Dr. Katherine Ann Thyssen, DO
Internal Medicine
10085 Double R Blvd, Suite 220
Reno, NV 89521 Directions
4.9 out of 5
2,368 verified ratings
2,368 Ratings, 1,226 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.
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.
Jul 3, 2026
I trust dr Thyssen. She is the best.
Jul 2, 2026
This was my first appt at this provider and I loved it. Dr. Thyssen is a great Dr and very knowledgeable and the appt was more than I hoped for. I would definitely recommend.
Jul 1, 2026
Dr. Thyssen was very helpful in discussing my problem. She listened and made appropriate suggestions.
Jul 1, 2026
GREAT
Jun 30, 2026
Doctor Thyssen is a wonderful doctor…very easy to talk with…I highly recommend her.
Jun 30, 2026
Dr thyssen is one of the best Dr's i have been to. Please don't ever lose her
Jun 29, 2026
That clinic is always great
Jun 26, 2026
Keep up the good work. Renown is amazing!!
Jun 22, 2026
dR. tHYSSEN'S TEAM IS THE BEST!
Jun 21, 2026
I felt comfortable discussing even the most personal issues.
Jun 18, 2026
Always have a good experience with this PCP and this facility is always helpful and staff is friendly. Facility is always neat and tidy
Jun 17, 2026
Dr thyssen a kind and care and knowledgeable Dr!
Jun 16, 2026
Dr Thyssen sets the standard in health care. She is friendly, professional and highly knowledgeable. She takes the time to listen and understand. She responds with in-depth explanations that are understandable. Dr Thyssen is the best.
Jun 16, 2026
I thoroughly enjoyed the care that I receive from Dr. Thyssen. She listens very carefully to issues recommends possible changes in drugs if, if necessary. I would thoroughly recommend her to anyone.
Jun 14, 2026
Dr. Thyssen. Is fabulous and listens to me. She explains things well too.
Jun 12, 2026
Dr Thyssen is wonderful She goes over every lab result, every possible diagnosis .she explains the test ordered. Always a smile.
Jun 12, 2026
I always get the best of care. Dr Thyssen is amazing, caring, great listener and very professional. She is well educated and really knows her Medical training. I’ve been seeing her for over 5 yrs now and have always been treated with the best care. Always answers all my questions and gives me good advice. Her staff is excellent also. I highly recommend them as they are well trained in their profession.
Jun 12, 2026
Great facility , everyone very helpful and professional.
Jun 12, 2026
Dr Katherine Thyssen is the best doctor I have ever had.
Jun 11, 2026
Good experience.
Jun 7, 2026
I’m very happy to be a patient at the Del Monte Center. The office is clean, comfortable, and the staff has always been courteous and professional. The longer appointment times are especially helpful as I’ve never felt rushed and have had time to discuss any issues fully with the medical staff. Dr. Thyssen is the gold standard in health care in my opinion, as she is professional, thorough, extremely knowledgeable, takes the time to listen, and is a genuine, caring person. My wife and I both feel lucky to be under her care.
Jun 5, 2026
I love this clinic. Dr. Thyssen is amazing. I don't know how she can pack all that knowledge into her brain. The waiting area is so attractive and spacious. I feel safe there. If someone is ill, I can stay away. I like the lab experience. Easy and efficient.
Jun 5, 2026
Excellent service. So so happy to have Dr Thyssen as a doctor. Thank you
Jun 5, 2026
Dr. Thyssen is exactly what a primary care physician should be: compassionate, analytical, and highly collaborative. She never rushes through appointments, takes the time to look at the complete picture, and explains things in a clear, practical way. She respects her patients' insights and works with you to build a safe, sustainable protocol for your wellness. Thanks to her steady support and clean bills of health, I feel in complete command of my physical well-being. She is an absolute asset to the medical community here."
Jun 4, 2026
I love Dr. Thyssen. Very nice.
I told her . . Don't ever drop me for any reason.
?
Jun 4, 2026
Renown's Geriatric Center at 740 Del Monte is an amazing facility that provides top notch staff and doctors. In addition, the waiting area is like walking into a 4 Star Hotel. I love it!
Jun 3, 2026
Dr Thyssen is my best Dr ever
I would recommend her to anyone. Thank you Dr Thyssen
Jun 3, 2026
Dr. Thyssen is outstanding!!
May 29, 2026
always top notch!
May 29, 2026
Dr Thyssen and her staff are wonderful. She is an excellent doctor and has helped me through so many issues. Her assistant Marie is so helpful and such a great assistant
May 24, 2026
Dr. Thyssen is a great asset to Senior Care Plus and I hope she is my Dr. Forevermore.
May 23, 2026
I give Dr. Thyssen and her staff my absolute highest recommendation. Every aspect of my experience exceeded expectations. From the moment I walked in, the staff was exceptionally professional, efficient, welcoming, and attentive. The office runs with the level of organization and care you would expect from a truly top-tier medical practice.
Dr. Thyssen is outstanding in every sense of the word. She is highly knowledgeable, compassionate, patient, thorough, and genuinely committed to providing the best possible care to her patients. She took the time to listen carefully, answer questions completely, and made me feel respected, comfortable, and confident in the care I received.
It is very rare to encounter a physician and staff who demonstrate this level of excellence, professionalism, and genuine concern for patients. I left deeply impressed and extremely grateful for the outstanding care and experience provided by everyone in the office. I would enthusiastically and confidently recommend Dr. Thyssen and her staff to anyone seeking exceptional medical care.
May 21, 2026
It would be helpful for Patients if the receptionists could actually see if someone is in line. Between the wall and huge screens a patient can wait several minutes before being noticed.
May 21, 2026
Has good model for service. Friend whom I talked into switching to this clinic commented, “who knew that one 30 minute appointment is much better than two 15 minute appointments?”
May 18, 2026
The staff on this service was excellent. I would.
May 18, 2026
Dr King was very thorough
May 17, 2026
Best doctor I've had in long time. I totally trust her. I'm luckly to have her as my primary doctor.
May 16, 2026
Dr. Thyssen is the best! *****
May 15, 2026
very professional, very informed, very caring and considerate physician
May 14, 2026
The receptionist, a young man, was professTonal, proficient and personable. The medical assistant did a thorough job. She was professional, proficient and personable. Dr. Trujillo-king was also professional, proficient, knowledgeable and personable. Dr. Thyssen is the best! She is so knowledgeable, so personable, so professional and extremely proficient. She certainly knows the medical history. She listens to my concerns with sincere care. She involves me in decision making ensuring that I am well informed. I mash happy to have her as my Primary Care physician.
May 12, 2026
Dr. Thyssen is very up to date on any new medical procedures as well as medications. She is always helpful and suggests ways to get further help or advice. Best doctor ever.
May 11, 2026
Dr. Thyssen always listens to my concerns and
offers helpful suggestions. I feel privileged to have
her as my Doctor.
May 11, 2026
Dr. Thyssen is a wonderful doctor. She has a great team she works with. We're very appreciative of the Senior Care Plus Senior Center that we go to. Thank you very much, Dr. Thyssen.