The Pulmonary Group of Central Florida is one of only two practices in Lake County that offers “the gold standard” of pulmonary function testing that is more comfortable for the patients and generates more reliable results so Dr. Diaz can identify your condition and determine treatment.

The new machine is the most accurate way to measure lung volume. During the test, patients breath through a mouthpiece while wearing nose clips.

In addition to measuring how quickly you can move air out of your lungs, the machine measures how well gases, such as oxygen, are being absorbed into your blood from your lungs.


Our patients are important to us. We view them as more than customers in our business but as people whose health and well being we care about. Dr. Diaz is committed to your care and you will see him at every office visit.

Our experienced team of nurses and office staff will assist you at every office visit and will explain your diagnosis and treatment options so you can easily understand and feel comfortable about your care.

Any test or procedure you are asked to undergo will be fully explained to you beforehand, and any questions you have regarding that test or procedure will be answered to your satisfaction before we begin. We will provide written information to you and/or your family about the procedure, what to expect, and what you need to do to prepare for the procedure.

Pulmonary Group Of Central Florida Services

We offer expert diagnosis and comprehensive treatment of lung and breathing disorders, including:


Pulmonary function tests or lung function tests are used to detect lung diseases or to monitor the progression of a particular disease, such as COPD. The tests determine how much air your lungs can hold and how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood. The tests are also used to see how well treatment for a lung disease is working.

If you are having trouble breathing, the pulmonary function test can help the pulmonologist diagnose your condition and identify treatment to ease your breathing.

In the Spring 2009, Pulmonary Group of Central Florida was the first practice in the area to acquire a new, state-of-the-art Pulmonary Function Testing machine that offers greater convenience and accuracy.

The equipment provides more reliable results, quicker and the data is easier for the doctor and staff to review. The PFT machine allows the doctor to collect better quality data with less effort and more comfort for the patient.

Let Dr. Diaz And His Team Care For You

Do You Need A Referral?

If your insurance carrier requires you to obtain a referral from your primary physician before visiting Pulmonary Group of Central Florida, please be sure that your primary physician is aware of all of your pulmonary complaints so that he/she can accurately complete the referral form. We are authorized to treat only those conditions listed by your primary physician on the referral form. Without a proper referral form, we are not authorized to treat you. Our office staff will be glad to assist you in obtaining the appropriate referral form.