Katherine Van Loon


Gastrointestinal oncologist

Dr. Katherine Van Loon is a specialist in gastrointestinal cancers, with a particular interest in colon cancer.

With a background in public health, Van Loon's research is focused on epidemiology – the study of which populations develop diseases and which factors contribute – as well as outcomes in gastrointestinal malignancies. She has a long-standing interest in global health and has also studied the epidemiology of gastrointestinal cancers in the developing world.

Van Loon earned her master's degree in public health from the Yale School of Public Health before attending the Medical College of Georgia. She completed a residency in internal medicine at Beth Israel Deaconess Medical Center, a teaching hospital of Harvard Medical School. She came to UCSF for a fellowship in oncology in 2009.

Van Loon is a member of the American Society of Clinical Oncology (ASCO). She received a Young Investigator Award from the ASCO Conquer Cancer Foundation in 2012.

  • Education

    Medical College of Georgia, 2006

  • Residencies

    Beth Israel Deaconess Medical Center, Harvard Medical School, Internal Medicine, 2009

  • Fellowships

    UCSF Medical Center, Oncology, 2011

  • Board Certifications

    Medical Oncology, American Board of Internal Medicine

  • Academic Title

    Associate Professor

Clinics I work with

Gastrointestinal Medical Oncology Clinic

Bakar Precision Cancer Medicine Building

1825 Fourth St., Fourth Floor
San Francisco, CA 94158

Cancer Survivorship and Wellness Institute

Bakar Precision Cancer Medicine Building

1600 Divisidero St., Fourth Floor
San Francisco, CA 94115

My reviews


Overall Experience
93 Reviews
Explained things in a way that was easy to understand
93 Reviews
Did the doctor pay attention to your concerns
93 Reviews
Gave easy to understand instructions about taking care of health problems or concerns
91 Reviews
Knew the important information about your medical history
93 Reviews
The provider showed respect for what you had to say
93 Reviews
The provider spent enough time with me
93 Reviews