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 across 40 specialties serving the Bay Area and Central Valley. Formerly known as the BASS Cancer Center, the center was renamed in honor of our late founder, Dr. Gregory A. Rhodes, M.D., reflecting his legacy of compassionate, patient-focused care.

Located in Walnut Creek, the center brings together oncology, surgery, imaging, and support services in one setting. In partnership with leading oncology providers, we offer coordinated, personalized cancer treatment designed around each patient’s needs.

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. Inez Wondeh, Chief Executive Officer at BASS Medical Group.
In Memoriam

Inez Wondeh, MPA, MBA

Chief Executive Officer
Read Our CEO's Bio
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
Read Jesse's Bio
Professional headshot of Dr. Tarannum Guller, Chief Medical Officer of BASS Medical Group.
In Memoriam

Dr. Tarannum Guller, MD, MMM

Chief Medical Officer
Read Our CMO's Bio