Dr. Michael A Missler, DO
Cardiology
10 Hospital Drive, Suite 100
Saint Peters, MO 63376 Directions
4.9 out of 5
221 verified ratings
221 Ratings, 75 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.
Oct 15, 2025
Was there anything that you feel was outstanding?
Dr. Missler
Oct 15, 2025
Was there anything that you feel was outstanding?
This was my 2nd visit with Dr Missler and I was just as impressed and satisfied as with my first visit. He listens to my concerns and lets me get involved with my treatment concerning prescribed medications. I’ve never seemed rushed and always have a pleasant conversation with him. He has a great way of making you feel comfortable and relaxed even if you’re experiencing the “white coat syndrome”. I would highly recommend Dr Missler to anyone needing a cardiologist or looking to switch as I did.
What could have been done to improve your experience?
Nothing, my visit went great.
Oct 15, 2025
Was there anything that you feel was outstanding?
Na
What could have been done to improve your experience?
Nothing
Sep 29, 2025
Was there anything that you feel was outstanding?
Dr Messler
What could have been done to improve your experience?
Nothing
Sep 29, 2025
Was there anything that you feel was outstanding?
dr. Millie’s listen and answered all my questions
What could have been done to improve your experience?
Nothing
Sep 26, 2025
Was there anything that you feel was outstanding?
I cannot express enough the friendliness and professionalism from the staff and Dr. Missler. They are helpful, kind, happy and extremely caring from beginning to end. I want them to know how thankful I am and appreciative of their effort!
What could have been done to improve your experience?
Nothing
Sep 25, 2025
Was there anything that you feel was outstanding?
Service
Sep 24, 2025
Was there anything that you feel was outstanding?
I think everyone did a fine job.
What could have been done to improve your experience?
N/A.
Sep 24, 2025
Was there anything that you feel was outstanding?
Dr. Missler and staff are exceptionally caring and professional
Sep 23, 2025
Was there anything that you feel was outstanding?
Everyone was professional and courtesy to the tee.
What could have been done to improve your experience?
I didn’t see anything to be improved.
Sep 19, 2025
Was there anything that you feel was outstanding?
Dr. Missler is always so willing to listen and always explains every thing making sure you understand. He is a very caring doctor. Great Doctor
Sep 19, 2025
Was there anything that you feel was outstanding?
They were all very good and helpful but not more so than any other medical facility I have attended! Good people and nice appointment.
What could have been done to improve your experience?
Nothing
Sep 18, 2025
Was there anything that you feel was outstanding?
All was very good
Sep 18, 2025
Was there anything that you feel was outstanding?
Doctor Missler!
What could have been done to improve your experience?
Nothing
Sep 11, 2025
Was there anything that you feel was outstanding?
As always, I think that Dr. Missler is an extraordinary Cardiologist!
What could have been done to improve your experience?
An excellent visit and no recommendations needed.
Sep 5, 2025
Was there anything that you feel was outstanding?
Dr Missler was excellent.
What could have been done to improve your experience?
Can't think of anything needing improvement.
Sep 4, 2025
Was there anything that you feel was outstanding?
The whole staff was awesome
What could have been done to improve your experience?
I don’t feel any improvements were needed
Aug 29, 2025
Was there anything that you feel was outstanding?
Nurse and Dr. Missler were very personable and professional. I left the office feeling all my concerns had been answered. Very good visit.
What could have been done to improve your experience?
Nothing I can think of. I would/will strongly recommend Dr. Missler and team to my family and friends.
Aug 29, 2025
Was there anything that you feel was outstanding?
You already know this but this Dr hast to one of the best I’ve ever meet in my life time
Aug 26, 2025
Was there anything that you feel was outstanding?
He doesn’t rush you through your appointment. He is my favorite doctor of all the ones I have.
What could have been done to improve your experience?
Nothing
Aug 26, 2025
Was there anything that you feel was outstanding?
Everyone
What could have been done to improve your experience?
Nothing, all was well
Aug 23, 2025
Was there anything that you feel was outstanding?
Dr Missler is very personable, I am lucky to have him as my cardiologist.
Aug 23, 2025
What could have been done to improve your experience?
nothing
Aug 23, 2025
Was there anything that you feel was outstanding?
All of them are wonderful!
What could have been done to improve your experience?
Everyone and everything was done well! Dr.Missler is thorough and a wonderful person! God has put me in kind and good hands! thanks to all of you!
Aug 22, 2025
Was there anything that you feel was outstanding?
