BJC Medical Group Pulmonology at O'Fallon offers a complete range of diagnostic and therapeutic services for patients who need care or rehabilitation for breathing problems. In addition, they offer smoking cessation and endobronchial ultrasound services. Their expert providers treat asthma, bronchiectasis, COPD, chronic lung functions, hemoptysis, histoplasmosis, interstital lung disease, lung cancer, pleural effusion, pneumonia, pulmonary emboli, pulmonary fibrosis, pulmonary hypertension, pulmonary nodules, sarcidosis, and sleep apnea and disorders. If you are struggling with breathing problems, BJC's compassionate providers are here to help you.