Dr. Quiñones holds board certifications in internal medicine, pulmonary medicine and critical care medicine. He has 25 years of experience in treating pulmonary diseases. Dr. Quiñones received his medical degree from Baylor College of Medicine in Houston, Texas. He completed his internal medicine residency and his pulmonary medicine fellowship at Washington University Medical Center in St. Louis.

His services include, but are not limited to the treatment of COPD, asthma, lung cancer, interstitial lung disease, and sleep disorders. He is highly qualified to perform bronchoscopies, thoracentesis, and place chest tubes.

In addition to English, Dr. Quiñones speaks Spanish and French. He is on staff at SSM Health St. Mary's Hospital - St. Louis, and offers both inpatient and outpatient consultations.