Dr. Michael Fleissner, MD

Cardiology

6810 State Route 162, Suite 102

Maryville, IL 62062 Directions

6182884076

doctors.bjc.org

4.8 out of 5

420 verified ratings

420 Ratings, 102 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.
Apr 27, 2026
What else would you like to say about your experience?
Was a great visit. Staff was over the top.

Apr 24, 2026
What else would you like to say about your experience?
The doctor was listened to me and asked me questions as well. I like him. He's a people person

Apr 22, 2026
What else would you like to say about your experience?
I felt completely in Great Hands every one treated me with such respect and explained every thing so easy Thank You

Apr 20, 2026
What else would you like to say about your experience?
Very pleasant visit. No waiting time. Good conversation with D.

Apr 17, 2026
What else would you like to say about your experience?
Have been under the care of Dr. Fliessner for the last 3 years and am very satisfied with the service. All of the staff was very nice

Apr 16, 2026
What else would you like to say about your experience?
Dr. Fleissner is an exceptional cardiologist. He's very caring and compassionate about his patients and the staff was very nice as well. Thank you.

Apr 10, 2026
What else would you like to say about your experience?
Everyone very helpful, courteous and professional. Enjoyed the initial contact with DR. Fleissner.

Apr 10, 2026
What else would you like to say about your experience?
The staff was courteous and professional!

Apr 9, 2026
What else would you like to say about your experience?
It was very gratifying to listen to the discussion was taken by the doctor and it was very interesting at his responses and also his assignment of who's responsible to do this. I firmly believe he was very sincere and requested the information I was providing. Thank you.

Apr 8, 2026
What else would you like to say about your experience?
I had a pleasant experience

Apr 6, 2026
What else would you like to say about your experience?
Like Dr. Fleissner very much.

Apr 2, 2026
What else would you like to say about your experience?
They were all very efficient & friendly. Dr fleissner is excellent in listening to the patient showing compassion and appropriate advice. Highly recommend.

Apr 1, 2026
What else would you like to say about your experience?
Dr Michael Fleissner is a very good Dr he always try’s to answer my questions!

Apr 1, 2026
What else would you like to say about your experience?
Everything went well. Only waited just a short time until I was taken to a room, a very, very short wait for the doctor. The doctor came in within minutes. I was quite impressed. I think I have the most confidence in this doctor and I'm very happy with him.

Mar 24, 2026
What else would you like to say about your experience?
This doctor is very good at what he does. I have complete confidence in him and the facility is nice and located well for me.

Mar 20, 2026
What else would you like to say about your experience?
Dr Fleissner put me at ease and clearly explained cardiovascular disease. Staff was very friendly.

Mar 18, 2026
What else would you like to say about your experience?
The staff was very polite and respectful and the doctor was also. It was a great experience and I would recommend family and friends to go there if needed.

Mar 17, 2026
What else would you like to say about your experience?
Dr. Fleisner talked with me and explained things and I was very pleased with him. I would suggest him for any of my friends and this office did a good job.

Mar 13, 2026
What else would you like to say about your experience?
DR. FLEISSNER IS THE BEST DOCTOR I HAVE EVER HAD FOR CARDIOLOGY - HE IS WONDERFUL - I TRIED DIFERENT DOCTORS FOR 2 YEARS WHEN I WAS HAVING TROUBLE, WHEN I SAW DR. FLEISSNER, HE FIGURED IT OUT IN 10 MINUTES - SAVED MY LIFE! I DO NOT LOOK FORWARD TO HIS RETIREMENT!

Mar 12, 2026
What else would you like to say about your experience?
The appointment and talking to the doctor went very well

Mar 12, 2026
What else would you like to say about your experience?
The staff, nurses, and doctor were very professional and very kind.

Mar 12, 2026
What else would you like to say about your experience?
When I was there, everyone was super nice from the girl that checked me in and gave me my next appointment to the nurse for Dr. Fleisner and Dr. Fleisner himself, who is always very, very nice and always tries to have enough time to listen to anything you've got to say and to be very kind and courteous and not rushy. That's about it. Thank you.

Mar 12, 2026
What else would you like to say about your experience?
Dr. Fleissner is a wonderful careful doctor. Explains everthing and takes time with his patient. His staff is also very friendly and caring.

