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Karen Chee


Musician and adventurer

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

    UC Davis School of Medicine, 2001

  • Fellowships

    UC Davis, Hematology and Medical Oncology, 2007

I love life and my work as a doctor, and hope my enthusiasm helps my patients when they need it most.

Where I see patients (4)

    My reviews


    Overall Experience
    766 Ratings
    About our process
    Dec 02, 2023
    Dr Chee is very amazing and thoughtful.
    Dec 01, 2023
    Dr. Chee has ALWAYS provided intentional compassionate and expedient care and has always been very attentive.
    Nov 30, 2023
    Dr. Chee is awesome.
    Nov 29, 2023
    Very good
    Nov 28, 2023
    I am fortunate to have Dr. Chee to be my oncologist. She is thorough and she pays attention to details. Her compassion helps me to raise my spirit.
    Nov 28, 2023
    I would give Dr. Karen Chee a 10 if I could. I feel so fortunate to have such a talented caring health care provider.
    Nov 24, 2023
    Been seeing Dr.Chee for fifteen years. I have never had a bad experience. She is a model for what a doctor should be.
    Nov 16, 2023
    Yes I will recommend to olther
    Nov 15, 2023
    Dr. Chee is an excellent physician. She explained my condition in detail proved options and was personable.
    Nov 05, 2023
    Dr Chee is the best! She is my favorite doctor of all time and has helped guide me through two different prognoses.
    Nov 03, 2023
    Love Dr Chee
    Nov 01, 2023
    Dr. K. Chee is Excellent ! !
    Oct 27, 2023
    1st blood doctor who gave us Enoxaparin option with injections versus other warfarin and others
    Oct 22, 2023
    I'm feeling the care and compassion
    Oct 17, 2023
    Dr. Chee made me feel at ease and took her time to explain what may be going on with my body.
    Oct 15, 2023
    We discussed labs and Disability always helpful and caring
    Oct 15, 2023
    Excellent discussion and questions were answered Doctor Is brillant with a wonderful bedside manner.
    Oct 14, 2023
    Dr. Chee is a fantastic doctor. Caring and always has my best interest to of her mind
    Oct 13, 2023
    Dr. Chee is outstanding! She always listens to me and addresses all my concerns. She is very knowledgeable about my condition and guides me in the right direction.
    Oct 13, 2023
    Dr. Chee was very thorough in reviewing my condition explaining options asked for my input and asked my questions. In general I would highly recommend her to others.
    Oct 12, 2023
    Dr Chee is a wonderful physician I'm so happy she is my attending physician.
    Oct 07, 2023
    Dr. Chee is amazing. Satisfied with the care given
    Sep 21, 2023
    Best oncologist ever!
    Sep 19, 2023
    Do. Chee is wonderful- kind caring and very knowledgeable
    Sep 13, 2023
    Dr. Karen Chee is the best!
    Sep 11, 2023
    Very very happy with my care provider.
    Sep 09, 2023
    Karen Chee da BEST!
    Sep 09, 2023
    Dr. Chee is very good. She addressed all my concerns.
    Sep 08, 2023
    Very impressed with my care under Dr. Chee
    Sep 02, 2023
    Dr. Chee is the BEST! She is caring knowledgeable and thoughtful. She explains things in a way that are easily understood and informs about the necessary next steps. She is FANTASTIC and extremely thorough! She is AWESOME!!!
    Sep 02, 2023
    The team that work at this place are ver profesional. Period.
    Aug 31, 2023
    Dr. Chee was fantastic. She listened to my concerns allowed me to participate in the decision-making and validated all of my concerns. I felt heard and respected.
    Aug 25, 2023
    I have had Dr Chee since 2011 she is very good and never had a problem with her EVER
    Aug 24, 2023
    Excellent doctor explained all options in details made me feel at ease I was very nervous and scared she was able to calm me down. Very caring and knowledgable.
    Aug 22, 2023
