Portrait of Karen Chee
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Karen Chee, MD

Hematology and Medical Oncology • Medical Oncology (Gastrointestinal Cancer)
Cancer Center San Mateo
650-341-9131
Portrait of Karen Chee
Portrait of Karen Chee
ucsf logo

Karen Chee, MD

Hematology and Medical Oncology • Medical Oncology (Gastrointestinal Cancer)
Cancer Center San Mateo
650-341-9131

On this page

About me

Dr. Karen Chee is a hematologist and oncologist who provides general cancer care while also specializing in cancers of the gastrointestinal organs and hematologic benign and malignant disorders.

Chee's research focuses on developing treatments for a variety of neoplasms (abnormal growths that may be cancerous). She has authored and co-authored multiple papers on the topic.

Chee earned her medical degree at the University of California, Davis, where she also completed a residency in internal medicine and a fellowship in hematology and oncology.

Chee is a member of the American Medical Association, California Medical Association, American College of Physicians, American Society of Hematology and American Society of Clinical Oncology.

Chee plays seven musical instruments and is an avid and intrepid traveler, despite having once been attacked by a monkey on a trip to China.

Education & training

Board certification

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

Fellowship

  • Hematology - Oncology, Univ of CA Davis Medical Center GME

Residency

  • Internal Medicine, Univ of CA Davis Medical Center GME

Internship

  • Internal Medicine, Univ of CA Davis Medical Center GME

Degree

  • MD, University of California-Davis School of Medicine

My expertise

Locations

    Reviews

    Average rating

    5
    5 out of 5 Stars
    787 ratings
    About provider reviews

    Showing 1-6 of 232 reviews

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    • 5 out of 5 Stars
      August 29, 2026

      Good discussion. Decision tree discussed. Good plan of approach

    • 5 out of 5 Stars
      August 28, 2026

      Dr. Ana is wonderful, she always listens to you and answers your questions. I wish more providers were like her

    • 5 out of 5 Stars
      August 26, 2026

      Dr. Chee is a fantastic provider - perhaps the best I have used. I would send anyone to her who was in need of such care, and I do not refer lightly.

    • 5 out of 5 Stars
      August 20, 2026

      My appointment was conducted with exemplary professionalism. I felt secure, well attended to, and departed with a sense of satisfaction.

    • 5 out of 5 Stars
      August 13, 2026

      I recommend UCSF to everyone who receives a cancer diagnosis.

    • 5 out of 5 Stars
      August 11, 2026

      Dr Chee is an amazing caring, friendly, professional ,. What a wonderful medical world It would be If all physcians had her bedside manner, Up to date Info on their specialty, ability to be patient when the patient Is asking for Information . I am always treated with respect and courtesy.

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