Dr. Michael A Missler, DO
Cardiology
10 Hospital Drive, Suite 100
Saint Peters, MO 63376 Directions
4.9 out of 5
230 verified ratings
230 Ratings, 93 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.
Dec 20, 2025
What could have been done to improve your experience?
Waited times could improve
Dec 20, 2025
What could have been done to improve your experience?
Excellent. No improvement needed
Dec 19, 2025
Was there anything that you feel was outstanding?
They are all extrodinary
What could have been done to improve your experience?
Norhing
Dec 13, 2025
What could have been done to improve your experience?
The doctor did not explain test results. The doctor did not take my symptoms seriously and seemed to make his mind up without listening to my concerns. No arrangements were made for timely follow up. I left feeling misunderstood and with no treatment to alleviate my concerns. The doctor was polite and friendly but not helpful.
Dec 10, 2025
Was there anything that you feel was outstanding?
The whole office was very polite and helpful
What could have been done to improve your experience?
Not a thing all was great
Dec 8, 2025
Was there anything that you feel was outstanding?
The Doctor himself
What could have been done to improve your experience?
Nothing
Dec 4, 2025
Was there anything that you feel was outstanding?
Everyone
What could have been done to improve your experience?
Nothing
Dec 3, 2025
Was there anything that you feel was outstanding?
Dr. Missouri is amazinh!! He is king. Humorous.. very knowledgeable. Listens to patient..tales his time.. one of the best doctors Ever had!!!!!
Nov 26, 2025
Was there anything that you feel was outstanding?
Dr Missler listened to me and explained everything I was concerned about. He made me feel very comfortable and cared for.
What could have been done to improve your experience?
Nothing
Nov 20, 2025
Was there anything that you feel was outstanding?
The whole staff was great..
What could have been done to improve your experience?
Nothing
Nov 17, 2025
Was there anything that you feel was outstanding?
DR. MICHEAL A .MISSLER IS A VERY GOOD DR. I WOULD RECOMMEND HIM TO ANYONE THAT NEED’S A DR. LIKE HIM., HE ALSO TREATED MY DAD AS WELL UNTIL HE PASSED AWAY, DR. MICHEAL A. MISSLER IS SOMEONE VERY NICE,HE WILL TELL YA UPFRONT WHAT YA HAVE TO DO,& ETC. ,& HE IS A HONEST MAN , HE’S GOOD LISTENER ,& HE WILL BE THERE FOR YA IF YA NEED HIM. DR. MICHAEL A. MISSLER HAS BEEN MY DAD , & MY DR. FOR MANY YEARS,& STILL MY DR. TO THIS DAY. DR. MICHAEL A. MISSLER IS ONE OF A VERY FEW DR. THAT IS OUT IN THIS WHOLE WORLD THAT I WOULD RECOMMEND.
What could have been done to improve your experience?
NOTHING TO IMPROVE
Nov 16, 2025
Was there anything that you feel was outstanding?
The doctor was very personable and knowledgeable, and I felt very comfortable at the visit
Nov 13, 2025
Was there anything that you feel was outstanding?
Everyone that I encountered was very Friendly, professional, and knowledgeable.
What could have been done to improve your experience?
Nothing
Nov 4, 2025
Was there anything that you feel was outstanding?
Dr. Missler is the very best. He listens carefully and he explains very well. He is a great Doctor
Nov 3, 2025
Was there anything that you feel was outstanding?
Everyone was great
What could have been done to improve your experience?
Nothing
Oct 31, 2025
Was there anything that you feel was outstanding?
Entire staff was excellent!
What could have been done to improve your experience?
Nothing
Oct 28, 2025
Was there anything that you feel was outstanding?
The group as a whole are incredible to work with.
What could have been done to improve your experience?
Can't think of anything.
Oct 27, 2025
Was there anything that you feel was outstanding?
Doctor and staff are friendly and caring.
Oct 25, 2025
Was there anything that you feel was outstanding?
Dr. Misslet & his MA
Oct 25, 2025
Was there anything that you feel was outstanding?
Yes! Dr. Missler himself-VERY laidback and not in a hurry-he seemed sincerely interested in my health and well being. What an absolutely wonderful medical visit-so glad I have Dr. Missler as my cardiologist!
What could have been done to improve your experience?
Absolutely nothing!
Oct 21, 2025
Was there anything that you feel was outstanding?
The staff was very courteous. The entire staff was great. The appointment with Dr. Missler was one of being well informed and feeling like I received the best of care.
Oct 20, 2025
Was there anything that you feel was outstanding?
Everyone was very friendly and helpful!
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!!!!