    For cancer patients I think it would help if someone played the role as a quarterback. I wasn't sure about what I should do next in the process after the completion of the first set of chemo. But all of a sudden I need to contact the surgeon to let him know I'm going to be finished with the fourth round. And my oncologist had to put in an immediate order for a CT scan to ensure I would be able to get to surgery in the next 4 - 6 weeks. Sometimes scans are fully booked many weeks out and may delay the time a patient can get to surgery. It would be good if someone played a lead role in the next steps I should be taking in the process and the timing of when these things should take place. Or better yet playing a role in initiating the next steps between the surgeon oncologist and coordinating the scans that would need to take place after chemo and before surgery.
    Aug 19, 2023
    If I could mark higher than 5 I would!
    Aug 18, 2023
    Very satisfied with my care from all staff.
    Aug 13, 2023
    Dr Chee is excellent at welcoming and immediately making you feel comfortable. She is SO knowledgeable but is patient while you take in the information and immediately answers and clarifies. I know I am in the most excellent of hematology experts.
    Aug 09, 2023
    I would recommend Dr. Chee and her staff to ANYONE and EVERYONE. They are all simply amazing.
    Aug 04, 2023
    Honestly I hope to not need to refer someone as this would mean they have cancer
    Jul 29, 2023
    Dr. Chee is a wonderful person and a great Doctor!
    Jul 27, 2023
    Very happy with my care provider
    Jul 24, 2023
    Dr. Chee is FANTASTIC!!! She is very knowledgeable caring thoughtful and explained my health situation and the next steps in an easy way to understand. She is the BEST!!!
    Jul 24, 2023
    I have been seeing Dr. Chee for 15 years. She has always had compassion and an upbeat personality. Her treatment recommendations have been very successful. As of today I show no signs of cancer.I see her every four months and look forward to the visit.
    Jul 23, 2023
    Dr Chee is great! She instills confidence and is so positive. I feel cared for and included in my ongoing health needs.
    Jul 23, 2023
    Dr. Chee is top notch. I highly recommend her.
    Jul 20, 2023
    Dr. Chee is awesome! When she comes in to see me she has already looked at all my blood tests and knows exactly what is good or concerning. She explains her concerns and what she is watching for she also helps to separate out what is CLL and what symptoms might be related to some other issue or comorbidity. I am grateful because how can a patient know if CLL is causing their symptoms or not so many symptoms are similar. I have no idea what symptoms are related to CLL or something else. Dr. Chee is very clear about what is and is not CLL and that helps me better understand what is going on. My only wish is that Dr. Chee was not so very busy she spends time with me but she talks so fast it takes me time to figure out what she is really telling me. This is not her fault I am not in the medical field so it takes me time to understand all she shares with me. I tell you I feel blessed to have Dr. Karen Chee managing my CLL. She is EXCELLENT!!!! I hope I stay in "watch and wait" for years to come but if I don't I know I am in good hands...
    Jul 20, 2023
    Dr. Chee is without a doubt the best doctor I have ever had. I can't thank her enough for the time she spends giving me detailed thoughtful and understandable information about my questions.
    Jul 18, 2023
    Dr. Chee is an excellent oncologist who listens to all my concerns and provides explanations that are clear concise and understandable.
    Jul 14, 2023
    Dr Chee is Wonderful!!!
    Jul 13, 2023
    Dr. Chee is brilliant with a wonderful bedside manner and positive attitude
    Jul 09, 2023
    I think doc was in a bad mood
    Jun 25, 2023
    We are very impressed with Dr. Chee's knowledge professionalism and her friendly caring way. She takes as much time as needed to answer all questions and fully explain all options. I feel that I am in the best of care!
    Jun 24, 2023
    Dr. Chee is AMAZING!!! She is positive! She is a great listener! She gives great advice! And she gives thorough and easy to understand explanations of how my treatment is progressing along with my results in an easy to understand way that is encouraging! Dr. Chee is totally one of a kind!
