Dr. Kradin began his medical career at Jefferson Medical College in Philadelphia, Pennsylvania. He then went on to complete residencies at both Massachusetts General Hospital and Pennsylvania Hospital. He is board certified in Internal Medicine and Pulmonary Disease by the American Board of Internal Medicine as well as being certified in Anatomic Pathology by the American Board of Pathology.
Dr. Kradin has a number of clinical interests including Chronic Fatigue Syndrome, Interstitial Lung Disease, Multiple Chemical Sensitivity and Pulmonary Immunology.
He also holds an Associate Professor position of Pathology at Harvard Medical School. There, he has been a director of a course on current concepts in asbestos related pulmonary disease. Dr. Kradin is also an Associate Pathologist at Massachusetts General Hospital in the Immunopathology Unit. His techniques include tissue culture and immunocytochemistry, flow cytometry, Northern blotting and immunocytochemistry. Dr. Kradin has authored and co-authored a number of scholarly articles including "Complete pulmonary venous occlusion after radiofrequency ablation for atrial fibrillation" which was published in the Annals of Thoracic Surgery in January 2009. He also co-authored "Nodular amiodarone lung disease" published in the American Journal of Surgical Pathology in November of 2008.

Diagnostic Pathology of Infectious Disease presents a comprehensive, organ-based approach to the effective and accurate diagnosis of infectious diseases. Dr. Richard L. Kradin covers the latest information on H1N1, as well as the use of immunohistochemical stains, PCR, Immunoperoxidase, and other molecular techniques for a current representation of the field. High-quality, full-color illustrations and differential diagnosis tables accompany each lesion so you can quickly identify and diagnose whatever you see. Online and print, this reference is an invaluable tool for the accurate diagnosis of any infectious disease-from the common to the most challenging.