Mar 12, 2026
What else would you like to say about your experience?
I liked the location it is laid out in such a way as easy access.

Dec 17, 2025
Was there anything that you feel was outstanding?
All went well

Dec 15, 2025
Was there anything that you feel was outstanding?
Dr. Fleisner always goes above and beyond the call of duty. I'm thankful to him for my cardiologist. The staff is always kind and helpful.
What could have been done to improve your experience?
Don't change anything it's great just the way it is.

Dec 9, 2025
Was there anything that you feel was outstanding?
The staff were so nice and friendly. Dr. Fleissner explains everything clearly and he is very friendly. I have a clear understanding after my visits and Doc is actually concerned about my health and well-being
What could have been done to improve your experience?
Nothing! Everything was perfect for me.

Dec 8, 2025
Was there anything that you feel was outstanding?
No

Dec 8, 2025
What could have been done to improve your experience?
Nothing

Dec 6, 2025
Was there anything that you feel was outstanding?
No
What could have been done to improve your experience?
Nothing

Dec 3, 2025
Was there anything that you feel was outstanding?
DR Fleisner was.
What could have been done to improve your experience?
Nothing. All was was perfect,

Dec 3, 2025
Was there anything that you feel was outstanding?
Dr. Fleissner is very personable. He listens and shows interest in what you have to say.
What could have been done to improve your experience?
Nothing

Nov 30, 2025
Was there anything that you feel was outstanding?
I wish all doctors took the time to get to know their patients and to explain things to them like Dr Fleissner. He is a great example of how all doctors should interact with their patients.
What could have been done to improve your experience?
Nothing - everyone in this office did a wonderful job during my visit.

Nov 26, 2025
Was there anything that you feel was outstanding?
All
What could have been done to improve your experience?
Nothing

Nov 26, 2025
Was there anything that you feel was outstanding?
Dr. Fleissner and his staff were extremely wonderful.

Nov 25, 2025
Was there anything that you feel was outstanding?
The doctor and the staff are wonderful! I’m normally rather apprehensive about going to a doctors office but I am very comfortable about going to this doctor and the staff are very friendly.
What could have been done to improve your experience?
Nothing, it is always nice going to that office!

Nov 25, 2025
What could have been done to improve your experience?
Less waiting time

Nov 25, 2025
Was there anything that you feel was outstanding?
Just that the doctor was so nice. And spent plenty of time with me, which I appreciated.
What could have been done to improve your experience?
Nothing.

Nov 21, 2025
Was there anything that you feel was outstanding?
Doctor Fleissner
What could have been done to improve your experience?
Great visit like the way doctor talked & listened. Thank for the great care

Nov 5, 2025
Was there anything that you feel was outstanding?
All good
What could have been done to improve your experience?
?

Nov 4, 2025
Was there anything that you feel was outstanding?
no
What could have been done to improve your experience?
n/a

Nov 4, 2025
Was there anything that you feel was outstanding?
Dr. Fleissner is a great Doctor. Listener,

Nov 1, 2025
What could have been done to improve your experience?
The visit was fine. No improvements necessary.

Oct 25, 2025
Was there anything that you feel was outstanding?
Dr. Fleissner was excellent! He took his time in explaining the results of the and why decisions were made. He was personable and answered all my questions. .
What could have been done to improve your experience?
Nothing.

Oct 21, 2025
Was there anything that you feel was outstanding?
First time at this facility. Very nice. Have been seeing Dr Fleisner for 5 years. He is an excellent Dr all around.

Oct 19, 2025
Was there anything that you feel was outstanding?
I really like this doctor and his staff.
What could have been done to improve your experience?
Nothing

Oct 17, 2025
Was there anything that you feel was outstanding?
Very professional

Oct 17, 2025
Was there anything that you feel was outstanding?
No. Everyone provided excellent care with professionalism and courtesy. Dr. Fleissner is very personable as well.
What could have been done to improve your experience?
Nothing

Oct 15, 2025
Was there anything that you feel was outstanding?
Love the down to earth conversations with thr doctor and all staff members.
What could have been done to improve your experience?
Nothing

Oct 15, 2025
Was there anything that you feel was outstanding?
The whole staff is always helpful and friendly. Dr Fleisner explains things really well and is great.
What could have been done to improve your experience?
Nothing