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
    248 ratings
    About provider reviews

    Showing 1-6 of 50 reviews

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    • 5 out of 5 Stars
      December 29, 2025

      Consistent and considerate care

    • 5 out of 5 Stars
      December 18, 2025

      Dr Tsai was a pleasure to meet in person. She's very knowledgeable and explained the potential treatment roadmap and opportunities with empathy.

    • 5 out of 5 Stars
      December 18, 2025

      Very pleasant visit.

    • 5 out of 5 Stars
      December 14, 2025

      We feel extremely fortunate to be able to confer with Doctor Tsai, frankly we would be lost without her.

    • 5 out of 5 Stars
      December 4, 2025

      My care team is stellar! I completely trust them with their care of me. I am so grateful to have Dr. Tsai and her excellent staff on my team.

    • 5 out of 5 Stars
      December 4, 2025

      My doctor has so much experience and uses it to help all her patients she knows what is going on and helps me through it

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