Dr. Daniel F. Callahan

Colin Swenson is a Pulmonary Medicine provider in Atlanta, Georgia. Dr. Swenson has been practicing medicine for over 17 years and is rated as a Distinguished provider by MediFind in the treatment of Bronchiectasis. His top areas of expertise are Bronchiectasis, Nontuberculous Mycobacterial Lung Disease, Lung Metastases, and Allergic Bronchopulmonary Aspergillosis.

Varsha Taskar is a Pulmonary Medicine specialist and a Sleep Medicine provider in Kennesaw, Georgia. Dr. Taskar is rated as a Distinguished provider by MediFind in the treatment of Bronchiectasis. Her top areas of expertise are Cystic Fibrosis, Secondary Immunodeficiency (SID), Lung Metastases, and Acute Interstitial Pneumonia. Dr. Taskar is currently accepting new patients.

Coy Lassiter, M.D., graduated magna cum laude with a bachelor of science in biology from the University of Georgia. He earned his medical degree from Mercer School of Medicine in Macon, Ga. He completed his residency in internal medicine, as well as his pulmonary and critical care fellowship at Emory University School of Medicine. He served as chief resident of internal medicine at Emory University Hospital from 2003 to 2004.Prior to joining Piedmont Physicians, Dr. Lassiter was in practice with Georgia Lung Associates and has been practicing medicine for 13 years. He holds board certifications in critical care medicine, pulmonary disease and internal medicine and has training in advanced bronchoscopy. He prides himself on being a well-rounded physician and maintains special interests in interventional bronchoscopy, lung cancer and pulmonary thromboembolism.Dr. Lassiter is considered to be warm and friendly and his fellow physicians describe him as having a great vision and leadership for the practice of medicine. His patients consider him compassionate to their needs and devoted to excellence in medical practice.Dr. Lassiter welcomes new patients and accepts most insurance plans. Dr. Lassiter is rated as a Distinguished provider by MediFind in the treatment of Bronchiectasis. His top areas of expertise are Lung Metastases, Bronchiectasis, Chronic Obstructive Pulmonary Disease (COPD), Lung Nodules, and Gastrostomy.