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Pulmonary and Critical Care Associates & Sleep Diagnostic Center

Lansdowne/Leesburg, VAReston, VA

offering in-person & telehealth
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"fully prepared me..."

This was an excellent appointment! Dr. Naghshin was very knowledgeable, thorough, friendly, helpful. He explained what to expect from this point forward, explained contingencies based on what exams we would be doing.

His receptionist, Mary, was great at helping set up another exam outside the office, as well as fully preparing me for my follow-up. I definitely recommend them!


"did not rush..."

I had an excellent experience in every single visit with Dr. Naghshin himself and his staff. I am generally hard to please, but I cannot complain about anything except wish was easier to get an appointment! Respectful and courteous towards patients, compassionate and knowledgeable. Spent time listening and did not rush to get out.


"extremely organized..."

Dr. Rennert has been my doctor for over 15 years. He has helped me stabilize my asthma which was previously severe and difficult to control. He is an excellent, caring, physician. The office is extremely organized and well-run. The staff is caring and friendly.


"expert in his specialty..."

Dr. Rennert is one of the most caring, empathetic, vigilant, doctors that I have been under the care of. Not only is he an expert in his specialty area but he approaches patient care in a very approachable manner . I’m lucky to have him in my network of healthcare providers.