John Penek, MD, has 30 years experience in the practice of pulmonary diseases, sleep disorders and critical care medicine. He is also an experienced expert witness. For the past 25 years, Dr. Penek has served as a medical-legal consultant in numerous cases including independent medical exams, reports, depositions and court testimony, throughout the country. Dr. Penek has been engaged by both plaintiff and defense attorneys and criminal defense attorneys.


Pulmonary Cases

Dr. Penek completed an NIH funded post-doctorial Fellowship in Pulmonary Diseases at the University of California Davis/Irvine. Beginning in January 1980 he accepted the position as Chief of Pulmonary and Critical Care … Read more.

Sleep Medicine Cases

The field of Sleep Medicine evolved from the world of pulmonary medicine in the early 1980's. During that time, Dr. Penek established the first outpatient sleep diagnostic services and co-founded the New Jersey Sleep Society … Read more.

DWI / DUI Cases

Dr. Penek has provided opinion and expert witness testimony in numerous cases wherein medical disorders have provided significant mitigating factors in cases of possible DWI charges. Numerous medical conditions … Read more.

John Penek, MDDr. Penek is a board-certified diplomate of the National Board of Medical Examiners of the US, the American Board of Internal Medicine, Subspecialty Board – Pulmonary Diseases, and the American Board of Sleep Medicine. He is a fellow of the American College of Chest Physicians and the American Academy of Sleep Medicine, and is a member of the American Academy of Disability Evaluating Physicians. Dr. Penek has also been a diplomate of the American Board of Internal Medicine-Sleep Medicine since 2007.