Dr Missler was informative and made sure I understood his concerns and instructions. I highly recommend him to friends and family
What could have been done to improve your experience?
Nothing
Aug 22, 2025
Was there anything that you feel was outstanding?
Not really
What could have been done to improve your experience?
Nothing
Aug 14, 2025
Was there anything that you feel was outstanding?
Though nothing was "extraordinary" everyone was professional, helpful, friendly and kind.
What could have been done to improve your experience?
I was very pleased with this visit. Nothing needed improving.
Aug 1, 2025
Was there anything that you feel was outstanding?
Everyone was polite, courtesy and very informative. Wonderful and very pleasant staff.
What could have been done to improve your experience?
Just done change ANYTHING!!!!
Aug 1, 2025
Was there anything that you feel was outstanding?
All good
What could have been done to improve your experience?
Nothing
Jul 23, 2025
Was there anything that you feel was outstanding?
Dr. Missler was very courteous, thourgh and professional. Took time to explain everything and answered all questions.
Jul 21, 2025
Was there anything that you feel was outstanding?
Dr Missler and his staff are always professional and kind!
Jul 17, 2025
Was there anything that you feel was outstanding?
Everyone was very friendly & personable
What could have been done to improve your experience?
Nothing
Jul 16, 2025
Was there anything that you feel was outstanding?
Dr. Missler clearly explained his answers to my questions and I never felt rushed!
What could have been done to improve your experience?
I was very happy with my visit! Thank you!
Jul 11, 2025
Was there anything that you feel was outstanding?
All of them were Hreat!!
What could have been done to improve your experience?
Nothing
Jul 10, 2025
Was there anything that you feel was outstanding?
I always get great service, from the staff up to Dr. Missler. I wish all my doctors were like Dr. Missler. He always makes me feel I can manage my condition, and that he's there to help me do that. It really feels great that I have his support and encouragement. He never scolds or criticizes, but instead encourages and informs me about any questions I have.
What could have been done to improve your experience?
Nothing.
Jul 3, 2025
Was there anything that you feel was outstanding?
Dr. Missler
Jul 2, 2025
Was there anything that you feel was outstanding?
I have been seeing Dr. Misler for several years and I personally wouldn’t want to have any other cardiologist tend to my medical needs.
What could have been done to improve your experience?
I don’t know if anything that I would change!
Jul 1, 2025
Was there anything that you feel was outstanding?
Dr Missler gave me all the time that was needed and answered all the questions.
What could have been done to improve your experience?
Nothing
Jul 1, 2025
Was there anything that you feel was outstanding?
Doctor listened and worked with me
Jun 24, 2025
Was there anything that you feel was outstanding?
This was my first appointment with Dr Missler, it was a yearly exam. I was very impressed, he spent a great deal of time listening to my concerns about changing my meds. I never felt rushed, he discussed suggestions for changing my meds which was my main concern. I have follow up visits to make sure all is going as planned with my med changes. I would and will highly recommend Dr Missler to anyone looking for or looking to change cardiologist as I did.
What could have been done to improve your experience?
Nothing, it was a great visit and very refreshing to have a doctor who listens to your concerns.
Jun 18, 2025
Was there anything that you feel was outstanding?
His knowledge of various studies and trends
What could have been done to improve your experience?
Nothing comes to mind.
Jun 17, 2025
Was there anything that you feel was outstanding?
Dr. Missler is just simply an amazing Dr.
Jun 10, 2025
Was there anything that you feel was outstanding?
Dr. Missler is wonderful!! So genuine and personal. Really takes his time making sure your questions have been answered. Would HIGHLY recommend this Dr.
What could have been done to improve your experience?
Nothing
May 31, 2025
Was there anything that you feel was outstanding?
Dr. Missner was very kind and explained answers to my questions.
May 30, 2025
Was there anything that you feel was outstanding?
Dr. Missler is the best physician I’ve been to. Very thorough and listens to you. Allowing you to be part of your treatment.
May 29, 2025
Was there anything that you feel was outstanding?
Dr. Missler is a great physician and I'm very blessed to have him as my doctor. He is very helpful and knowledgeable.
May 27, 2025
Was there anything that you feel was outstanding?
Dr. Missler is always exceptional! Knowledgeable, professional, friendly and caring
Apr 30, 2025
Was there anything that you feel was outstanding?
Excellent care
Apr 29, 2025
Was there anything that you feel was outstanding?
The Doctor and his staff were excellent
Apr 22, 2025
Was there anything that you feel was outstanding?
Good heart doctor