Douglas Clark Johnson MD

Summary

• Dr. Douglas Johnson is a pulmonologist located in Springfield, MA, specializing in asthma, COPD, and sleep medicine. He graduated from Harvard Medical School in 1976 and completed a fellowship in Pulmonary Disease at Mass General Brigham/Massachusetts General Hospital/Harvard Medical School. He also completed his internship and residency in internal medicine at Saint Louis University School of Medicine Affiliated Hospitals. He is board certified in Pulmonary Disease and Sleep Medicine. Dr. Johnson practiced at Mass General Hospital for many years, and has been practicing at Baystate Medical Center since 2012. His clinical experience includes sleep medicine, pulmonary function testing, general pulmonology, and cardiopulmonary exercise testing. Dr. Johnson has authored multiple publications, with topics ranging from sleep medicine, pulmonary function testing, tracheostomy tube manometry, spirometry reference equations to PAP therapy, many of which have been cited by other publications.