Dr. Michael Fleissner, MD

Cardiology

6810 State Route 162, Suite 102

Maryville, IL 62062 Directions

6182884076

doctors.bjc.org

4.8 out of 5

458 verified ratings

458 Ratings, 114 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.
Jun 26, 2026
What else would you like to say about your experience?
He was very calm and kind! For some reason he struck me as a very intelligent doctor! Down to earth

Jun 22, 2026
What else would you like to say about your experience?
Excellent

Jun 22, 2026
What else would you like to say about your experience?
I definitely had a very good service while I was there at the doctor's office. Everyone was very kind and very nice and always willing to help and they were all had a smile on their face and I appreciate all that very much and I would definitely recommend anyone to go. It all worked out really nice and Dr. Fleischner is very, very nice.

Jun 18, 2026
What else would you like to say about your experience?
Dr. was very Kind and took time to discuss my condition.

Jun 17, 2026
What else would you like to say about your experience?
I had an excellent visit with my doctor and the people that works there, they were great. I live way out in Livingston, Illinois, and I don't mind driving to get my doctor's appointment.

Jun 17, 2026
What else would you like to say about your experience?
The doctor explained things in plain language and very clearly. I had no difficulty understanding what he was informing me of. I was very pleased with the entire experience with the doctor and the staff.

Jun 14, 2026
What else would you like to say about your experience?
First time visit. Dr Fleissner and Nurse were professional and very helpful.

Jun 4, 2026
What else would you like to say about your experience?
It was a good medical experience and I left confident I was listened to by the doctor and he understood my concerns. He presented his thoughts on the symptoms I was experiencing and after reviewing the test results presented his recommendations, which made me satisfied with the interview. No further tests were considered necessary and I agreed with his assessment. Thank you to all in the office.

Jun 2, 2026
What else would you like to say about your experience?
Awesome as always

May 31, 2026
What else would you like to say about your experience?
Everyone was so polite and professional. Didn’t have to wait very long to be called back. Dr Fleissner is the best.

May 24, 2026
What else would you like to say about your experience?
I really like my doctor. The nurse was very nice.

May 23, 2026
What else would you like to say about your experience?
I like talking to the doctor. He explained everything to me very well. And so I asked him, could he be my heart doctor?

May 23, 2026
What else would you like to say about your experience?
Dr. Fleissner and Staff were great.

May 22, 2026
What else would you like to say about your experience?
Very thorough - I felt like the dr really helped me with all my questions!

May 22, 2026
What else would you like to say about your experience?
Fleissner was not impressive, he was uninterested.

May 22, 2026
What else would you like to say about your experience?
The staff was very nice and Dr. Fleisner was very professional and very friendly. I enjoyed my visit. Thank you.

May 20, 2026
What else would you like to say about your experience?
Very good experience.

May 20, 2026
What else would you like to say about your experience?
I'm Happy

May 11, 2026
What else would you like to say about your experience?
I was treated very well. Thank you.

May 9, 2026
What else would you like to say about your experience?
I just want to say everyone was wonderful, very kind, very patient, very informed, and I just loved the doctor. I thought he was just great and I just thought the whole experience was very good. That's all.

Apr 30, 2026
What else would you like to say about your experience?
Dr. Michael Fleissner is awesome! BJC has a winner.

Apr 30, 2026
What else would you like to say about your experience?
Exceptional facility

Apr 29, 2026
What else would you like to say about your experience?
All the staff was very friendly and very helpful and taking time. And Dr. Fleischner is amazing and took a lot of time and explained everything and anything that I had questions for or anything that he had to say was very helpful. He's a great doctor.

Apr 29, 2026
What else would you like to say about your experience?
Everything was very pleasant, very pleasant. Thank you.

Apr 29, 2026
What else would you like to say about your experience?
They were very helpful

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