Dr. Zeffren and his staff are wonderful. They are friendly and helpful. He is very knowledgeable and has been treating my asthma and allergies for years very effectively. The place is always spotless and they make sure that their patients are taken care of in a timely fashion. I have never had a problem getting an appointment when needed, either.

I trust Dr. Zeffren and his staff implicitly with my healthcare needs. As a Nurse, I know how important it is to feel like you can trust a Physician and anyone on their staff.

I HIGHLY recommend Dr. Zeffren and his ever-so-pleasant and friendly staff to everyone I know (and people I don't know).

Submitted Sept. 19, 2019

My family has been going to Dr. Zeffren for many years now and we've been extremely happy with him and his staff. Dr. Zeffren is extremely knowledgeable and takes the time to explain things very thoughtfully. His staff has been extremely patient with my son who has a phobia of needles and sometimes needed 2 shots every week. I have recommended Dr. Zeffren to friends and family and will continue to do so. Allergy season in my house has become somewhat tolerable in my house thanks to him!

Submitted Sept. 17, 2019

I am seeing Dr. Zeffren not for any allergy reasons, but rather his immunology expertise. This puts a different perspective to his medical direction than most will be used too. He is extremely charismatic, genuinely helpful, totally thorough, and extremely helpful. I have a very strange case medically which requires many specialists visits. Dr. Zeffren is kind of the quarter back of all of them. He does a great job of steering the direction of my treatment. I saw another review on here that said he was arrogant. I think they were mistaking his bluntness with arrogance. He likes to get to the point as quickly as possible. This gets me in and out quicker. I highly recommend him to anyone who needs immunology help.

Submitted Dec. 17, 2013

I found Dr. Zeffren to be very arrogant, cocky, impatient and uncaring which resulted in a terrifying ER visit with an anaphylaxis reaction to peanuts. If he would have addressed my concerns a couple months ago this would have not happened. There is such thing as bloodtests for allergies if the skin test fails. I have seen Winnie and she was wonderful but a bit scattered. The office staff was also wonderful and accomadating. With everything that happened that should have been prevented, I will not be returning. If you are going to this office just stay clear of DR. Zeffren.

Submitted May 14, 2010

This practice is wonderful!!! My husband and I both go here and have been treated for asthma and allergies. I have never personally seen Dr.Z, but I have seen his partner Dr.Suartz and the Nurse Practitioner, Winnie. They are extremely thorough and take the time to review your chart and medical history every time you visit. The doctors there are at the top of their field and have been written about in medical journals, etc. If you have breathing problems, this is most definately the place to go for treatment. I base my review on the value of service, not on personality querks and what-not that some people find important. The most important aspect to consider when visiting a doctor is the quality of the health service itself. This practice withstood my high standards of consideration and would absolutely be a recommendation for anyone considering a new doctor. Very clean practice, very helpful and will listen to what you have to say. Dr. Suartz always takes his time.

Submitted Dec. 26, 2008

Dr. Zeffren is part of the Allergy & Asthma Consultants in Altamonte Springs. As a doctor, he was nice and attentive. Most of the time, though, the nurses worked with me. He was basically there to check the results of various tests that were ran. The nurses administered the test for allergies, and provided the allergy shots. They are all pleasant and the office is well kept. Unfortunately I had to stop going because my insurance company suddenly stopped paying for my allergy injections, otherwise, I would have stayed with them.

Submitted Feb. 18, 2005