Yes Pulmonologist . Yes I had coughing with phlegm. I went to a pulmonologist on Long Island. He could not diagnose me. I called my Gastro from Mt Sinai Dr Itzkowitz , He had me make an appointment with Dr. DePalo Mt Sinai. I brought all my paper work from all testing I did on Long Island. He is the one that diagnosed me. He recommended I use a plastic breathing appliance called Aerobika. It helps but I also have acid reflux. You can look it up to see what it looks like. He is an excellent pulmonologist. I have had several things with my lungs and he was always spot on with diagnosis.