Quick answers
- Which hospitals does John Jun work at?
- Medicare's official clinician data lists John Jun at 3 hospitals: Umd Rehabilitation & Orthopaedic Institute, University of Maryland Medical Center and University of MD Medical Center Midtown Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Jun see patients?
- Medicare's clinician data lists 1 practice location in Baltimore, MD. Call before your visit to confirm the address.
- What is John Jun's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Interventional Pain Management.
- Does John Jun accept Medicare assignment?
- Yes. Medicare's clinician data says John Jun accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John Jun?
- (667) 214-1616, as listed in official Medicare / NPI Registry data.
- What is John Jun's NPI number?
- 1639352628. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Jun works
Medicare's Facility Affiliation Data lists John Jun at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Umd Rehabilitation & Orthopaedic InstituteBaltimore, MD · Acute Care Hospital · CCN 210058
- University of Maryland Medical CenterBaltimore, MD · Acute Care Hospital · CCN 210002
- University of MD Medical Center Midtown CampusBaltimore, MD · Acute Care Hospital · CCN 210038
Practice locations
Addresses where John Jun is enrolled with Medicare (CMS data updated 2026-10-02).
- 827 Linden AveBaltimore, MD 21201 (667) 214‑1616
Group practices
Medicare enrollment lists John Jun as a member of this group (CMS data updated 2026-10-02).
- University of Maryland Anesthesiology Associates PA143 clinicians in the group
Specialties
- Anesthesiologyprimary
- Interventional Pain Managementalso
Other anesthesiologists in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639352628 |
| 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