    Jun 21, 2023
    Dr Chee is easy to talk with. Explains well. She is caring forthright compassionate professional and very kind. I have great trust in her.
    Jun 17, 2023
    Jun 13, 2023
    Dr Chee is wonderful!
    Jun 13, 2023
    Very happy with Dr. Chee. Kind friendly and caring.
    Jun 08, 2023
    Jun 03, 2023
    Dr. Chee is a good doctor who listens to her patients.
    Jun 03, 2023
    Jun 01, 2023
    I actually enjoy my appointments with Dr. Chee which is quite extraordinary to say about a doctor's appointment!
    May 27, 2023
    Dr Chee is great. Listens to my concerns and answers all me questions. Very friendly.
    May 27, 2023
    My appointment with Dr. Chee was an annual wellness check. She addressed this as well as a new health issue. In doing so she was reassuring thorough in her explanation of the issue next steps and plan. She took the time to be sure I understood the concern and plan. Dr. Chee is an excellent knowledgeable clinician who is friendly active engages and shows high caring capacity. I would recommend her to friends and family in need of an oncologist.
    May 26, 2023
    Dr.Karen Chee will always be the first person in my mind to refer when someone needs her specialties!
    May 25, 2023
    The last question is inappropriate. People do not ask me for my recommendation to hematology/oncology experts.
    May 25, 2023
    Very carrying lady.
    May 20, 2023
    Professional knowledgeable care answering all our questions and giving of her time to outline options.
    May 13, 2023
    Very professional. Good listener. Asked questions
    May 12, 2023
    Dr. Chee is AMAZING! She is extremely positive informative thoughtful and caring. She explains everything in a manner that is easy to understand and is very thoughtful!
    May 12, 2023
    Dr Chee is an excellent physician.
    May 05, 2023
    Dr. Chee is great. The san mateo office is terrific
    May 03, 2023
    Her knowledge of my problem gave me confidence in her
    Apr 23, 2023
    Recommending to all friends
    Apr 19, 2023
    Better than Very Good on the part of Dr. Chee!
    Apr 18, 2023
    I fell she is the best
    Apr 14, 2023
    Dr Chee is an excellent doctor & always listens to my concerns.
    Apr 04, 2023
    One of my favorite doctors. Dr. Chee is an extremely good listener and always spends enough time with me.
    Mar 28, 2023
    Dr Chee is the kindest and informative doctor around. From our first meeting I felt so comfortable and had every faith in her directing my health journey. She is my favorite doctor ever!!
    Mar 24, 2023
    Great service!
    Mar 14, 2023
    VERY caring & compassionate
    Mar 05, 2023
    I feel confident with the care I received from Dr Chee
    Mar 04, 2023
    Everything went well
    Mar 03, 2023
    Dr. Chee is not only extremely knowledgeable her manner of providing care is simply the best on all counts.
    Mar 02, 2023
    Knowledgeable BUT this was my first visit so will know my situation better in the future.
    Feb 24, 2023
    Dr Chee is very easy to communicate with
    Feb 23, 2023
    Dr. Chee is extraordinary!
    Feb 17, 2023
    Dr Chee does a good job letting me give my opinion and input about my treatment.
    Feb 14, 2023
    Dr. Chee is very easy to talk to and explains everything very clearly.
    Feb 10, 2023
    Dr. Chee is FANTASTIC! She is the BEST! She's positive; informative; a great listener; and explains things clearly and understandably! I would definitely recommend her to anyone in a similar situation to mine.
    Feb 07, 2023
    Dr Chee is very informed and intelligent. She breaks down the blood results in simple terms. Dr. Chee is very friendly and professional. She answers all of my questions.
    Feb 07, 2023
    Dr. Chee has been Oncologist since 2013 when I was diagnose with breast cancer. Dr. Chee has always explained the situation and what procedures I should follow. It is a pleasure tp be her patient and I always look forward to seeing her.
    Feb 04, 2023
    Excellent provider who listened and explained what the plan was
    Feb 02, 2023
    Dr. Chee is wonderful - caring empathetic and always cheerful
    Feb 02, 2023
