Dr. Michael Fleissner, MD

Cardiology

6810 State Route 162, Suite 102

Maryville, IL 62062 Directions

6182884076

doctors.bjc.org

4.8 out of 5

560 verified ratings

560 Ratings, 97 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.
Sep 23, 2026
What else would you like to say about your experience?
I have been a patient since 2001 and have been treated with the best doctor’s and nurses and aides you could possibly ask for! Your doctor’s have saved my life twice, what else can be said!!!???!

Sep 14, 2026
What else would you like to say about your experience?
Dr Fleissner and his staff are wonderful.

Sep 14, 2026
What else would you like to say about your experience?
All went well. It was really good to see Dr Fleissner again.

Sep 14, 2026
What else would you like to say about your experience?
Staff is excellent and Dr. Fleissner is GOLDEN!! Would want to tell everyone what a great office this is and the wonderful care I received. Thank You.

Sep 13, 2026
What else would you like to say about your experience?
It was easy to find and all were kind.

Sep 9, 2026
What else would you like to say about your experience?
All was good

Sep 4, 2026
What else would you like to say about your experience?
Dr. Fleissner was very patient and took his time to explain everything to me.

Sep 2, 2026
What else would you like to say about your experience?
Dr. Flleissner is the best!

Sep 1, 2026
What else would you like to say about your experience?
Dr. Fleisner took a lot of time, didn't hurry, and explained a lot of things. He's been my cardiologist for quite a few years, so I do trust him.

Aug 24, 2026
What else would you like to say about your experience?
Dr Fleissner, is very knowledgeable and caring. Looking forward to his continued care.

Aug 22, 2026
What else would you like to say about your experience?
They are always courteous and friendly

Aug 12, 2026
What else would you like to say about your experience?
Very satisfied

Aug 8, 2026
What else would you like to say about your experience?
Dr. Michael Fleisssner was very professional and compassionate. He spent time explaining a course of action for treating my cardio issues to me and my wife.

Aug 7, 2026
What else would you like to say about your experience?
Everyone was super nice and accommodating. The doctor was very professional, examined me carefully and thoroughly explained what was going on. It was my first visit with Dr. Fl and I felt that I could trust him immediately.

Aug 3, 2026
What else would you like to say about your experience?
Awful. Not coming back.

Jul 29, 2026
What else would you like to say about your experience?
The cardiologist I saw could do a little less talking and a lot more listening.

Jul 29, 2026
What else would you like to say about your experience?
felt like i was a bother to the office for even being there and not seen as a patient with a problem looking for help

Jul 26, 2026
What else would you like to say about your experience?
Everything went smoothly. Dr. Fleissner always listens and explains everything well.

Jul 25, 2026
What else would you like to say about your experience?
Everything went fine

Jul 23, 2026
What else would you like to say about your experience?
Like the previous times before the staff all was top notch .

Jul 20, 2026
What else would you like to say about your experience?
The Doc did great, explained a bunch of stuff and the staff was very helpful and friendly and professional! Thanks :)

Jul 19, 2026
What else would you like to say about your experience?
Dr Fleissner always kind and professional

Jul 18, 2026
What else would you like to say about your experience?
It went well. Like it usually does.

Jul 16, 2026
What else would you like to say about your experience?
I was very pleased.

Jul 14, 2026
What else would you like to say about your experience?
I was treated with respect and my c/o CP Relieved by NTG two days ago was taken seriously .

Jul 14, 2026
What else would you like to say about your experience?
Dr Fleissner is great.

Jul 14, 2026
What else would you like to say about your experience?
Doctor was very professional and through explaining condition / treatment options.

Jun 30, 2026
What else would you like to say about your experience?
Very pleasant experience (for a doctor's visit)

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