Marjorie Yong, M.D.

Call (818) 789-0203


Marjorie Yong, M.D. was a bariatric physician with a private wellness center called Yong at Heart when she noticed that many of her patients would come to her seeking treatment for fatigue. Dr. Yong was able to draw a connection between the nation’s growing obesity epidemic and its growing sleep apnea epidemic. Since then, she has opened a sleep lab called Sleepy Time Lab in Encino, California, where she takes a holistic approach to treating her sleep apnea patients. From nutrition and education to CPAP and oral appliances designed to open up the respiratory airways, Dr. Yong will explore the most non-invasive treatments available first and foremost. That way, her patients will reap long-term benefits that improve health long after they leave her office.

Dr. Yong received her medical degree from the renowned Medical College of Georgia. She has completed residency work at hospitals affiliated with the University of California, Los Angeles—the doctor’s undergraduate Alma mater—where she also served as a Professor of Medicine. In addition, Dr. Yong has been a pioneer of medical practice at many other institutions. She is a member of the Medical Reserve Corps of Los Angeles and has been featured on the Discovery Health Channel as well as Entertainment Tonight.

Sleep patients who visit Dr. Yong at Sleepy Time Lab have the option of undergoing a number of different sleep tests. Diagnosis for various sleep disorders can be made after an overnight sleep study, or polysomnography. Sleepy Time Lab has all the necessary equipment to monitor and record patients’ heart rate, brain activity, blood-oxygen circulation, rapid eye movement (REM) cycles and muscle movement, among other parameters. After a sleep study at Sleepy Time Lab, patients with sleep disorders will be started on personalized treatment that best suits their desired lifestyle.

Sleepy Time Lab has a record of conducting successful overnight sleep studies for its patients. Dr. Yong provides pillows and bedding but encourages her patients to make themselves at home in the sleep lab by bringing their own books, pajamas, toiletries, regular medications and blankets or pillows of choice if applicable. This way the patient is more likely to sleep soundly and provide an accurate reading for the sleep specialists. Each sleep study participant is given a single bedroom with a bathroom only a few steps away. The support team at Sleep Time Lab is known for creating a warm and friendly atmosphere for all its visitors. They offer appointments during weeknights as well as weekends in order to accommodate their guests. Dr. Yong has helped obese patients tackle their sleep apnea and other related medical issues hands-on for more than 10 years.

Recent Answers


Everyone in this office is wonderful and very helpful.
Dr. Yong shows a sincere concern for your health and emotional well-being...

Insurance Carriers

  • Aetna
  • Blue Cross and Blue Shield
  • Blue Cross and Blue Shield - BlueCard PPO
  • Blue Cross and Blue Shield of California PPO
  • Cigna
  • Cigna - Open Access
  • First Health PPO
  • Great West Healthcare PPO
  • Health Net CA Large Group PPO
  • HealthNet
  • United HealthCare
  • United HealthCare - Choice Plus POS
  • United HealthCare - Options PPO
  • WellPoint

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