- Johns Hopkins School of Medicine Faculty
About Jonathan Jun
Professional Titles
- Director, Sleep Disorders Center
- Director, Sleep Medicine Fellowship Program
Primary Academic Title
Associate Professor of Medicine
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.
Centers and Institutes
- Johns Hopkins Bayview Medical Center
- Sleep Disorders Center at The Johns Hopkins Hospital
Recent News Articles and Media Coverage
This is the weird reason you can’t lose weight, according to science, Ladders (June 16, 2020)
Metabolic Effects of Late Dinner in Healthy Volunteers—A Randomized Crossover Clinical Trial, Oxford University Press (June 2020)
Contact for Research Inquiries
5501 Hopkins Bayview Circle Room 5A.50.
Baltimore, MD 21224
Lab Website
Polotsky Research Lab - Lab Website
Research Summary
Dr. Jun's long-term goal is to understand the bi-directional relationship between respiratory and metabolic health. Studies include metabolic / cardiovascular impacts of obstructive sleep apnea, effects circadian rhythm and sleep on substrate metabolism, and interventions for obesity hypoventilation syndrome.
Honors
- Finalist, W. Leigh Thompson Excellence in Research: Clinical Research Faculty Award, Johns Hopkins, 10/1/17
- Emerging Leaders Program, American Thoracic Society, 5/20/16
- James B. Skatrud New Investigator Award, American Thoracic Society, 5/20/13
- First Place, Scientific Seminar Series, Johns Hopkins Postdoctoral Association, 1/1/09
Memberships
- American Academy of Sleep Medicine
- American Thoracic Society
- Association of Critical Care Medicine
Locations
- Johns Hopkins Outpatient Center
- 601 North Caroline Street, Floor 7, Baltimore, MD 21287
- phone: 443-287-3313
- fax: 410-367-2710
- Johns Hopkins Bayview Medical Center
- 5501 Hopkins Bayview Circle, Allergy & Asthma Center, 2nd Floor, Baltimore, MD 21224
- phone: 410-550-0571
- fax: 410-367-2710
Expertise
Education
Johns Hopkins University School of Medicine
Fellowship, Pulmonary and Critical Care Medicine, 2011Johns Hopkins University School of Medicine
Fellowship, Sleep Medicine, 2010Johns Hopkins University School of Medicine
Fellowship, Pulmonary and Critical Care Medicine, 2009Thomas Jefferson University Hospitals
Residency, Internal Medicine, 2006University of Maryland School of Medicine
Medical Education, MD, 2003Board Certifications
Critical Care Medicine
American Board of Internal Medicine, 2015Pulmonary Disease
American Board of Internal Medicine, 2013Sleep Medicine
American Board of Internal Medicine, 2011Insurance
- Aetna
- CareFirst
- Cigna
- First Health
- Geisinger Health Plan
- HealthSmart/Accel
- Humana
- Johns Hopkins Health Plans
- MultiPlan
- Pennsylvania's Preferred Health Networks (PPHN)
- Point Comfort Underwriters
- Private Healthcare Systems (PHCS)
- UnitedHealthcare
- Veteran Affairs Community Care Network (Optum-VACCN)
Ratings & Reviews
4.8 out of 5
32 ratings, 13 reviewsThe 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.
- 4 out of 5 starsReviewed on 2/4/2025
Doctor was knowledgeable, spent a surpising amount of time with me.
- 5 out of 5 starsReviewed on 1/15/2025
I've been seeing Dr. Jun for several years and have always had a good experience.
- 5 out of 5 starsReviewed on 12/18/2024
This was my first visit.He displayed great knowledge and offered new treatment options.
- 5 out of 5 starsReviewed on 12/4/2024
Dr Jun is an excellent physician. I have recommended him to members of my family.
- 5 out of 5 starsReviewed on 11/20/2024
Knowledgeable, conscientious, up on latest studies.
- 5 out of 5 starsReviewed on 11/13/2024
Dr. Jonathan Jun is a very caring physician. He offered and did quickly communicate with my PCP about his recommendations for me.
- 5 out of 5 starsReviewed on 9/25/2024
Very professional
- 5 out of 5 starsReviewed on 9/18/2024
Excellent
- 5 out of 5 starsReviewed on 9/4/2024
Highly recommended
- 5 out of 5 starsReviewed on 8/7/2024
Excellent physician very attentive to ones needs.
- 5 out of 5 starsReviewed on 6/5/2024
Getting this appointment was my biggest problem due to no availability.
- 5 out of 5 starsReviewed on 4/24/2024
Dr Jun is very good and always listens to what I have to say. He has always been on top of my sleep apnea and has always responded quickly when I sent messages. Unfortunately, I must leave his practice because my wife does not like driving that far into the city. We are transferring most of our needs to Bayview Medical.
- 5 out of 5 starsReviewed on 4/3/2024
Excellent doctor. Listens to what you have to say.