Dr. Mostafavi


Dr. Said Mostafavi is a leading Sleep Medicine and Pulmonary specialist in Los Angeles, California. For over 25 years, Dr. Mostafavi has established his practice based on the mission of providing each patient with an individualized approach to the diagnosis and resolution of their respiratory problems, sleep issues, and the optimization of their wellness.

As a board-certified pulmonary and sleep physician and pioneer in the field of sleep medicine in Southern California, Dr. Mostafavi has 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, Dr. Mostafavi founded and established Advanced Sleep Medicine Services in 1994, one of the very first, and currently leading, independent providers of sleep medicine testing and durable medical equipment in Southern California. Dr. Mostafavi now serves as the Chief Medical Officer for ASMS.

Dr. Mostafavi 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, he has appeared on multiple radio and television programs including, NBC, CNN, KCAL 9 News, KNX 1070 and the TV programs ‘The Biggest Loser’ and ‘Extra’.

Dr. Mostafavi completed his 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.

Dr. Mostafavi 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 Pulmonary Disease

  • 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)