Roger Paul Hirst, MD - Mercy Regional Medical Center

Alexander Fraley, M.D., board-certified interventional cardiologist, specializing in cardiovascular disease, nuclear cardiology, vascular/endovascular medicine.

Barry Holcomb, M.D., is a fellowship-trained pumonologist at Four Corners Pulmonary and Critical Care Medicine.

Erin Crowley, MD, MSc, specializes in the treatment of COPD and emphysema, asthma, interstitial lung disease and pulmonary fibrosis, pulmonary hypertension, and bronchiectasis. With a comprehensive care philosophy, Dr. Crowley is committed to delivering patient-centered care that focuses on open communication and understanding the unique needs and priorities of each patient. She strives not only to treat their diseases but also to improve their quality of life.Dr. Crowley's earned a Bachelor's degree in Chemistry from Butler University and a medical degree from Indiana University School of Medicine. She completed her residency training in Internal Medicine and Pediatrics at Indiana University School of Medicine and went on to pursue a fellowship in Adult Pulmonary and Critical Care Medicine at the same institution. Additionally, she holds a Master's Degree in Clinical Research from Indiana University Purdue University Indianapolis, further enhancing her expertise in the field.Outside of her medical practice, Dr. Crowley cherishes spending time with her husband and two children. They enjoy engaging in outdoor activities such as hiking, camping, exploring national parks, biking, and skiing.