Professional Summary

Education & Certifications
  • Internship: Santa Clara Valley Medical Center (2000) CA
  • Residency: Stanford University Radiation Oncology Residency (2004) CA
  • Board Certification: American Board of Radiology, Radiation Oncology (2005)
  • Medical Education: Stanford University School of Medicine (1999) CA


Practice Locations

Radiation Oncology at Blake Wilbur Building Palo Alto, CA
Palo Alto, CA

875 Blake Wilbur Drive

Palo Alto , CA 94304

(650) 498-6000

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Patient Ratings

(38 Ratings)

Overall Rating

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Friendliness/courtesy of the care provider
Explanations the care provider gave you about your problem or condition
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Care provider's efforts to include you in decisions about your care
Care provider's efforts to include you in decisions about your treatment
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The Patients Ratings and comments are gathered from our Patient Satisfaction Survey and displayed in their entirety.

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Patient Reviews

(142 reviews)

She is a good Dr
Dr. Horst, is a very caring, understand what is needed and was able to communicate very clearly and address all my doubt and concerns. She is very professional, wonderful/pleasant person to have to ease my worries and make feel very comfortable with what I am going through. I really feel confident with Dr. Horst care and work! Please share my gratitude with Dr. Horst. This was a very tough experience to have to go through again, after about ten year from the first cancer I had. Thank you
Dr Horst and her team were warm, welcoming and thoughtful and Dr Horst had clearly considered my situation and treatment options uniquely and in a very bespoke manner. Dr Horst answered all my questions very intelligently and carefully, and I feel very privileged and grateful to be receiving such skillful and thoughtful care.
She was a very nice physician and she was very professional and reassuring.
Very knowledgeable and pleasant
She is an excellent doctor
She was informative, patient and very kind . She was very willing to listen to me and answer all my questions.
Appreciated how patient Dr Horst was with my many questions and concerns about my upcoming treatment. She is very good at explaining things and was very comfortable with my asking about a product shown to help minimize skin issues in radiation patients and even knew how I could purchase the product and how it could be applied for me the first time. I like how flexible she is to try a different patient position in order to minimize reactions my skin will most likely have to radiation, as I have very sensitive skin and have had multiple issues with my surgeries in the past months in terms of allergies and skin reactions. She really listens and adapts to individual patients, I felt truly seen and heard today, and am grateful.
Dr Horst only joined the call after the resident doctor, Abass Conteh, went over the situation with me and answered many of my questions. I appreciated the thoroughness of his presentation as well as his very friendly and supportive attitude. Dr Horst added more to the discussion and clarified several issues. I appreciated her obvious expertise and candid assessment as well. Very positive experience!
Dr. Horst, is an excellent doctor who really listens, share simple information that I can understand, get my feedback and share my options based on my history and of-course the right, and advance treatment options. She responded to all my concerns and doubts with clear information. She did not rush me nor my husband when he asked her question. She certainly is knowledgeable and share the information freely. I really appreciate that she remembered me from almost 10 years and was very nice and and caring. Thank god, she was available for the this treatment again. I would gave her the best marks!! Thank you Dr. Horst.
I appreciate Dr. Horst's candor and willingness to spend time with time to answer my questions. The visit was not rushed and was very helpful. I am grateful to have her in my corner.
I was extremely grateful for my consultation with Dr. Horst! She was thorough, took a good amount of time with me without making me feel rushed, was professional and thoughtful about my concerns. She understood the content of information I needed. She offered information that enhanced my understanding. I would be delighted to have her as my doctor!
Dr Horst is a wonderful Radiation Oncologist! I have a lot of confidence in her skill and opinions as a doctor.
Excellent. Very professional, clear and concise.
She's terrific
Very thorough
Thank you, Dr Kathleen Horst!
I felt very reassured after our meeting about my current progress & treatment plan
Dr Horst left me lightweight and confident explaining the treatment and listening to all my questions and concerns till the end.
Very informative and direct, and personally was very attentive and friendly.
Thanks for flexibility
Everything was on time, and everyone was professional.
A talented, dedicated and compassionate physician. One couldn't ask for more.
Dr Horst is always engaged and takes her time with me.
She is very good with the basics which I needed to understand...a very good profession with empathy!
She explained everything I needed to know.
Dr Horst explained possible future treatments in terms that I could under stand.
Dr Horst is one of the doctors with whom you have a great sense of assurance with her care. You know she will take the extra step to be sure patients receive the very best care.
Dear Dr. Horst: Thanks. I get your take care well.
Excellent communicatior. Enjoy working with her and her team
Was good a quick visit as the doctor did not have results
