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8110 Gatehouse Road, Falls Church, VA 22042

Meet Our Team

Medical Oncology

John F Deeken, 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: Medical Oncology
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Head and Neck Cancer, Personalized Medicine, Pharmacogenetics
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 21

Cancer Surgery

William J. Purkert, 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: Surgery
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Parathyroid surgery, Thyroid Cancer, Thyroid Disorders
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 43

Jina Kim, 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: Surgery
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Children's Thyroid Cancer, Children's Thyroid Problems and Treatment, Endocrine Advanced Minimally Invasive surgery, Parathyroid surgery, Thyroid Cancer
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 10

Radiation Oncology

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: 22
Tobias Chapman, MD

Tobias R Chapman, MD

Specialty: Radiation Oncology
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Clinical Interests: Colorectal Cancer, Gastrointestinal (GI) Cancer, Head and Neck Cancer, Prostate Cancer, Skin Cancer
Areas of special interest identified by the physician or additional training completed.
Years of Experience: 10

Endocrinology

Samantha A Diamond-Rossi, 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: Endocrinology, Diabetes and Metabolism, Internal Medicine
Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Years of Experience: 8

Nuclear Medicine/Radiology

Zenaida Ferguson , Nurse Navigator

Karina Benitez , New Patient Coordinator