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Photo of David M Margelli

David M. Margelli, PA-C

Physician Assistant
Languages: English
Professional Statement
Sleep issues have such a varied and far-reaching affect on patients - in their personal lives, the lives of their families and friends, their jobs, their past times... I am always glad when a patient has come in to see us at the sleep clinic, there are so many ways we can help. I am honored that patients trust us with their care. David Margelli is a board-certified physician assistant who received his medical training at Albany Medical College in Albany, New York. A University of Washington graduate and former paramedic, Mr. Margelli started his PA practice in general cardiology in 1999. He has been practicing sleep medicine at Swedish since 2004 and is also the Director of Sleep Medicine Advanced Practice Clinicians. In addition, Mr. Margelli is also a clinical research investigator. The author of numerous articles on sleep topics, he is a frequent speaker at meetings for both community groups and medical providers. He has been an invited lecturer on sleep medicine at the American Academy of Physician Assistants national education conference.
Field of Study
Albany Medical College
Medical School
Physician Assistant Studies
Board Certifications
  • National Commission on Certification of Physician Assistants NCCPA, Internal Medicine
Clinical Interests
  • bedwetting
  • bruxism
  • cataplexy
  • circadian rhythm disorder
  • confusional arousals
  • daytime sleepiness
  • home sleep study
  • movement disorders
  • narcolepsy
  • nightmares
  • obesity hypoventilation syndrome
  • periodic limb movement disorder
  • polysomnography
  • restless legs syndrome
  • sleep abnormalities
  • sleep apnea
  • sleep disorders
  • sleep paralysis
  • sleep phase disorder
  • sleep related hallucinations
  • sleep talking
  • sleep-related eating disorder
  • snoring
  • somnambulism
Swedish Sleep Medicine - Cherry Hill
550 17th Avenue Suite A20
Seattle, WA 98122
Swedish Sleep Medicine - West Seattle
3400 California Avenue Southwest Suite 210
Seattle, WA 98116