Dr. Katherine Ann Thyssen, DO
Internal Medicine
10085 Double R Blvd, Suite 220
Reno, NV 89521 Directions
4.9 out of 5
2,180 verified ratings
2,180 Ratings, 1,146 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.
Mar 28, 2026
Dr Thyssen really cares!
Mar 27, 2026
Doctor Thyssen and her staff are caring and supportive.
Mar 24, 2026
Dr Thyssen is the best of the best, we are more than satisfied with her.
Mar 24, 2026
Dr Thyssen is the best doctor I have ever seen. She is so knowledgeable and caring.
Mar 24, 2026
Excellent
Mar 21, 2026
I love everything about Renown. I especially love Dr Thyssen. I have been going to her for about 7 years and I have complete confidence in her abilities and trust every decision she makes about my treatments and medications. I rate her 10+ !
Mar 20, 2026
Dr Thyssen is always caring, considerate, an extremely knowledgeable and always is very thorough.
I have referred my friends to her because of her bedside manner.
Mar 20, 2026
I love Dr. Thyssen. She is the best doctor I have ever had.
Mar 18, 2026
Excellent
Mar 13, 2026
fantastic, professional, caring and very helpful staff
Mar 13, 2026
Dr Thyssen is the best doctor I have ever had as a primary physician. I’m lucky to be her patient
Mar 12, 2026
I feel that Dr. Thyssen is avery caring person and treats me with respect and dignity. She has a great personality and has a contagiious smile. I am very greatful that she is my doctor.
Mar 12, 2026
I really like Dr. Thyssen. She understands my situation and what I need. She doesn't rush my appointment, she listens and interacts with my issues. She's a keeper ?
Mar 12, 2026
All us good ?
Mar 11, 2026
love my doctor
Mar 11, 2026
Very friendly and professional.
Mar 9, 2026
The whole staff and Katherine Thyssen are so professional. I have complete confidence in receiving the best diagnosis and treatment possible from them. I just, I'm so grateful to have them. Thank you. Bye-bye.
Mar 8, 2026
It is very pleasant to go to the doctor and have her explain everything about your health and to give you options if needed.
Mar 7, 2026
We are so thankful to have Dr. Thyssen as our primary doctor!
Mar 6, 2026
I love Dr Thyssen. She is always so thorough answering my questions. I feel she really cares about her patients.
Mar 6, 2026
Makes one feel listened to!! Thank you❤️??
Mar 5, 2026
Renown has a wonderful Primary Care Doctor (10/10) in Dr. Thyssen.
Mar 5, 2026
Aside from the meeting that everyone was in, which ran a little late, my appt. was excellent.
Mar 2, 2026
Doctor Thyssen is always very detailed and helpful.
Mar 1, 2026
exCELLANT
Feb 28, 2026
I love everything about this clinic. The staff is great. The facility is spacious so I can avoid contact with people who may be ill. Having lab services is very convenient.
Feb 27, 2026
Love my doctor, Dr Thyssen!
Feb 23, 2026
None better
Feb 23, 2026
Very pleased with the Carrie I received both by my doctor and by the physical therapist.
Feb 22, 2026
Great doctor!
Feb 22, 2026
Dr. Thyssen is the best primary care doctor. She always takes time to listen to me and always has solutions to my needs. I loved the medical student who was with her on my last visit. I'm sorry I don't remember her name.
Feb 20, 2026
Dr. Thyssen is a wonderful physician & Renown is lucky to have her. They need 100 more like her!
Feb 19, 2026
As always, Dr. Thyssen and the staff were kind, helpful, and ensured I got the treatment I needed.
Feb 17, 2026
Everything went perfectly.
Feb 13, 2026
Dr. Thyssen is the best Doctor in Nevada!!! She listens carefully and cares deeply for her patients. She is a brilliant Doctor, especially with us old folks ( her specialty) I feel so fortunate that she is my Physician!
Feb 13, 2026
Dr Thyssen is the best!
Feb 13, 2026
Dr Thyssen is the best!
Feb 13, 2026
Dr Thyssen is the bomb!
Feb 13, 2026
I am very happy with Dr Thyssen.
Feb 13, 2026
Dr Thyssen is very knowledgeable and spends the time to go over any issues and especially the labs and what they mean. So happy to have her in my Renown family.
Feb 12, 2026
I never feel rushed. Dr. Thyssen is very thorough.
Feb 9, 2026
I have been very grateful for the kindness and care and attention that I receive from the doctor and everyone at this facility.
Feb 7, 2026
Very good!
Feb 7, 2026
Dr. Thyssen is one of the best physicians I've ever had. She is thorough and attentive.
Feb 7, 2026
My doctor is very kind and helpful. It is always good to talk with her about my health issues.
Feb 7, 2026
Dr Thyssen always listens, knows your history, medications and interactions extremely supportive and helpful
Feb 6, 2026
I trust my doctor and appreciate the clinic staff
Feb 6, 2026
Dr Thyssen is very intelligent and through. She listens and explains, easy to talk to. Jason at front desk is a very helpful front check in person. Very friendly, professional and helpful. Wonderful team players
Feb 5, 2026
Dr. Thyssen is wonderful. She really seems to care.
Feb 5, 2026
Dr Thyssen is always up-to-date on my medical conditions. She usually offers choices, if appropriate, and discusses alternatives with me. She listens to my concerns and complaints with understanding.