About Dr. Dr. Simon N. Allo, MD

Welcome to the practice of Dr. Dr. Simon N. Allo, MD, an experienced cardiologist serving Denton, Texas. We are committed to providing compassionate, evidence-based cardiovascular care with a focus on prevention, early detection, and personalized treatment plans.

Medical Disclaimer: The information on this website is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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Patient Reviews

Patient

Run from this man. Does not listen. Does not care. Missed major issues that landed my father in the CICU for 9 days and still refuses to see his errors. Luckily, there are much more competent physicians in the area! Save yourself the trouble and literal heartache.

Patient

Dont walk, run from this pathetic excuse for a cardiologist. After seeing him for 3 years my insurance had me switch to a different doctor who immediately discovered a congenital heart defect which was so blatantly obvious he couldnt believe Allo was so oblivious to the previous ecg's I'd had. After another three years went by his office called me to pay an outstanding bill for a "visit" which clearly did not happen. The nerve and incompetence of these people is unreal.

Patient

★★★★★

Dr. Allo and his entire staff were very personable and professional. From the minute I arrived they took care of me and answered all my questions. Dr. Allo spent time with me to ensure I understood my medical condition. He explained my test results and the medication I needed and what I could expect from them. I left confident that I could trust his advice. I would highly recommend him.

Patient

I have been a fair number of Doctors as I have worked all over the US, and this guy is by far the Worst. I think any of the good reviews here, he must have added himself. He is arrogant has a terrible style of explaining things, prescribes unnecessary meds. and when I transferred to a new Cardiologist, he would not transfer my records and impeded access to my heart monitor from the new Doctor, hence impeding my healthcare for almost three months...a very unethical man. I also received an inappropriate bill. I do not recommend this guy.

Patient

Fiance and I scheduled her follow up from the EMERGENCY ROOM with these people. Front office completely dropped the ball. We were called on TUESDAY and told see you THURSDAY. Then when we arrive we are told our appointment was for WEDNESDAY, the day before! The earliest they could see us again would be the 10th. We don't have that time to lose. I'm completely disgusted with how the front office spoke to me on the phone when I called to rectify the situation and ask for some assistance. Rude and unprofessional. I hope you fire the kids up front and get some competent help Simon. They made you look really bad today.

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