About BASS Cancer Center

BASS Cancer Center is a part of BASS Medical Group, a multi-specialty medical group with more than 400 providers and 40 specialties in the Bay Area and Central Valley. BASS is teaming up with leading oncology partners to provide comprehensive, compassionate, and personalized cancer care to the San Francisco Bay Area by way of our state-of-the-art Walnut Creek facility.

The BASS Promise

Exceptional Care through Extraordinary Technologies

The BASS 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.

Inez Wondeh

Chief Executive Officer
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Michael Duffy

VP of Operations
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Ramona Parvaneh

VP of Finance
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Dr. Kenneth Chao

Radiation Oncologist & Medical Director
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Jesse Kaestner

Associate Director, Radiation Oncology & Imaging
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Wendy Ennis, RN

Oncology Nurse Navigator
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Our Cancer Doctors

Patient Centric Cancer Care Starts with Great Doctors

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Dr. Kenneth Chao

Dr. Kenneth Chao

Radiation Oncologist and Medical Director
Specializing in
Radiation Oncology
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Dr. Steven Kurtzman

Dr. Steven Kurtzman

Radiation Oncology
Specializing in
Radiation Oncology
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Dr. Soheila Azghadi

Dr. Soheila Azghadi

Radiation Oncology
Specializing in
Radiation Oncology
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Dr. James Mitchell

Dr. James Mitchell

Radiation Oncology
Specializing in
Radiation Oncology
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Dr. Michael Sherman

Dr. Michael Sherman

Medical Oncologist
Specializing in
Medical Oncology and Hematology
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Dr. Diana Superfin

Dr. Diana Superfin

Medical Oncologist
Specializing in
Medical Oncology and Hematology
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Dr. Gauri Sharma

Dr. Gauri Sharma

Medical Oncologist
Specializing in
Medical Oncology and Hematology
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Dr. Tracie Watson

Dr. Tracie Watson

Medical Oncologist
Specializing in
Medical Oncology and Hematology
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Dr. Heidi Chang

Dr. Heidi Chang

Gynecologic Oncologist
Specializing in
Gynecologic Cancers
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Dr. Dimitry Lerner

Dr. Dimitry Lerner

Gynecologic Oncologist
Specializing in
Gynecologic Cancers
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Dr. Stephen Wells

Dr. Stephen Wells

Obstetrics and Gynecology
Specializing in
Gynecologic Cancers
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Dr. Timothy Leach

Dr. Timothy Leach

Obstetrics and Gynecology
Specializing in
Gynecologic Cancers
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Dr. Jonathan L. Chin

Dr. Jonathan L. Chin

Urologist
Specializing in
Urological Cancers
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Dr. Brian D. Hopkins

Dr. Brian D. Hopkins

Urologist
Specializing in
Urological Cancers
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Dr. Kenneth Hsiao

Dr. Kenneth Hsiao

Urologist
Specializing in
Urological Cancers
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Dr. Dawud Lankford

Dr. Dawud Lankford

Urologist
Specializing in
Urological Cancers
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Dr. Andrew Smith

Dr. Andrew Smith

Urologist
Specializing in
Urological Cancers
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Dr. C. Charles Wen

Dr. C. Charles Wen

Urologist
Specializing in
Urological Cancers
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Dr. Christopher Welty

Dr. Christopher Welty

Urologist
Specializing in
Urological Cancers
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Dr. Shu Pan

Dr. Shu Pan

Urologist
Specializing in
Urological Cancers
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Dr. Alex A. Aslan

Dr. Alex A. Aslan

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Huilan Cheng

Dr. Huilan Cheng

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Lisa Higa

Dr. Lisa Higa

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Mehra Hosseini

Dr. Mehra Hosseini

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Jenny F. Jew

Dr. Jenny F. Jew

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. V. Arek Keledjian

Dr. V. Arek Keledjian

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Cynthia Mullen

Dr. Cynthia Mullen

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Kalyani Maganti

Dr. Kalyani Maganti

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Subhendu Narayan

Dr. Subhendu Narayan

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. F. Anderson Rowe

Dr. F. Anderson Rowe

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Rishi Sharma

Dr. Rishi Sharma

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Salim Shelby

Dr. Salim Shelby

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Philip C. Yee

Dr. Philip C. Yee

Gastroenterologist
Specializing in
Colorectal Cancers
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Dr. Ran S. Kim

Dr. Ran S. Kim

Colorectal Cancers
Specializing in
Colorectal Cancers
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Dr. Brian J. McGuinness

Dr. Brian J. McGuinness

Colorectal Cancers
Specializing in
Colorectal Cancers
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Dr. Negar M. Salehomoum

Dr. Negar M. Salehomoum

Colorectal Cancers
Specializing in
Colorectal Cancers
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Dr. Poornima Vanguri

Dr. Poornima Vanguri

Colorectal Cancers
Specializing in
Colorectal Cancers
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Dr. Rupert Horoupian

Dr. Rupert Horoupian

Colorectal Cancers
Specializing in
Colorectal Cancers
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Dr. Mary K. Cardoza

Dr. Mary K. Cardoza

Breast Cancer
Specializing in
Breast Cancers
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Dr. Elizabeth Cunningham

Dr. Elizabeth Cunningham

Breast Cancer
Specializing in
Breast Cancers
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Dr. Danielle Bertoni

Dr. Danielle Bertoni

Breast Cancer
Specializing in
Breast Cancers
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Dr. Michaela Straznicka

Dr. Michaela Straznicka

Thoracic Surgical Oncologist
Specializing in
Thoracic Cancers
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Dr. Wilson S. Tsai

Dr. Wilson S. Tsai

Thoracic Surgical Oncologist
Specializing in
Thoracic Cancers
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Dr. Jennifer Chan

Dr. Jennifer Chan

Thoracic Cancers
Specializing in
Thoracic Cancers
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Dr.  Maxwell B. Merkow

Dr. Maxwell B. Merkow

Neurological Surgeon
Specializing in
Brain & Spine Cancers
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Dr. Joshua Au

Dr. Joshua Au

Head and Neck Cancers
Specializing in
Head & Neck Cancers
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Dr. Ajay Upadhyay

Dr. Ajay Upadhyay

Surgical Oncologist
Specializing in
Surgical Oncology
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Dr. Steven Stanten

Dr. Steven Stanten

Surgical Oncologist
Specializing in
Surgical Oncology
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Dr. Teresa Kim

Dr. Teresa Kim

Surgical Oncologist
Specializing in
Surgical Oncology
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Dr. Rockson Liu

Dr. Rockson Liu

Surgical Oncologist
Specializing in
Surgical Oncology
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