Physician Directory - Specialty Descriptions Following is a list of physician specialties followed by descriptions. Once you find the specialty you are looking for, click on one of the following links to find a physician. - Find a physician by name. Find a physician by location. Find a physician by specialty. Using This Database: Click on the black triangles on the title bar to change the sort order. Click on a blue triangle to expand or collapse that category. Specialty Description The Pulmonologist diagnoses and treats pneumonia, pleurisy, asthma, occupational diseases, bronchitis, sleep disorders, emphysema, and other complex disorders of the lungs. Pulmonologists test lung functions in many ways, endoscope the bronchial airways, if necessary, and prescribe and monitor mechanical assistance to ventilation. Expand  |  Collapse