Alan S. Chanales, MD, FCCP, is a well-versed pulmonologist and critical care medicine specialist who diagnoses and treats patients at Gaithersburg Critical Care Associates LLC in Rockville, MD. Furthermore, he has staff memberships at Adventist Healthcare and Holy Cross Health. Dr. Chanales’ impressive professional journey spans thirty-seven years and his expanse expertise covers areas such as asthma and COPD. He feels that his success is primarily attributable to the time he spends to listen carefully to his patients until he fully understands the nature of their problems. He explains to them what is wrong and what their treatment options are. For more information about Dr. Alan S. Chanales, please visit https://www.adventisthealthcare.com/doctors/profile/alan-chanales/.