Martin Zenni, M.D.
Cardiology, Interventional Cardiologist
UF Health Cardiovascular Center – Jacksonville
655 West 8th Street, 5th Floor
Jacksonville, FL 32209 Directions
4.9 out of 5
287 verified ratings
287 Ratings, 76 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.
AI Overview
Dr. Zenni is repeatedly described as compassionate, highly knowledgeable, and exceptionally thorough. Patients praise his listening skills, clear explanations, and willingness to include patients in care decisions; several comments credit him with life‑saving care or greatly improved health. Office staff are noted as friendly. Commonly mentioned topics include cardiology care, diagnostic review (e.g., heart cath/video), and long‑term management and prevention guidance. Overall sentiment is strongly positive with frequent gratitude and confident trust in his recommendations.
Generated from the text of patient reviews
This AI summary is automatically generated from published patient reviews. It highlights common themes from the reviews, but as with all AI-generated content, there may be errors. Please exercise caution and refer to the original reviews for full context.
Aug 28, 2026
Thank you for your attention to detail and genuine concern for my mom's health and wellbeing. I truly appreciate you and your team!
Aug 27, 2026
He is fantastic
Aug 14, 2026
Dr. Zenni is the reason I go to St Marys Cardiology Office. He has a reputation as a brilliant surgeon. He was very thorough and detailed with me. Gave me excellent advice. I feel confident having Dr Zenni as my heart Doctor.
Aug 14, 2026
I really liked Dr Zenni I just wasn’t prepared for all the questions but was happy he asked
Aug 14, 2026
Was a good experience
Aug 13, 2026
Long time patient
Aug 13, 2026
I feel we have a patient, doctor relationship built over years of care.
Aug 7, 2026
He is excellent
Aug 6, 2026
Dr Zenni has been my cardiologist for 29yrs, there is no other cardiologist I trust more than Dr Zenni. There are other cardiologist closer than Dr Zenni but I am not as comfortable with them, I feel safer with my heart in Dr Zenni's care.
Aug 4, 2026
Dr Zenni has a calm, engaging manner. He’s a very good listener and communicates well.
Jul 31, 2026
Trustworthy
Jul 30, 2026
Very good job making me understand
Jul 30, 2026
Trusted provider
Jul 30, 2026
I have been seeing him for years and I trust my life with him
Jul 16, 2026
I was with Dr [last name] with Baptist Cardiology for over 15 years, but he retired so the staff assigned me to other cardiologists that I didn't care for. So researched and found Dr Zenni. If you haven't read his Google reviews, you should because they are stellar and far superior to any other cardiologist in the NE FL area.
Jul 2, 2026
Dr. Zenni is the best cardiologist I've ever seen. He monitored my mitral valve prolapse for 20 years, and when it came time for surgery last year, he cared deeply about me and helped me at every step of the way.
Jun 26, 2026
Compassionate and Listens
Jun 26, 2026
DR Zenni is a great doctor who cares about the health of all patients he will let you know what you can do to improve your health so you can live a long quality life God bless him.
Jun 25, 2026
felt confident
Jun 25, 2026
I've been with him for 4 years now. He is always excellent and professional, straight to the point, but with a ln outstanding professional kindness. I trusted him 100% when he was working on my heart in April.
Jun 17, 2026
Only once in my life if 78 years have I experienced a doctor as competent and considerate of my medical needs as Dr Zenni. Rarely has a physician inspired such confidence!
Jun 11, 2026
Dr. Zenni is caring, thorough, and highly knowledgeable. He genuinely cares about his patients and encourages healthy habits while providing excellent medical care. I highly recommend him.”
Jun 8, 2026
very detailed explanations and very professional.. Takes time to make sure you understand everything he tells you.
Jun 8, 2026
He answered all of my questions and explained the diagnoses that I did not understand.
Jun 5, 2026
He probably saved my life 8 years ago.
Jun 5, 2026
Very positive experience
Jun 4, 2026
Technical, progressive, & seeks patient improvement.
May 29, 2026
Besides being an excellent doctor, Dr Zenni is very thorough in his examinations and his record keeping. Dr Zenni asks a multitude of questions, and documents all of the questions and answers given in his report. Dr Zenni is also an excellent listener.
May 28, 2026
Already made a recommendation
May 28, 2026
Dr Zenni was very thorough and compassionate
May 28, 2026
Professional, knowledgeable and courteous. Takes the time to explain everything to make you comfortable.
May 15, 2026
Easy to understand and cares for his patients!
May 14, 2026
Dr Zenni is a very nice guy and excellent and Knowledgeable Cardiologist Dr. ! He listens to you very well and takes his time with answering any concerns with your health that you may have and takes notes about everything! I highly recommend him to all!!
May 7, 2026
Really like my cardiologist, and everyone in the office staff are very friendly
Apr 23, 2026
Great appt with Dr. Zenni
Apr 21, 2026
Dr. Zenni took the time to both listen and explain the services provided greatly exceeding my expectations.
Apr 9, 2026
Confident in Office and Doctor
Mar 13, 2026
Dr Zenni is great. I feel I can ask him anything and he will give me an explanation I can understand. He asks questions my other doctors only skim over. I feel like he truly cares about his patients.
Mar 12, 2026
I was very pleased with my experience T UF Health
Mar 5, 2026
Best location with great doctors
Feb 26, 2026
Found Dr Zenni to be bright, technical, & busy. I'm technical but he is medical technical. Very willing to explain on any questions. Provided options & included me on treatment decisions.
Feb 13, 2026
Dr. Zenni is the best cartiologist that I have ever seen. He is concerned, and explains all test results in a layman's understanding.
Feb 12, 2026
Dr. Zenni is the best.
Dec 29, 2025
Outstanding in all respects
Dec 20, 2025
I appreciate the knowledge Dr. Zenni has on heart health.
Nov 15, 2025
Excellent doctor. Very thorough, explains issues so I understood, listened to my concerns.
Nov 9, 2025
Dr Zenni is the best cardiologist Dr and that I highly recommend to all!!
Nov 1, 2025
I couldn't think of any other cardiologist I would want to evaluate me.
Oct 29, 2025
My experiences with my care providers was Very Good. Thank you.
Oct 6, 2025
Dr. Zenni was great, as usual. I much prefer to see him than any of the PA/NP on staff. He never rushes through anything.