Portrait of Katy K. Tsai
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Katy K. Tsai, MD

Cutaneous (Skin) Medical Oncology
Melanoma & Skin Cancer Mission Bay
415-353-9900
Portrait of Katy K. Tsai
Portrait of Katy K. Tsai
ucsf logo

Katy K. Tsai, MD

Cutaneous (Skin) Medical Oncology
Melanoma & Skin Cancer Mission Bay
415-353-9900

On this page

About me

Dr. Katy K. Tsai is a medical oncologist who specializes in treating melanoma and other skin cancers.

In addition to caring for patients, Tsai conducts clinical trials with two of her colleagues in cutaneous oncology, Dr. Adil Daud and Dr. Alain Algazi, seeking new and better therapies for patients with advanced melanoma or head and neck cancers. She also has a long-standing research interest in quality of life and outcomes for patients receiving immunotherapy.

Tsai graduated with a degree in comparative literature from Brown University before earning her medical degree from Brown. She completed a residency in internal medicine at the University of North Carolina at Chapel Hill, followed by a fellowship in medical oncology at UCSF, where she served as chief fellow.

Tsai is a member of the American Society of Clinical Oncology. She was born in Taiwan and raised in Toronto.

Education & training

Board certification

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

Fellowship

  • Oncology, University of CA at San Francisco - Hema/Onc GME

Residency

  • Internal Medicine, University of North Carolina Schl of Medicine GME

Internship

  • Internal Medicine, University of North Carolina Schl of Medicine GME

Degree

  • MD, Brown University School of Medicine

My expertise

Locations

    My research

    Reviews

    Average rating

    5
    5 out of 5 Stars
    238 ratings
    About provider reviews

    Showing 1-6 of 55 reviews

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    • 5 out of 5 Stars
      March 26, 2026

      Earlier I had a pet scan and she didn't have the complete results yet and she took the time to look at previous scan and current scan that was available and said she doesn't notice anything but can't give me any other true report until radiology sends one and she would let me know. The next day she did let me know. How awesome she is

    • 5 out of 5 Stars
      March 20, 2026

      Dr Tsai always goes over and above to look at my tests. She even got a review by the tumor board radiologist regarding a question I had on my pet scan interpretation.

    • 5 out of 5 Stars
      March 9, 2026

      Exceptional care

    • 5 out of 5 Stars
      February 15, 2026

      Dr Tsai is a wonderful doctor. She explained things clearly, listened to my concerns and instilled confidence.

    • 5 out of 5 Stars
      January 15, 2026

      Good

    • 5 out of 5 Stars
      December 29, 2025

      Consistent and considerate care

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