Dr. Horst is absolutely the best!! She explains everything, takes the time to listen and discuss options available. Always make me feel comfortable and valued as a patient. I feel that I am in good hands as her patient.
Dr Horst was extremely thorough with her information and explaining the facts and figures. Answered my questions without hesitation and in easily understand language. Was a very good 'visit' and left me with much to think about and consider.
Dr Horst is one of the most caring, intelligent, and thoughtful physicians I have ever encountered.
Dr. Horst is absolutely amazing. She's top of her field, smart, and compassionate. I feel so much better about my cancer diagnosis after speaking with her.
I was told that she is very kind and great at explaining things. That person was Right! I felt very comfortable with Dr. Horst and I knew I could trust her. I'm glad she is going to be my doctor!
Dr. Horst is a great listener and very attentive. I am very pleased she is my doctor.
Appreciated the time she spent answering my questions. Excellent visit with her.
Dr. Horst is very knowledgeable, has excellent communication skills and style. She answered all my questions and wanted to make sure my husband and I were satisfied with her responses. Very impressive.
A welcoming smile and gentle care
Dr. Horst is just outstanding. Her Radiation team is outstanding. Dr. Horst is very attentive, very caring and answers all the Q's and concerns of the patient. Very skilled clinician with excellent Dr./patient relations. Stanford and patients like me are very lucky to have Dr. Horst on the faculty.
Always the best.
I find her to be excellent and informative.
She is the most compassionate and empathetic Dr. I know from the Women Cancer Center. She is also the only Dr. that has mapped a plan than actually gave me some positive results on my healthy status. By far I consider her one of my favorite Drs. On my Oncology team of care.
Thanks you for reviewing my case to be sure I did not need radiation at this point.
She was excellent. Explained clearly all the relevant information.
Dr. Horst is an excellent caring Dr. Very easy to talk with. She is very through. I'm very happy she is my Dr.
She is great! Dr. Horst always provides valuable information and answers my questions thoroughly.
Thank you so much ! Dr Horst, It’s been five years since my cyber knife.â ¤ï¸
A very good doctor
Dr. Horst is an excellent .
She was kind, insightful and attentive
She seems excellent. Caring and knowledgeable.
Dr. Horst and her team were fantastic.
I’ve always felt that Dr Horst gave me her full attention and listened to my concerns.
Di like Dr. Horst. She is fun to talk to and always ready to help in case there’s a problem on your health arise.
She was clear in her explanation, allowed for my questions and gave clear response. She was very professional and knowledgeable, while also being very approachable.
Dr Horst and her team have all been amazing throughout this process - they have been kind and caring and I feel I have revived the best support possible.
I liked her. She presented the information very well and answered my questions.
She and others at Stanford saved my life. She’s a rock star!
Dr. Horst was wonderful. She is kind, knowledgeable and takes the time necessary to answer all of your questions. I feel very fortunate to have her oversee my radiation therapy treatment.
Extremely thorough and displayed compassion and genuine concern. Very Positive
This was my first meeting with Dr Horst. She has a pleasant demeanor and was informative, confirming and supplementing the detailed introduction carried out by Dr Frick.
Very positive and her team always seems happy.
She is wonderful! She is kind, lovely and keeps a take your breath away schedule.
Thank you so much I Dr. Horst
Dr. Horst is professional, knowledgeable, personable, competent. She explains things well, and had plenty of time to answer my questions, some of which may have been repeat questions due to a bit of nervousness on my part. Nevertheless, she was extremely patient. She was very accommodating to my personal needs re: setting up the upcoming radiation schedule. I feel like she understands that life goes on around us despite a cancer diagnosis, and that coordinating my personal needs with medical needs is important to her.
Dr. Horst is an excellent physician. In addition she listens well and gives me an opportunity to ask questions and participate in the plan of care.
She was very friendly and informative.
Dr. Horst and her resident both responded to my questions and concerns in a professional, competent and supportive manner. Dr. Horst’s team also followed up today with links to websites that further addressed my questions.
Engaged in questions and answers, talked about overall functioning, explained research findings about an area of concern and what that may indicate. Discussed future steps and care.
Very good experience.
Dr. Horst is a wonderful care provider/dr. she listens, offers advice, had a friendly & calm demeanor.
I love Dr. Horst - Very knowledgeable very caring and compassionate. The resident and fellow present also exhibited their knowledge & were equally caring.
Dr. Horst is friendly, knowledgeable, patient in answering questions & giving information. She's great & I would highly recommend her.
Dr. Horst excellent in every way.
This provider helped save my life when I had stage III cancer so I'm very confident & optimistic that her TX plan will also be very successful now that I am stage IV cancer. Dr. Horst has SUCH positive energy, is an expert in her field; mentors others and is very compassionate. I have highly recommended her to other patients.
Dr. Horst was very patient and kindly explained all treatment options and answered all our questions.
Amazing! Kate is the best! So smart & so caring!
She was amazing, very thorough.
The doctor clearly explains all aspects of visit and follow-up, and she listens carefully to concerns or questions (and answers completely.)
