Quick answers
- Which hospitals does John N. Shumar work at?
- Medicare's official clinician data lists John N. Shumar at 1 hospital: Inova Fairfax Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John N. Shumar see patients?
- Medicare's clinician data lists 5 practice locations, including Laurel, MD, Falls Church, VA and Leesburg, VA. Call before your visit to confirm the address.
- What is John N. Shumar's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Internal Medicine.
- Does John N. Shumar accept Medicare assignment?
- Yes. Medicare's clinician data says John N. Shumar 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 N. Shumar?
- (301) 604-5254, as listed in official Medicare / NPI Registry data.
- What is John N. Shumar's NPI number?
- 1407389125. 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 N. Shumar works
Medicare's Facility Affiliation Data lists John N. Shumar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · CCN 490063
Practice locations
Addresses where John N. Shumar is enrolled with Medicare (CMS data updated 2026-10-02).
- 14207 Park Ctr Dr, Suite 102Laurel, MD 20707 (301) 604‑5254
- 3300 Gallows RdFalls Church, VA 22042 (703) 776‑4001
- 44045 Rivderside PkwyLeesburg, VA 20176 (703) 771‑2960
- 8503 Arlington BlvdFairfax, VA 22031 (703) 970‑2670
- 8600 Old Georgetown RdBethesda, MD 20814
Group practices
Medicare enrollment lists John N. Shumar as a member of these groups (CMS data updated 2026-10-02).
- Inova Health Care Services1,817 clinicians in the group
- Johns Hopkins Community Physicians, Inc763 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in Maryland →
Other critical care doctors in Laurel
Clinicians with the same Medicare primary specialty in Laurel, MD — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lincoln Mem Univ, Debusk Col Of Osteopathic Med |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407389125 |
| 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