Feingold Medical + Legal provides expert analysis and testimony in the areas of pulmonary pathology, epidemiology, radiology, and photomicrography.


Epidemiology is the study of how diseases affect large populations. Epidemiology is an essential element in the modern determination of the cause of disease and selection of therapy. Modern epidemiology grew from the study, beginning in the early 20th century, of pulmonary disease, including infectious disease such as tuberculosis, occupational lung disease such as silicosis and pulmonary malignancy such as lung cancer. The essential importance of epidemiology to pulmonary medicine can be appreciated by a perusal of any textbook of pulmonary medicine. A board certified pulmonologist is required to have a high level of expertise in the application of epidemiology to patient care. As a board certified pulmonologist, Dr. Feingold has special expertise in epidemiological concepts and the application of epidemiology to diagnosis, selection of therapy, prognosis and other aspects of patient care. Furthermore, Dr. Feingold has a special interest in the science of epidemiology and has studied the epidemiological literature for more than 3 decades.

Dr. Feingold has written a series of computer programs which apply statistical formulas to epidemiological problems. Dr. Feingold participated in the creation of a computer program for the determination of the presence or absence of statistical confounding in data from the American Cancer Society Cancer Prevention Study II (for tobacco litigation, not for the American Cancer Society).  Dr. Feingold was the director of a team of programmers who wrote a complex statistical program for the identification of reader bias in the interpretation of chest x-rays of a large cohort of asbestos exposed workers (the Baltimore cohort).

Pulmonary Pathology and Photomicrography

Many serious and life-threatening pulmonary diseases have similar clinical and radiological manifestations; therefore, the ultimate resolution of the differential diagnostic process in pulmonary medicine often requires surgical biopsy and microscopic examination. Candidates for board certification in pulmonary medicine are asked, and are expected to be able to answer, questions regarding the pathology of lung disease.

Dr. Feingold has a special interest in the pathology of certain kinds of lung disease, including lung cancer, mesothelioma and interstitial fibrosis. Dr. Feingold also has a special interest and expertise in the use of immunohistochemical staining for the differential diagnosis of lung cancer and mesothelioma. Dr. Feingold uses an advanced microscope (Nikon eclipse 80i). He routinely reviews pathology slides and prepares photomicrographs using a Qimaging Micro Publisher 5.0 RTV camera attached to his microscope. Dr. Feingold routinely reviews the pathology slides of his clinical patients and of medical-legal cases sent to him for review.

Feingold Medical Legal - Asbestos photomicrograph by Dr. Allan Feingold

Feingold Medical Legal - Asbestos photomicrograph by Dr. Allan Feingold


Chest radiology is the single most important diagnostic modality in pulmonary medicine. Almost all patients who have pulmonary disease require chest radiology. A board certified pulmonologist is required to have a high level of expertise in the interpretation of chest radiology. Dr Feingold reads and interprets numerous chest x-rays and CT scans every day. In more than 30 years of practice, Dr. Feingold has read and interpreted tens of thousands of chest radiology images. Furthermore, in 1985 Dr. Feingold became a diplomat of the United States Center for Disease Control, National Institute for Occupational Safety and Health “B” reader program.

Dr. Feingold has been re-certified by NIOSH every 4 years (as required) and is currently a NIOSH certified B reader. The B reader program was established by Congress, as stipulated in Title 42, Section 203, Part 37.51, Federal Mine Safety and Health Act of 1977 and its amendments. The B reader program establishes standards of expertise for the interpretation of chest radiology of lung disease caused by occupational dust inhalation, that is, pneumoconiosis. Dr. Feingold is one of only approximately 400 NIOSH certified B readers and he has been certified a total of 7 times.

Genetic and Lab Analysis

Feingold Medical Legal provides state of the art documentation by means of photomicrography, immunohistochemical analysis, asbestos body detection, and DNA analysis.  Dr. Feingold has presented such evidence in multiple courts throughout the United States.

Feingold Medical Legal - Photomicrography, Epidemiology, and Genetic Analysis

Amino acid sequence of mutated EGFR protein 856 to 863: Phenylalanine(F)-Glycine(G)-Arginine(R)-Alanine(A)-Lysine(K)-Leucine(L)-Leucine(L)-Glycine(G)