Portrait of John W. Park
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John W. Park, MD

Breast Medical Oncology
Breast Cancer Mission Bay
415-353-7070
Portrait of John W. Park
Portrait of John W. Park
ucsf logo

John W. Park, MD

Breast Medical Oncology
Breast Cancer Mission Bay
415-353-7070

On this page

About me

Dr. John W. Park is an oncologist who specializes in breast cancer treatment and research.

In his laboratory, Park works to develop novel technologies for studying and treating cancer. His research includes investigating new forms of immunotherapy such as immunoliposomes (antibodies paired with vesicles similar to human cell membranes) and vaccines that target cancer cells. He also conducts clinical trials of new cancer treatments.

Park has been a visiting scientist at Genentech, where he performed research on HER2/neu, a protein produced in excessive amounts by some breast cancer cells, and Herceptin, a new treatment that acts as an antibody to HER2/neu.

Education & training

Board certification

  • Medical Oncology, American Board of Internal Med/Medical Oncology
  • Internal Medicine, American Board of Internal Medicine

Fellowship

  • Hematology - Oncology, UCSF Graduate Medical Education

Residency

  • Internal Medicine, University of California at Los Angeles GME

Internship

  • Internal Medicine, University of California at Los Angeles GME

Degree

  • MD, Stanford University School of Medicine

My expertise

Locations

    Reviews

    Average rating

    4.9
    4.9 out of 5 Stars
    292 ratings
    About provider reviews

    Showing 1-6 of 75 reviews

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    • 5 out of 5 Stars
      January 28, 2026

      I met with Dr. Park today and he has a great calming personality. We talked about my treatment since this was the fifth out of six chemos, and I will continue with my immunotherapy. He answered all of my questions and we discussed what was needed as I went to the infusion center. I feel confident with his questions and with his knowledge for my particular breast cancer.

    • 4.8 out of 5 Stars
      January 23, 2026

      Actually very professional concern about patient situation like me

    • 5 out of 5 Stars
      January 21, 2026

      Wonderful!

    • 5 out of 5 Stars
      January 21, 2026

      I have full confidence in Dr Park

    • 5 out of 5 Stars
      December 10, 2025

      Dr. Park was superb in proving me a second opinion. World class. He took extensive time to review my case with me. My experience exceeded any expectations that I had.

    • 4.1 out of 5 Stars
      December 5, 2025

      Dr Park was pleasant clear and attentive to my concerns. I was happy with the appointment as far as interaction went.

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