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Elliott Exar, M.D.

Elliott Nicholas Exar, M.D.

Headshot of Elliott Exar


Neurology, Pulmonary Disease, Sleep Apnea, Sleep Disorders, Sleep Lab, Sleep Medicine, Snoring Disorders more

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Howard County General Hospital Sleep Lab

Appointment Phone: 800-937-5337
11085 Little Patuxent Parkway
Medical Arts Building, Suite 210
Columbia, MD 21044 map
Phone: 800-937-5337 | Fax: 866-214-8799


Elliott Exar, M.D., is a pulmonologist specializing in sleep medicine. Dr. Exar treats patients with a variety of sleep disorders, including sleep apnea. He practices sleep medicine at the Johns Hopkins Center for Sleep at Howard County General Hospital in Columbia. 

Dr. Exar earned his medical degree from the Johns Hopkins University School of Medicine, and then completed an internship and residency at The Johns Hopkins Hospital. After his residency, Dr. Exar completed fellowships in pulmonary and critical care and sleep medicine at the Medical University of South Carolina. more

Departments / Divisions

Centers & Institutes

  • Sleep Disorders Center at The Johns Hopkins Hospital



  • MD; Johns Hopkins University School of Medicine (1993)


  • Internal Medicine; Johns Hopkins University School of Medicine (1996)


  • Pulmonary and Critical Care Medicine; Medical University of South Carolina Health (1999)

Board Certifications

  • American Board of Internal Medicine (Critical Care Medicine) (2001)
  • American Board of Internal Medicine (Pulmonary Disease) (1998)
  • American Board of Internal Medicine (Sleep Medicine) (2001)

Research & Publications

Selected Publications

The Association of Upper Airway Resistance with Periodic Limb Movements. Exar, EN, Collop, NA. Sleep  2000; 24(2): 188-192.

The Upper Airway Resistance Syndrome. Exar, EN, Collop, NA. Chest 1999; 115(4): 1127-1139.

Lack of Efficacy of Heliox in Respiratory Effort Related Arousals. Exar, EN, Collop, NA. Sleep 1999; 22: S59-60.

Increased Upper Airway Resistance and Periodic Leg Movements: Association in Individuals and in a Population. Exar, EN, Collop, NA. Am J Resp Crit Care Med 1999; 159930: A562.

Association Between Periodic Leg Movements and Increased Upper Airway Resistance. Exar, EN, Collop, NA. Am J Resp Crit Care Med 1998; 157(3): A59.

Activities & Honors


  • American Academy of Sleep Medicine


  • American College of Chest Physicians


Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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