Audrey Liu Profile Image

Medical Director, Sleep Services at Mercy


  • Pulmonary and Critical Care

Board Certifications:

  • Pulmonary Disease
  • Sleep Medicine
  • Internal Medicine


  • English
  • Mandarin

Areas of Interest:

  • Sleep Medicine and Interventional Bronchoscopy


  • McAuley Plaza at Mercy
  • Mercy Personal Physicians at Overlea

Audrey Liu, M.D.

Audrey H. Liu, M.D., is a skilled pulmonologist at The Lung Center at Mercy in Baltimore, Maryland.  Dr. Liu is experienced in a full range of pulmonary medicine with special interests in sleep apnea and sleep disorders and bronchoscopy.  She is Board Certified in Pulmonary Disease Medicine, Critical Care Medicine and Sleep Medicine. Dr. Liu customizes every patient’s treatment plan to improve patient care and recovery.

Clinical Expert in Sleep Disorders

Dr. Audrey Liu serves as Medical Director of Sleep Services at Mercy and brings a strong commitment to the highest quality of care in the treatment and diagnosis of sleep apnea and other sleep disorders.  Dr. Liu uses her extensive clinical and research experience to help prevent sleep disorders and to improve diagnosis, treatment and patient outcomes.

Author, National Presenter & Award Winner

Dr. Audrey Liu is a published author and has presented her research on a national level. She has been named a "Top Doctor" in Pulmonary Disease by Castle Connolly Medical. 

Dr. Liu is the recipient of numerous clinical awards including the National Institutes of Health Ruth Kirchstein National Research Scientist Award and the American Thoracic Society Travel Award. 

Education & Fellowships
  • Fellowship – Johns Hopkins University
  • Residency – Johns Hopkins Bayview Medical Center
  • Internship – Johns Hopkins Bayview Medical Center
  • Medical Degree – McGill University Faculty of Medicine
Associations & Memberships
  • American Academy of Sleep Medicine
  • American College of Chest Physicians
  • American Thoracic Society

Sleep Needs Of Women Versus Men - Dr. Audrey Liu - Mercy

Mercy Medical Center's Dr. Audrey Liu, Director, The Sleep Center At Mercy, discusses sleep needs of women versus men. When it comes to men and women and the lack of sleep, researchers say women may be more at risk for certain health problem. Learn more at

The Cancer Doctors at Mercy

The Cancer Doctors at Mercy treat a wide range of cancers, relying on advanced technologies, compassionate care, leading edge research and clinical trials, and demonstrated medical expertise to provide some of the best treatment options available to fight cancer and restore hope and vitality.


Insurances Accepted

See a list of insurances accepted at Mercy. Restrictions may apply. Patients should confirm coverage with their carrier prior to appointment date.