Dr. Horst was excellent!
Dr. Horst is excellent! My 7th year with her - always the best and always feel so cared for by her. Kind and incredible person.
Very well pleased.
New/temporary/researcher, great care & attention.
The fellow this time was very good. The new NP was learning, & Dr. Horst is always awesome.
Kathleen is an exceptional physician! She cares about her patient provides good explanation of my medical condition, & what the research shows regarding topics that concern me & health. She is great!
Dr. Horst continues to exceed all expectations as a care provider. During this visit there was a resident/student as well - lucky him - he gets to see the highest example of care in this field.
Dr. Horst very good at explaining choices available to me & & pros & cons on radiation treatment.
I love Dr. Horst. She is a wonderful physician. She has very knowledgeable & caring staff.
Services were provided mostly by technicians.
I'm so grateful to have Dr. Horst as my health care provider. I knew I could rely on her intelligence and her compassion. Stanford is VERY lucky to have her.
I drive 360 miles (one-way) to see Dr. Horst annually because of the outstanding care and concern she has personally given tome. I cannot imagine having a care provider better than her. Absolutely, tops!
Dr. Horst is wonderful. She took the time to explain everything very clearly and answered all my questions. Highly recommended!
If you have to be sick Stanford is a great place to get help.
I would run out of superlatives to describe Dr. Horst's bedside manner. Dr. Horst is simply the best in her class!
Very good.
Dr. Horst is friendly, caring, and knowledgeable. Excellent physician!
Dr. Horst is an incredible doctor. She is caring and goes above and beyond to manage my needs.
She is an excellent doctor.
Great experience!! These people came in dr. on staff 1st went over all records and did exam. Nurse then came in went over all information and answering families questions. Then Doctor Hurst came in and went over options and answered question.
Dr. Horst is a good doctor.
Always feel well cared for by Dr. Horst!
Dr. Horst is such a caring and compassionate doctor. A great listener, who always puts her patients first. A+. Her nurse coordinator, Christy is fantastic!
Dr. Horst always answered all my questions before she left the room.
Dr. Horst is great. She is very kind & caring. I was recommended to her & I'll do the same for someone else! Love her.
I've always been treated with respect, dignity, kindness. I've been given clearly explained options; treatment provided expeditiously. I don't know how they manage to give each patient full attention AND run on time!
So very happy with Dr. Horst. She always accommodates my appt. to coincide with my oncologist, same day appt. As we travel almost 2 hrs. ea. way. Appreciate her. Very good Doctor.
Dr. Horst's explanations are crystal-clear. She is attentive to concerns and thorough and understanding her her responses to questions. She provides exceptionally positive care.
Very good continuity of care & knowledge of past personal medical history even past providers that have moved on beyond Stanford & how they are doing. 9. Known both many years now.
Never felt hurried.
Dr. Hurst returned calls ASAP & caring, too.
Outstanding information. Caring staff, professional.
Dr. Horst made it possible for me to attend my daughter's wedding - truly amazing.
Dr. Horst is VERY caring.
Dr. Horst is excellent - patient, kind, knowledgeable.
Dr. Horst so excellent. Makes me feel secure.
Dr Horst always keeps me informed of current info related to our study. I love her, she is the best!
Dr. Horst makes her patients feel comfortable, unafraid, and well cared for in every way. She is a superb physician, and I feel privileged to be her patient.
Outstanding care - Attentive, caring, professional, calm, reassuring, just plain nice person.
Dr. Horst is great -
Dr. Horst was excellent - very knowledgeable, patient, kind, caring. She provided lots of great info to help me make my decision about treatment.
Dr. Horst & wonderfully sharp & caring always.
Dr. Horst is superb at what she does and how she relates to her patients. I have also observed her taking time to teach her residents & include them in discussion.
I look forward to my annual visits.
I actually came back to this provider multiple times for care due to my lack of confidence in my own provider in Santa Cruz. Love Dr. Horst!!!
Dr. Horst is a wonderful doctor. She cares her patients just like family.
Kate Horst, her Intern & the Resident were all thorough & pleasant. I liked them all a lot. Much, much better than my previous experience w/Stanford Radiation Oncology 12 yrs. ago.
Both Dr. Hortz and her resident, Dr. Shafer were very helpful- "dream team!"
Outstanding level of respect, care and knowledge given - Dr. Horst & Dr. Shah were compassionate and addressed our concerns thoroughly & thoughtfully.
Dr. Horst & Dr. Shah are excellent. As is Christy (RN) in radiation oncology.
Dr. Horst is wonderful, caring physician. Answered all my questions.
Very good experience.
She always showed compassion, but this last visit was best.
Great experience! Got answers to all my questions.
Dr. Horst is excellent!
Dr. Horst went out of her way to think through my clinical condition and gave me a very thorough easy to understand, thoughtful explanations.
I have had exceptionally wonderful treatment for the breast cancer in 2007 and all the follow up since then.
Very good experience. Dr. Horst is the best!
Dr. Horst has always gone way beyond what is necessary. She has excellent. Suggestions for my continuing care.
She is best ever! Compassionate & very good @ explaining shocking news.
Dr. Horst is exceptional. She goes beyond her specialty & is concerned w/the whole path of treatment.

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