Dr. John Mahan graduated from Georgetown University Of Medicine in 1974.
Dr. Mahan has two offices in Pennsylvania where he specializes in Pulmonology, Internal Medicine and Critical Care Medicine. Learn more.
Dr. Mahan works with nine doctors including Dr. Richard Shusterman and Dr. James Black.
Pulmonologists are specialized physicians who diagnose and treat diseases and disorders of the respiratory tract. As a respiratory specialist, Dr. Mahan may diagnose and treat pulmonary disorders such as asthma, pulmonary fibrosis, lung cancer, lung disease, chronic obstructive pulmonary disease (COPD), emphysema and bronchitis, among a host of others.
The specialty of internal medicine is an area of primary care for adults. Dr. Mahan specializes in diagnosing and treating cross-system illnesses that may affect multiple organ systems. When necessary, Dr. Mahan also can refer patients to specialists. For example, patients with serious gastrointestinal issues may be referred to a gastroenterologist for additional diagnostic tests or treatment options.
Critical care specialists like Dr. Mahan provide life-saving care for patients in critical condition. Patients are usually cared for in within intensive care units (ICUs), and may receive life and organ support. Dr. Mahan may also work to stabilize patients and perform time-sensitive, potentially life-saving procedures.
Georgetown University School of Medicine
MD • 1974
Please Note: The information displayed below is sourced from the 2014 Medicare Physician and Other Supplier National Provider Identifier (NPI) Aggregate Report. It's important to remember that the statistics below are not inclusive of all patients treated by Dr. Mahan, but only those who participate in Medicare.