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Jonathan Jun, M.D.

Photo of Dr. Jonathan Jun, M.D.
  • Associate Professor of Medicine
Male

Languages: English, Mandarin

Expertise

Pulmonary and Critical Care Medicine, Sleep Medicine

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Insurance Information

Maryland

443-287-3313

Outside of Maryland

410-464-6641
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International Patients

+1-410-502-7683
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Locations

Johns Hopkins Outpatient Center

Appointment Phone: 443-287-3313
601 N. Caroline St.
Suite 1261
Baltimore, MD 21287 map
Phone: 443-287-3313 | Fax: 443-287-3312

Johns Hopkins Bayview Medical Center

Appointment Phone: 443-287-3313
5501 Hopkins Bayview Circle
Asthma and Allergy Center Suite 5B.81
Baltimore, MD 21224 map
Phone: 410-550-0115 | Fax: 410-550-2612

Background

Dr. Jun is a pulmonary, critical care, and sleep medicine physician. He is an expert in the diagnosis and treatment of sleep-disordered breathing, and in the care of critically ill patients in the Medical ICU. He is a member of the Sleep Fellowship Program Evaluation and Clinical Competency Committee and provides teaching to medical students and residents at Johns Hopkins.

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Titles

  • Associate Professor of Medicine

Departments / Divisions

Centers & Institutes

Education

Degrees

  • MD, University of Maryland School of Medicine (2003)

Residencies

  • Thomas Jefferson University Hospital (2020)

Fellowships

  • Johns Hopkins University School of Medicine / Pulmonary and Critical Care Medicine (2020)

Board Certifications

  • American Board of Internal Medicine / Critical Care Medicine (2015)
  • American Board of Internal Medicine / Pulmonary Disease (2013)
  • American Board of Internal Medicine / Sleep Medicine (2011)

Research & Publications

Research Summary

Dr. Jun is interested in the impact of hypoxia and sleep apnea on metabolism and cardiovascular disease.   He has studied effects of intermittent and sustained hypoxia on atherosclerosis, oxidative stress, lipid metabolism, glucose metabolism, and thermoregulation.  He is also an expert in the role of Hypoxia-Inducible Factors (HIFs) on metabolism.  Currently, Dr. Jun is examining the effect of sleep apnea on free fatty acid and glucose metabolism, using a CPAP withdrawal approach.  His long-term goal is to understand the bi-directional relationship between respiratory and metabolic health.

Lab Website: Polotsky Research Lab

Contact for Research Inquiries

Johns Hopkins Bayview
5501 Hopkins Bayview Circle Room 5A.50.
Baltimore, MD 21224 map

Activities & Honors

Honors

  • First Place, Scientific Seminar Series, Johns Hopkins Postdoctoral Association, 2009

Memberships

  • American Academy of Sleep Medicine
  • American Thoracic Society
  • Association of Critical Care Medicine

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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