Dr. Rupan is a board‑certified pulmonary medicine, sleep medicine and critical care medicine, specialist serving adults in Cumberland plateau and Cookeville, Tennessee. He commonly treats problems such as COPD, asthma, chronic bronchitis, lung nodules, abnormal lung imaging, complex pneumonia, interstitial lung disease, sleep disorders and obstructive sleep apnea. He is affiliated with VHAN (Vanderbilt Health Affiliated Network) and Cookeville Regional Medical Center, and is known by many patients for his thorough evaluations, clear explanations, and commitment to finding practical, affordable, economic individualized treatment plans.