Mary Uan-Sian Feng MD

Radiation Oncology•San Francisco, CA

Gastrointestinal Cancer

Professor, Radiation Oncology, University of California San Francisco

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1825 4th St# L1101San Francisco, CA 94143
Phone+1 415-502-7222
Fax+1 415-476-7370

Education & Training

University of MichiganResidency, Radiation Oncology, 2002 - 2007
University of MichiganInternship, Internal Medicine, 2002 - 2003
Washington University in St. Louis School of MedicineClass of 2002

Certifications & Licensure

CA State Medical License 2016 - 2026
MI State Medical License 2002 - 2017
American Board of Radiology Radiation Oncology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2012-2013

Clinical Trials

A Pilot Study of Diffusion MRI in the Assessment of Pancreatic Tumor Response Start of enrollment: 2008 May 01
Completed
A Study of Radiation Toxicity in the Liver Using MRI-Based Perfusion
COMPLETED
Assessment Of Liver Function in Patients Undergoing Hepatic Irradiation Start of enrollment: 2004 Nov 24
Completed
A Study of Changes in Hepatic Function During Radiation Therapy Using Hepatobiliary Single Photon Emission Tomography (SPECT) Start of enrollment: 2008 Aug 01
Completed
A Study of Individualized Stereotactic Body Radiation Therapy (SBRT) for Intrahepatic Cancer Start of enrollment: 2009 Oct 01
Completed
Phase 2
A Pilot Trial to Determine the Extent of Inter- and Intra-Treatment Organ Motion Using Active Breathing Control Device (ABC) in Patients With Pancreatic Cancer Start of enrollment: 2012 Jan 01
Completed
Optimization of MRI for Radiation Therapy Start of enrollment: 2013 Mar 14
COMPLETED
A Pilot Study of Individualized Adaptive Radiation Therapy for Hepatocellular Carcinoma Start of enrollment: 2016 Jan 26
Completed
Not Applicable
Pilot Study of Biomarkers and Cardiac MRI as Early Indicators of Cardiac Exposure Following Breast Radiotherapy Start of enrollment: 2015 Jun 01
Completed
Radiation Therapy for the Treatment of Metastatic Gastrointestinal Cancers Start of enrollment: 2020 Aug 07
RECRUITING
NA
Hypofractionated Radiotherapy Followed by Durvalumab With or Without Tremelimumab for Liver Cancer After Progression on PD-1 Inhibition Start of enrollment: 2022 Feb 04
RECRUITING
PHASE2
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Publications & Presentations

PubMed

Multi-contrast 4DMR via MR multitasking: Early clinical experience and implication for liver stereotactic body radiation therapy.
Oi Wai April Chau, Theodore Geoghegan, Joshua Everts, Junzhou Chen, Mary Feng
Radiotherapy and Oncology. 2025-05-01
Erratum to: Defining Minimum Treatment Parameters of Ablative Radiation Therapy in Patients With Hepatocellular Carcinoma: An Expert Consensus. Yanagihara TK, Tepper J...
Ted K Yanagihara, Joel E Tepper, Andrew M Moon, Aisling Barry, Meritxell Molla
Practical Radiation Oncology. 2025-03-28
Radiation Therapy for Anal Squamous Cell Carcinoma: An ASTRO Clinical Practice Guideline.
Mary Feng, Christopher L Hallemeier, Camille Almada, Olivia Aranha, Jennifer Dorth
Practical Radiation Oncology. 2025-02-27

Journal Articles

Performance/outcomes Data and Physician Process Challenges for Practical Big Data Efforts in Radiation Oncology
Amy Moreno, Shruti Jolly, Mary Feng, Robert Miller, Joseph Herman, Martha M Matuszak, Clifton D Fuller, Wade Smith, James Hayman, Seungtaek Choi, Torunn I Yock, Peter ..., Medical Physics

Press Mentions

ASTRO Issues Clinical Guideline for Use of Radiation Therapy in Anal CancerMarch 13th, 2025
ASTRO Issues Clinical Guideline on Radiation Therapy for Anal CancerFebruary 27th, 2025

Professional Memberships

American Society of Clinical Oncology - ASCO
Member