About 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.

The BASS Promise

Exceptional Care through Extraordinary Technologies

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.

Our Leadership Team

We're here to serve you.

Professional portrait of Inez Wondeh

Inez Wondeh

Chief Executive Officer
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Ramona Parvaneh

Executive Vice President
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Dr. Tarannum Guller

Chief Medical Officer
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Jesse Kaestner, MBA, RT(T)

Director, Cancer Center
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Dr. JB Zhang, PhD

Director of Medical Physics and Dosimetry
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