    Exceptional Care provider. Thorough and such compassion very very knowledgeable. Goes beyond the scope of what's happening or going on with the patient. Didn't leave a stone unturned. It was Outstanding visit.
    Feb 01, 2023
    If I end up with bad diagnosis I will get good care based upon this initial visit
    Jan 29, 2023
    Jan 29, 2023
    Dr Chee is unparalleled in her field of medicine and is an amazing human being
    Jan 27, 2023
    Dr Chee is a wonderful physician very professional caring interested and involved in my care.
    Jan 27, 2023
    Dr. Chee explains medical condition very well in a way that is very easy to comprehend. She is very thorough and makes sure all my questions are answered satisfactorily. Her manner of speaking eases any anxiety I may be experiencing during visit.
    Jan 27, 2023
    Dr. Karen Chee is spectacular!!!!So thankful to have her as my Doctor!!!!
    Jan 26, 2023
    Warm caring & intelligent!
    Jan 26, 2023
    Wish all my Dr appts were as good as UCSF and Dr Chee
    Jan 24, 2023
    Thank you
    Jan 19, 2023
    Dr. Chee is amazing! She is caring and thoughtful as well as knowledgeable. Overall she is awesome! She explained in detail what my treatment process would be in way that I could easily understand.
    Jan 16, 2023
    I love Dr. Chee !
    Jan 14, 2023
    Dr. Chee is articulate concise and she has a good sense of humor!
    Jan 09, 2023
    Dr. Chee's is the best!!!
    Jan 07, 2023
    The staff and drs are great.
    Jan 04, 2023
    Great staff. Very knowledgeable. Very nice
    Jan 04, 2023
    I really like Dr Chee she is easy to talk to and gave me good advice . She was very thorough in making sure I had an an appointment with internist to make sure we were checking all areas of why I had to see her in the first place .
    Dec 22, 2022
    Excellent care provider
    Dec 13, 2022
    Dr. Chee is always helpful and explains my blood work to me so that I understand. I see her twice a year. Alway kind and friendly.
    Dec 09, 2022
    Very knowledgeable. Listened to my concerns and took the time to answer them.
    Dec 09, 2022
    Very pleasant and knowledgeable
    Dec 06, 2022
    Dr. Chee was AWESOME! She explained my situation in depth detailing the treatment steps in a way that I clearly understood. Dr. Chee is very knowledgeable professional and kind!
    Dec 04, 2022
    Dec 02, 2022
    I love dr.chee !!!!!!
    Dec 01, 2022
    Sorry but nobody ever asks me to refer them to a hemonc consequently the likelihood of me recommending this care provider to others is very poor indeed although she is an excellent provider.
    Dec 01, 2022
    Dr Chee is an angel!
    Nov 30, 2022
    My first visit with Dr Karen Chee. I feel very fortunate to have as my doctor.
    Nov 21, 2022
    Dr. Chee make me feel comfortable and welcome there.
    Nov 21, 2022
    I've already recommended her.
    Nov 17, 2022
    Dr. Chee consistently goes above and beyond!
    Nov 03, 2022
    Dr. Chee is excellent! She even knew and had already reviewed my chart and had my chart MEMORIZED!!! ALL THE BLOOD TESTS. I was very very impressed with her kindness and knowledge. O felt great full she is my doctor if I end having to have treatment.
    Nov 03, 2022
    I would give Dr. Chee 5+. She is extraordinary but I'm sure you know this already.
    Nov 01, 2022
    Dr Chee is one of my favorite healthcare providers. She is easy to talk to gives clear and easy to understand answers to my questions and is very knowledgeable.
    Nov 01, 2022
    She came highly recommended and so far has shown why
    Oct 21, 2022
    Dr. Chee is the best!
    Oct 17, 2022
    I love Dr. Karen Chee and I trust her.
    Oct 16, 2022
    Dr Chee is very easy to talk to.
    Oct 12, 2022
    I feel good every time she talks to me she is very caring
    Oct 11, 2022
    I feel very easy when I see Doctor Chee she goes above and beyond the Best:)
    Oct 10, 2022
    Dr. Chee's communication skills were excellent. Great bedside manners and answered all my questions .very factual and informative discussion. Great doctor and positive.
    Oct 08, 2022
    Provider is friendly and professional makes you feel comfortable to ask questions
