Mamoun Najjar specializes in pulmonary, sleep and critical care medicine. He served as an Assistant Professor for Brown University Medical School and in the recent past, maintained an active practice in Rhode Island where he was the founder and director of a Pulmonary Function Testing, Metabolic stress testing and ABG lab.


Dr. Najjar is Board Certified in Pulmonary, Critical Care, and Sleep Medicine. He received his medical degree from the Medical School at Jordan University of Science and Technology and completed his Internal Medicine residency from State University of New York (SUNY) at the Stony Brook campus at Nassau University Medical Center in East Meadow, New York. His Fellowship in Pulmonary and Critical Care was completed at Albert Einstein University Campus at Long Island Jewish Medical Center in New Hyde, New York.


Dr. Najjar has office locations in both Decatur and Madison to serve his patients. Please contact Dr. Najjar for all of your pulmonary and sleep medicine issues.




Mamoun, I. Najjar, MD, FCCP, FAASM

1222 Somerville Road, S.E.
Decatur, Alabama 35601
(256) 341-0152 | Fax: (256) 341-0587

Toll Free: 1-866-95-APNEA
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Madison Office
105 W Dublin Dr.
Madison, AL 35758


Monday-Thursday: 8am-5pm
Friday: 8am-12pm





How Do I know If I Have A Sleep Disorder?


There are more than 80 sleep disorders, however, the great majority are characterized by excessive sleepiness during waking hours. If you experience any of these symptoms, you may have a sleep disorder.



What is a pulmonologist?


Pulmonology involves the study and treatment of respiratory diseases and disorders. A pulmonary physician, or pulmonologist, treats diseases of the lungs, airways, and all other respiratory organs. The pulmonologist diagnoses and treats pneumonia, asthma, bronchitis, emphysema and other respiratory problems, and uses a variety of invasive and non-invasive diagnostic techniques to help patients.

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An overnight sleep study


An overnight sleep study, known as a polysomnogram, is necessary to diagnose many sleep disorders. This is a painless procedure in which a variety of physiological parameters are recorded (breathing patterns, air flow, oxygen levels, eye movements, brain waves, heart rate and rhythm, leg movements, snoring) from electrodes attached to different parts of the body.


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1222 Somerville Road, S.E. • Decatur, Alabama 35601 • Toll Free: 1-866-95-APNEA