Dr. Katherine Ann Thyssen, DO
Internal Medicine
10085 Double R Blvd, Suite 220
Reno, NV 89521 Directions
4.9 out of 5
2,545 verified ratings
2,545 Ratings, 1,313 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.
Sep 26, 2026
Always a. Excellent experience going to see Dr. THYSSEN and het assistant, Maria.
Sep 26, 2026
Overall excellent..thank you
Sep 25, 2026
Just dropped in to see what condition my condition was in. Doc T is doing one heck of a fine job staying ahead of weird old me and assorted various infirmary stuff
Sep 25, 2026
provider was very knowledgeable
Sep 23, 2026
I am currently very happy with the care provided by my Renown providers.
I feel that my primary care provider cares about my health and well-being.
Sep 23, 2026
Dr. Thyssen has been taking of me, my health, and issues as I age for some time and I find her to be terrific, she is caring and through in her care for me
Sep 22, 2026
Dr Thyssen is the best doctor I have ever had, and I'm 72 years old
Sep 20, 2026
Dr. Thyssen is very knowledgeable regarding my meds and conditions and made me feel very confident in her.
Sep 19, 2026
After being a patient with Dr Jennifer [ ] , for 35 years I thought it would be very hard to replace her. BUT I have found an exceptional doctor to move on with.
Doctor Katherine Thyssen. ..
She is exactly what I needed for my primary Doctor! So Thank You⭐️
Sep 18, 2026
First time seeing this Doctor, she was very knowledgeable, knew my medical history, and was very personable!
Sep 18, 2026
Established with dr thyssen. She was so attentitive and answered all my questions and concerns.
Sep 18, 2026
Great experience with my new
Provider in all aspects.
Sep 16, 2026
Love my doctor.
Sep 16, 2026
We sooo appreciate Dr. Katherine Thyssen!!!
She's the best doctor we've ever had!!!
Sep 16, 2026
It was great! I’m looking forward to
having Dr. Thyssen as my primary physician.
Sep 16, 2026
It was a wonderful visit.
Sep 16, 2026
Dr Thyssen is most knowledgeable and concerned with my care. I have already referred people to her. She is the reason that I am staying with the changes to Kaiser.
Sep 15, 2026
Dr. Thyssen is a superb geriatric internist. She listens, is very thorough, always is familiar w/ my history and ongoing issues. She treats proactively and compassionately .
Sep 15, 2026
We have built a relationship over the years and she has my trust cause she answers all my questions. She is honest and tries her best to give me the right advice based on the test results. I understand she is not a magician and cannot predict what will be and with this in mind, she is my trusted doctor thru my old age. Thank you, Dr. Thyssen
Sep 12, 2026
My doctor is always kind and understanding about my health issues.
Sep 12, 2026
Dr Thyssen has been my PCP for years. I feel heard and valued with her. I trust her completely with my medical care.
Sep 8, 2026
Dr. Thyssen and her associate, Marie, are wonderful. I couldn't ask for better care.
Sep 8, 2026
Very pleased with communication
Sep 8, 2026
I like the time spent explaining my lab work and my health. I am very satisfied with my visit.
Sep 8, 2026
I was thrilled meeting Dr.Thyssen. She was so easy to talk too. I'm so happy with my choice.?
Sep 5, 2026
Doctor was outstanding I am going to like her a lot very outstanding
Sep 5, 2026
I thought she was great. She knew everything that I had wrong with me and she scheduled more tests for me. Thank you.
Sep 4, 2026
Excellent service!
Sep 4, 2026
There has never been a problem or complaint on my part. If I have a question I’ve always been listened to and never felt rushed. I am very very happy with my caregiver.
Sep 3, 2026
Every one acted very professional
Sep 3, 2026
Great Doctor and nice office, Pleasant place to go
Sep 3, 2026
Dr. Thyssen is amazing. I have been seeing het for almost 7 years and she is, by far, the best physician I have ever had.
Aug 31, 2026
Very caring dr!
Aug 28, 2026
I like Dr. Thyssen a lot.
She listens and takes time to explain things.
Aug 25, 2026
My primary care is Katherine Thyssen and I've had her as my primary care for about the past two years. She is top of the line and keeps so current in her medical knowledge and all of that is so appreciated. Thank you.
Aug 23, 2026
The Dr was thorough and patient. She really listened and offered many options to choose from.
Aug 23, 2026
thank you
Aug 21, 2026
They are the best, never had a bad experience. Dr Thyssen is the absolute best Doctor I’ve ever seen.
Aug 21, 2026
awesome!
Aug 21, 2026
She is amazing! I haven’t experienced anything similar in a LONG time -if ever!
I will definitely follow her to the other location!
Aug 21, 2026
Excellent service..
Aug 20, 2026
made me feel comfortable..that made me relax..I was able to relax..very important
Aug 20, 2026
Very satisfying; I’m pleased to have Dr Thyssen as my GP.
Aug 20, 2026
Dr. Thyssen was thorough with her assessments, and with Q and A regarding tests, and treatments.
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.