What is The Gregory Rhodes MD Cancer Center?

The Gregory Rhodes MD Cancer Center is part of BASS Medical Group, a multi-specialty medical group with more than 400 providers and 40 specialties serving the Bay Area and Central Valley. Named in honor of our late founder, Dr. Gregory A. Rhodes, M.D., the center reflects his legacy of compassionate, patient-focused care. In partnership with leading oncology providers, we deliver comprehensive and personalized cancer treatment from our state-of-the-art facility in Walnut Creek.

Dr. Tyler Kang and care team supporting a patient at the Gregory Rhodes MD Cancer Center.

Our Promise

The Gregory Rhodes MD Cancer Center is a medical facility that offers patients with cancer, and their families, the highest level of care through cutting-edge technology. We offer state-of-the art treatment options to improve your quality of life and provide you with peace of mind during this difficult time in your life. Our expert providers are committed to providing exceptional care by using extraordinary technologies for our patients who trust us with their cancer treatments.

American Society for Radiation Oncology (ASTRO) APEx Accreditation Program for Excellence seal awarded to Gregory Rhodes MD Cancer Center.Vision RT Center of Excellence badge recognizing Gregory Rhodes MD Cancer Center for excellence in guiding radiation therapy.

Our Leadership Team

In Memoriam

Inez Wondeh, MPA, MBA

Chief Executive Officer
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Cancer Center Director Jesse Kaestner, MBA, RT(T)
In Memoriam

Jesse Kaestner, MBA, RT(T)

Director, Cancer Center
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In Memoriam

Dr. JB Zhang, PhD

Director of Medical Physics and Dosimetry
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In Memoriam

Ramona Parvaneh, CPA, MBA

Executive VP of Finance
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In Memoriam

Dr. Tarannum Guller, MD, MMM

Chief Medical Officer
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