brain tumors, and prostate cancer.

Medical School: University of Maryland
Residency: Loma Linda University
Board Certification: The American Board of Radiology


• ASTRO - American Society for Therapeutic Radiology and Oncology
• American Medical Association

Tara Washington, MD 

Dr. Tara Washington is a board certified Radiation Oncologist practicing at the Radiation Oncology Centers in Wildomar and Temecula, California. She received her Bachelor of Science Degree from the Massachusetts Institute of Technology and her Medical Degree from the University of Michigan Medical School. She completed her residency training in Radiation Oncology at the Loyola University Medical Center. Subsequently, she joined the Wayne State University School of Medicine Radiation Oncology Department which is now affiliated with the Karmanos Cancer Institute.

Dr. Washington served as a key member of several Multidisciplinary teams including those focused on Breast, Gastrointestinal and Central Nervous System Cancers. She has specialized training and experience in the use of Partial Breast Irradiation and Gamma Knife Radiosurgery. Dr. Washington has also been an invited speaker for multiple professional and community groups as well as local media outlets on topics ranging from Contemporary Issues in the Management of Localized Breast Cancer to Current Recommendations for Cancer Screening.

Medical School: University of Michigan Medical School
Residency: Loyola University Medical Center

Board Certification: 

• The American Board of Radiology


• ASTRO - American Society for Therapeutic Radiology and Oncology
• American Medical Association



  • 3D Conformal
  • 3D Ultrasound Imaging
  • Calypso® 4D Localization System ("GPS for the Body")
  • CT Scanning & Simulation
  • Image-Guided Radiation Therapy
  • Intensity-Modulated Radiation Therapy
  • RapidArc® Radiotherapy
  • Respiratory Gating
  • Stereotactic Radiosurgery (SRS)
  • Stereotactic Body Radiation Therapy (SBRT)




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