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8095 Innovation Park Drive, Fairfax, VA 22031

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CyberKnife® Team

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The physicians who specialize in CyberKnife® radiosurgery therapy are experts in their field and among the most highly respected specialists in the Washington, DC, metro area. Our highly trained radiation oncologists treat more radiation therapy patients than anyone in the area and work closely with the referring specialists in a team approach to provide the most complete, advanced care.

Our CyberKnife experts all practice at nationally recognized Inova Fairfax Hospital, named the DC metro area's top hospital by U.S. News & World Report.

Nilesh Vyas, MD

Nilesh A Vyas, MD

A member of Inova Medical Group
The doctors of Inova Medical Group are Inova’s premier primary care and specialty physicians, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records.
Specialty: Neurological Surgery
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Brain Cancer/Tumors, Carotid Artery Disease, Pituitary tumors, Spine Problems/Surgery and Treatments
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 23
James Ecklund, MD

James M Ecklund, MD

A member of Inova Medical Group
The doctors of Inova Medical Group are Inova’s premier primary care and specialty physicians, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records.
Specialty: Neurological Surgery
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Brain Cancer/Tumors, Brain Injury, Minimally Invasive Spine Surgery, Neck Problems/Surgery and Treatments, Spine Problems/Surgery and Treatments
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 36
John Hamilton, MD

John F Hamilton, MD

A member of Inova Medical Group
The doctors of Inova Medical Group are Inova’s premier primary care and specialty physicians, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records.
Specialty: Neurological Surgery
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Brain Cancer/Tumors, Brain Injury, Peripheral Nerve, Spine Problems/Surgery and Treatments
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 29
Samir Kanani, MD

Samir P Kanani, MD

Specialty: Radiation Oncology
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Brain Cancer/Tumors, Liver Cancer, Lung Cancer, Pancreatic Cancer, Prostate Cancer
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 24
Ashish Chawla, MD

Ashish K Chawla, MD

Specialty: Radiation Oncology
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Breast Cancer, Gastrointestinal (GI) Cancer
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 25
Gopal Bajaj, MD

Gopal K Bajaj, MD

Specialty: Radiation Oncology
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Ear Nose and Throat, Head and Neck Cancer, Lung Cancer, Pancreatic Cancer, Prostate Cancer
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 23
Stella Hetelekidis, MD

Stella Hetelekidis, MD

Specialty: Radiation Oncology
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Breast Cancer, Cancer, Gynecologic Cancer and Treatment
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 35

Sandeep J Khandhar, MD

Specialty: Thoracic and Cardiac Surgery, Surgery
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Cancer, Cardiac, Minimally Invasive Surgery
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 24