Staff at Texas Cancer Institute.

Get to know your Radiation Therapy team.

We'll be with you every step of the way.
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You deserve the best Radiation Oncology Austin has to offer.

We are a specialized practice solely focusing on Radiation Oncology that maintains a low patient-to-physician ratio. 

This approach ensures that you receive not only exceptional treatment but also an unparalleled patient experience.
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WE PROMISE TO:

  • Provide the most advanced treatment solutions for the best possible outcome.
  • Plan your treatment meticulously in consultation with your other providers.
  • Treat you with kindness and respect always.
  • Return your phone calls the same day.
  • Walk closely with you throughout your journey with us.
"Dr. Cox is the epitome of an excellent physician. He is bright and kind beyond belief. This doctor was there for me and my family every step of my recovery. He gave me the ultimate care. Thank you."
TCI Patient
"Dr. Ghafoori and all the staff are wonderful! Everything was explained in detail and all my questions answered. The providers get 5 stars!"
Leeza
"[Dr. Warhoe]...was warm and reassuring. My case got complex and she was kind and thorough - even called me at home in the evening to talk to me about it. I highly recommend Dr. Warhoe."
TCI Patient
Our team of providers and staff look forward to meeting you!

Meet Our Providers

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Paiman Ghafoori, MD
BOARD-CERTIFIED
RADIATION ONCOLOGIST
  • Medical School: Harvard University
  • Residency: Duke University Medical Center
  • Assistant Professor, Department of Oncology: Dell Medical School at the University of Texas
  • Board Certification: Radiation Oncology
Dr. Ghafoori has received numerous awards and research grants from national institutions, including the National Institutes of Health (NIH), the American Society of Clinical Oncology, and the Radiological Society of North America. Additionally, he has been voted Most Compassionate Doctor and received several Patients' Choice Awards from leading patient survey publications. Dr. Ghafoori was also voted one of the Top 10 Radiation Oncologists in Texas.
“It is a special privilege to care for patients diagnosed with cancer. I strive to provide state-of-the-art oncology care with genuine compassion and concern for the well-being of my patients.”
– Dr. Ghafoori
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Shannon D. Cox, MD
BOARD-CERTIFIED
RADIATION ONCOLOGIST
  • Medical School: University of Texas Medical Branch in Galveston
  • Residency: University of Texas Health Science Center in San Antonio
  • Board Certification: Radiation Oncology
Dr. Cox has been listed among the Best Austin Doctors several times by Austin Monthly. He has previously served as the President of the Austin Division of the American Cancer Society and served many years on the Texas Medical Physicist Licensure Board, the POEP (Physicians Oncology Education Program), as well as a subcommittee of the Texas Cancer Council.
“I am very honored to have the trust and confidence and be able to work with the wonderful Patients and Medical Team here in Austin. “
– Dr. Cox
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Kirsten Warhoe, MD
BOARD-CERTIFIED
RADIATION ONCOLOGIST
  • Medical School: University of Colorado
  • Residency: University of California, Davis and Baylor Scott & White Health
  • Board Certification: Internal Medicine and Radiation Oncology
“I appreciate the challenging and complicated nature of providing excellent care to my cancer patients, who have received some of the most challenging and stressful news anyone can have. It is gratifying to be a part of their team, facing and fighting the cancer diagnosis. I hope that I help each patient by sharing the expertise gained from my training with an attitude of compassion and respect for their struggle.”
– Dr. Warhoe
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Golnaz Sadr, CNS, DNP
CLINICAL NURSE SPECIALIST
DOCTORATE IN NURSING PRACTICE
  • Bachelor of Science in Nursing: University of Texas at Austin
  • Master of Science as a Clinical Nurse Specialist: University of Texas at Austin
  • Doctorate in Nursing Practice: Johns Hopkins School of Nursing
“Human beings are members of a whole, in creation of one essence and soul. If one member is afflicted with pain, other members' unease will remain.”
– Golnaz Sadr
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Your well-being is our priority, and we're ready to support you on your cancer journey. Together, we can make a difference and bring hope to your path of healing.

We look forward to serving you with compassion, expertise, and dedication.
Together, we can work towards a brighter, cancer-free future for Austin, TX and beyond.
Schedule a consultation

Austin

11111 Research Blvd
Ste. LL2
Austin, TX 78759

Cyberknife

1400 North IH 35
Austin, TX 78701
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