Dr. Katherine Ann Thyssen, DO
Internal Medicine
10085 Double R Blvd, Suite 220
Reno, NV 89521 Directions
4.9 out of 5
2,456 verified ratings
2,456 Ratings, 1,269 Comments
The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.
Aug 16, 2026
Outstanding! Love this place.
Aug 16, 2026
Dr Thyssen is great. She is an exceptional person and a great doctor.
Aug 15, 2026
Dr. Thyssen is the best Dr. I have ever had in my life!
Aug 14, 2026
DR Thyssen was most helpful and informative I only wish we had her as a provider years ago
Aug 14, 2026
New location for Renown/ Kaiser. There was a little wait in reception room as the only receptionist seemed overloaded with phone calls. She was very nice and knowledgeable with lots of experience. No problem, I’m not complaining.
Aug 14, 2026
Dr Thyssen always knows about me; she is a listener and she explains everything to me. She is always very positive and very good in her care of me.
Aug 12, 2026
I love Dr Thyssen !!!! She’s the BEST !!
Aug 12, 2026
Love Dr. Thyssen
Aug 12, 2026
No problem. Good visit
Aug 12, 2026
I felt very comfortable with Dr. Thyssen. She was not only friendly but very knowledgeable and thorough.
Aug 12, 2026
I always look forward to going in and meeting with Dr. Thyssen. She is so easy to talk to. I am very confident with the care that she gives me.
Aug 11, 2026
Dr. Thyssen is the absolute best doctor in Reno.
Aug 10, 2026
I am very pleased to be able to see a doctor who has training and specializes in geriatric medicine.
Aug 10, 2026
My first visit-I left with a great feeling and hope- things were explained and I was listened to. Questions were answered I was very impressed
Aug 8, 2026
This new doctor was very open and friendly and efficient and listened to the reasons why I am a unique patient
Aug 8, 2026
Kaiser Permanente Sparks location and Dr. Thyssen were amazing
Aug 7, 2026
Everyone was wonderful you guys are the best thank you
Aug 7, 2026
Happy to have Dr. Thyssen for my GP!!! She's the best!
Aug 7, 2026
Dr. Thyssen and her colleagues are most attentive. Since November 2024, my bride and I have had significant medical issues and Dr. Thyssen and all the medical professionals are exceptional in their interaction with us. We are most pleased with Renown and Sr. Care Plus.
Aug 7, 2026
My appointment, allotted time, has gone from 45 minutes with my doctor to 15 minutes with Kaiser Permanente. Sounds like a damn German beauty parlor, which is what I think of them. 15 minutes is what they cut me down to after years of 45 minutes. How do you suppose I feel?
Aug 7, 2026
This was a new Dr/office/company for me. The people here were very kind.
Aug 6, 2026
The Doctor was very helpful. She answered all my questions.
Aug 6, 2026
I was very comfortable my new doctor. Thank you
Aug 6, 2026
My care provider is Excellent.
The facility has front desk staffing problems.
I came and was in a line of 4 while the only receptionist was taking care of a patient checking in and asking dozens of questions about Kaiser.
One day I arrived 15 minutes before my appointment and the doors were locked and nobody around.
Aug 6, 2026
Very good
Aug 6, 2026
I’m very satisfied with the health care I’ve received for the past twenty or so years.
Aug 5, 2026
Dr. Thyssen is the best gerontologist!
Aug 5, 2026
After meeting with Dr. Thyssen I was very impressed with her knowledge and feedback regarding my health.
I think she will be a wonderful doctor to have.
Jul 31, 2026
I think Dr. Thyssen is going to be a very good fit for me as my new primary care physician. She was very friendly, easy to converse with, and knowledgeable.
Jul 31, 2026
Beautiful and comfortable waiting room
Jul 31, 2026
This is a teachable moment. I am always grateful for Dr. Thyssen's care. I just wanted to say that she asked if I wanted to have a ear lavage and I think because of the ear lavage I developed severe vertigo the next day and I'm still experiencing vertigo. So I think as a teachable moment either the doctor or the nurse administering the ear lavage should tell the patient whether they should have this, that the risks involved can be vertigo because I would not have chosen to do it because I missed out on a tennis tournament that I had signed up for this week because I was too busy to play any kind of sports. So that's what I was, that's the only information I'd like to give at this time. Thank you.
Jul 31, 2026
Always exellent care
Jul 30, 2026
Dr Thyssen is the best Dr I have ever had, with any plan anywhere. She takes time to instill my confidence that I am getting the best care always. She is smart, knowledgeable about my issues, and kind. I have felt good about Hometown Health/Senior Care Plus. I do not feel good about belonging to Kaiser. After all these years with Renown, I don’t look forward to considering other plans.
Jul 30, 2026
Was treated with the utmost respect
Jul 30, 2026
Dr Thyssen is the best
Jul 29, 2026
Dr. Thyssen and her assistants are the best. Do everything you can to keep her here for many years to come.
Jul 25, 2026
Dr Thyssen was very thorough, unhurried and spent nearly one hour getting to know me and going over all my prescriptions and why I was receiving them.
I was extremely pleased with my new primary care physician.
Jul 25, 2026
I am concerned about how Kaiser will affect my care - fewer and shorter appointments. I fear the provider I love will choose to go to another facility.
Jul 25, 2026
This was a meet and greet first appointment with my new PCP. I was very impressed with everyone.
Jul 24, 2026
Dr. Thyssen and her team that she had selected are the best in this whole area. I would never leave Reno as long as Dr. Tyson is here. She's saved my life a couple times and I think she'll do it again. I'm very happy to have Kaiser a part of the merger with Renan and I certainly hope that Dr. Thyssenremains with you for the long term.
Jul 13, 2026
Dr. Thyssen is always helpful and tries to explain my situation. She is always thorough and tries to help me with preventative measures. I always trust her and feel safe with her advice.
Jul 13, 2026
Very happy to have Dr Thyssen as PCP
Jul 13, 2026
The blood drew was aa very pleasant experience.
Jul 11, 2026
I’m going to be 70 next month and Dr Thyssen is the best doctor I have ever had.
She is the BEST!!! Please don’t make any changes to much care team.
Jul 10, 2026
Appointment on time. Covered all of my items with Dr. Thyssen.
Jul 10, 2026
Kathryn Tyson is a very knowledgeable, compassionate, wonderful doctor.
Jul 9, 2026
This is the first provider in 9 years who was thorough.
Jul 9, 2026
Wonderful experience always
Jul 4, 2026
Dr Thyssen is fantastic. Please keep her on your staff. I would be devastated if she were gone. She is the best doctor I have ever seen.
Jul 4, 2026
Great experience, great doctor.