    Oct 01, 2022
    Dr.Karen Chee was Great ! !VERY helpful & encouraging.
    Sep 28, 2022
    Dr. Karen Chee is wonderful
    Sep 27, 2022
    Excellent provider with detailed instructions and information. I am very happy to hear the provider's advice and will continue to follow her advice
    Sep 27, 2022
    Dr Chee is the best! She is so thorough and always thoughtful. She takes the time to listen to all concerns.
    Sep 25, 2022
    Sep 23, 2022
    Dr Chee was amazing.
    Sep 15, 2022
    My visit with my provider are always excellent service
    Sep 14, 2022
    No one has ever asked me for a referral to hematology practice.
    Sep 13, 2022
    We love Dr Chee
    Sep 10, 2022
    My care provider explained to me the reasons why and the importance of my going to the hospital in a very caring way.
    Sep 06, 2022
    Dr. Chee is fabulous. She always contacts me to let me know about test results she listens carefully to me and answers my questions without talking down to me.
    Sep 01, 2022
    Sep 01, 2022
    My doctor is perfect. Reaching her office is the problem.
    Aug 24, 2022
    We are very happy to be with UCSFThank you
    Aug 21, 2022
    I was very satisfied with my care and treatment
    Aug 18, 2022
    Dr. Chee is everything I wish for in an oncologist
    Aug 17, 2022
    Dr. Chee is patient kind knowledgeable and explains things very well always listening to my responses and questions and addressing same.
    Aug 16, 2022
    Received excellent service all around from doctor Chee
    Jul 25, 2022
    Outstanding physician
    Jul 13, 2022
    All good
    Jul 08, 2022
    May 07, 2022
    Dr Chee walks on water she is the best
    May 06, 2022
    Karen Chee is the best!
    May 02, 2022
    Dr. Chee was absolutely awesome. Loved her and would enthusiastically recommend her to friends and family.
    Apr 26, 2022
    The provider explained the general landscape of my health issue.
    Apr 23, 2022
    Doctor explained treatment plan very well.
    Apr 05, 2022
    Dr Chee is an excellent communicator
    Mar 28, 2022
    I can't speak highly enough about Dr. Chee. She is kind compassionate well-informed and she shares her expertise without talking down to me. I can't say enough good things about her. I'm very very grateful for her care.
    Mar 19, 2022
    Dr Chee shows compassion and lots of empathy. She's very professional and allows my daughter who is not medically trained to understand our direction and my therapy. Dr Chee is very knowledgeable and communicates well with lots of patience for questions.
    Mar 17, 2022
    Dr Chee is outstanding She greeted me and my daughter as if old friends. She went on to basically give us a tutorial on protein spikes and anemia explaining it in the clearest terms. Then she related that information to my newly learned condition. Dr Chee was so very attentive to our questions and concerns enough to allay anxiety for the time being. She prescribed blood test for immediately and for 4 months later. She assured me I would hear from her with the results no later than 3 business days. And very important she is the only doctor that has tied together some of a confluence of newly learned conditions. Because of this very successful appointment I know I will receive the best of care from Dr Chee going forward.
    Mar 12, 2022
    Mar 11, 2022
    It is too early to discuss treatment options or follow up care. (No diagnosis yet)
    Mar 08, 2022
    Dr Chee is always so attentive caring and kind. So blessed to have her as my oncologist.
    Feb 26, 2022
    I was very pleased with our very first appointment with Dr. Chee. She was very attentive and concerned about my mom given her overall health and age. She explained issues encountered and offered suggestions for my her subsequent care. She was quick to suggest blood work and advised me of radiologist recommendations. I would definitely recommend Dr. Chee to otheres.
    Feb 14, 2022
    Dr Chee was thorough kind and explained things in a way I understood.
    Feb 08, 2022
    Minor errors in the visiti notes
    Feb 08, 2022
    Dr. Chee is so kind caring and is so thorough in all of our interactions. She is the best!