John P McKenzie III, M. D

After suffering from a cardiac arrest while playing soccer, I was assigned to Dr. Mckenzie at Glendale Adventist. It was then that he implanted my ICD and misdiagnosed me with long qt syndrome, and said to get back on the soccer field and go back to my normal life. I saw him for check ups for over a year and a half and during these checkups he never even took my blood pressure or weight. I, being naïve and optimistic, thought everything must be fine.
Well it wasn’t. A year and a half later I had a couple of dizzy spells and decided to take myself back to Glendale Adventist… something was wrong. At the hospital, Dr. Mckenzie ordered an echo cardiogram. Thank God the technician who administered it, told me what was going on. She said I had a dilated cardiomyopathy, an enlarged heart, and an ejection fraction of 30%. As soon as she left the room, I looked up what all that meant online, and it meant that I had HEART FAILURE. Dr. Mckenzie never came back to the hospital room to explain what was going on. Instead, he told me to make an appointment with him in a couple of weeks!
All of this time, Dr. Mckenzie had failed to monitor me properly. He was not giving me the right medication, nor should I ever be playing soccer again. I should have been in cardiac rehab, etc. And not only that, but when I gathered my records from my original hospital visit, he even noted that I had a dilated cardiomyopathy and that I should be monitored after discharge and he never told me! Another strange thing is that when I went to gather my records from Dr. Mckenzie’s office, they said that they don’t have any! They have no records on any of my visits. Sounds illegal right?!
After extensive research to find an amazing doctor, I’ve discovered that Dr. Mckenzie has quite a bad reputation among other doctors in the area. He’s an egomaniac, and just does what he needs to to get by. If you’re a patient of his, which I hope you aren’t because it could be fatal, but if you are, you will notice he’s SO busy… Well it’s a numbers game to him. He has no passion for the job. He’s a slacker… But he’s a great actor… very charismatic.
Advocate for yourself and always ask to see your records. Now, by the time I leave my new doctors office, he has delivered all of my office visit notes via an app. Also, my ejection fraction is now up, I feel much better and my heart is getting stronger. I have an amazing doctor now whose put me on the right track and he genuinely cares about my wellbeing.
Stay away from Dr. Mckenzie.

Dr. McKenzie is a very good doctor. He found out what was wrong with my heart and successfully treated it within a year of the symptoms flaring up. He does a good job of explaining the situations and the solutions. I also like the fact that whoever went with me to my appointments were also allowed to go with me into the waiting rooms. The treatment itself was somewhat painful but that was expected of such a procedure. The only con about having him as my cardiologist is that he is late most of the time to things but makes up for it by being so caring and patient.

Doctor Mckenzie is amazing. He diagnosed and treated my heart problem. He is very busy and you will wait to be seen so be prepared. The wait is worth it when you are being treated by the best! Sonia is the office manager and is also amazing. Everyone is very caring.

Oveedue review, should have done it sooner.; My Grandma had an appointment at 3:00pm. We didn’t get seen until about 4:45. The waiting room was packed. I was furious. Up until the point when he came into the room. He explained everything so well. Both the pros and the cons. He gave us the information to make a decision on what’s best for my grandmother. I was very impressed by his bedside manor. We went ahead with the procedure and it went great. One night in the hospital and a few days to recover.

If we could Dr. McKenzie 10 stars we would! He performed my moms heart procedure yesterday and we are extremely pleased. My mom who is scared of every little thing was freaking out, but Dr. McKenzie took great care of her. He was very gentle with her and my mom and I are extremely grateful. Thank you Dr. McKenzie for saving my moms life. You are God sent.

Dr. McKenzie is a board-​certified internist and cardiac electrophysiology specialist which requires specialized training. He saved my life by diagnosing a very serious heart condition and implanting a pacemaker/​defibrillator. Internal medicine cardiologists do not qualify for implanting defibrillators and do not qualify for prescribing a heartbeat regulating drug called Tikosin. He has saved my life at least twice by catheter ablation. As a result, I have many more added years of life. I am deeply grateful to him and I guess that says it all.