As a board-certified pulmonary and sleep physician and pioneer in the field of sleep medicine in Southern California, I have extensive experience in the diagnosis, treatment, and management of sleep-related and respiratory diseases including, but not limited to, sleep apnea, snoring, chronic cough, asthma, COPD, bronchitis, shortness of breath, pneumonia, daytime sleepiness, insomnia, narcolepsy, pulmonary hypertension, emphysema, and interstitial lung disease.

Realizing the increasing incidence of sleep disorders and the shortage of sleep disorder treatment facilities in Southern California, I founded and established his first sleep diagnostic center in Encino, California in 1998. He later on expanded the reach of his sleep diagnostic Company to nine different cities in Southern California making it the largest Provider of Sleep medicine diagnostic and treatment.

In 2021 Dr. Mostafavi started a new Sleep Diagnostics center , Century Sleep Inc. He is currently serving as chief medical officer of this company Which has contracts with all PPO insurances, Medicare as well as IPAs and HMO’s Performing sleep studies seven nights a week. Dr. Mostafavi’s knowledge , experience and commitment to quality of care, Makes century sleep Inc. a center of excellence in providing sleep diagnostic and treatment services.

He has also published articles in peer-reviewed journals including Chest and Respiration, and has been a frequent lecturer on the monitoring, diagnosis and treatment of sleep disorders. Additionally, I have appeared on multiple radio and television programs including, NBC, CNN, KCAL 9 News, KNX 1070 and the TV programs ‘The Biggest Loser’ and ‘Extra’.

He successfully completed my training in Pulmonary, Critical Care, and Sleep Medicine at UCLA and was formally trained in Sleep Medicine at Cedars-Sinai Medical Center under the mentorship of the world-renowned sleep specialist, Dr. Philip Westbrook.

He now also serves on the clinical faculty at the UCLA David Geffen School of Medicine and at Cedars-Sinai Medical Center.


  • Double-board certified in Sleep Medicine by:
         - American Board of Sleep Medicine (ABSM)
         - American Board of Internal Medicine (ABIM)
  • Board certified in Internal Medicine
  • Fellow of The American Academy of Sleep Medicine (AASM)
  • Fellow of The American College of Chest Physicians (ACCP)
  • Clinical Faculty at UCLA School of Medicine
  • Board Member for The California Sleep Society (CSS)
  • Board certified in Pulmonary Disease
"Approximately 1 in 15 adults in the US are afflicted with moderate to severe sleep apnea. The good news is that there is effective, non-invasive, non-pharmacological treatment."
Years Experience
in sleep and pulmonary medicine
from accredited medical communities
Patient Review
40+ testimonials

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