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.

Exterior of the Gregory Rhodes MD Cancer Center, part of BASS Medical Group in Walnut Creek, featuring the off-white two-story building with the orange BASS logo and signage reading “BASS Medical Group | Gregory Rhodes MD Cancer Center,” surrounded by trees and landscaping.

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

Professional headshot of Dr. Tarannum Guller, Chief Medical Officer at BASS Medical Group.
In Memoriam

Inez Wondeh, MPA, MBA

Chief Executive Officer
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Professional headshot of Jesse Kaestner, Executive Director of Ancillary Services at the Gregory Rhodes MD Cancer Center
In Memoriam

Jesse Kaestner, MBA, RT(T)

Director, Cancer Center
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Professional headshot of Dr. Tarannum Guller, Chief Medical Officer at BASS Medical Group.
In Memoriam

Dr. Tarannum Guller, MD, MMM

Chief Medical Officer
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