Quick answers
- Which hospitals does Jonathan Jun work at?
- Medicare's official clinician data lists Jonathan Jun at 2 hospitals: Johns Hopkins Bayview Medical Center and The Johns Hopkins Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan Jun see patients?
- Medicare's clinician data lists 8 practice locations, including Baltimore, MD and Washington, DC. Call before your visit to confirm the address.
- What is Jonathan Jun's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists) and Internal Medicine.
- Does Jonathan Jun accept Medicare assignment?
- Medicare's clinician data says Jonathan Jun may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Jonathan Jun offer telehealth?
- Medicare's clinician data says Jonathan Jun offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jonathan Jun?
- (410) 955-5000, as listed in official Medicare / NPI Registry data.
- What is Jonathan Jun's NPI number?
- 1083751846. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan Jun works
Medicare's Facility Affiliation Data lists Jonathan Jun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Johns Hopkins Bayview Medical CenterBaltimore, MD · Acute Care Hospital · CCN 210029
- The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · CCN 210009
Practice locations
Addresses where Jonathan Jun is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 1800 Orleans StBaltimore, MD 21287 (410) 955‑5000
- 4940 Eastern AveBaltimore, MD 21224
- 4940 Eastern Ave, Bayview Medicial CenterBaltimore, MD 21224 (410) 550‑0100
- 5255 Loughboro Road NWWashington, DC 20016 (202) 364‑7676
- 5255 Loughboro Road NW, Sibley Memorial HospitalWashington, DC 20016 (202) 660‑6500
Group practices
Medicare enrollment lists Jonathan Jun as a member of these groups (CMS data updated 2026-10-02).
- Johns Hopkins University2,909 clinicians in the group
- Johns Hopkins University197 clinicians in the group
Specialties
Other pulmonologists in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1083751846 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians