Quick answers
- Where does Mark J. Rosenberg see patients?
- Medicare's clinician data lists 2 practice locations, including Leesburg, VA and Alexandria, VA. Call before your visit to confirm the address.
- What is Mark J. Rosenberg's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark J. Rosenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Rosenberg 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 Mark J. Rosenberg?
- (703) 840-1396, as listed in official Medicare / NPI Registry data.
- What is Mark J. Rosenberg's NPI number?
- 1356379564. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mark J. Rosenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 601 Potomac Station DrLeesburg, VA 20176 (703) 840‑1396
- 6311 Richmond HwyAlexandria, VA 22306 (703) 647‑6087
Group practices
Medicare enrollment lists Mark J. Rosenberg as a member of this group (CMS data updated 2026-10-02).
- Patient First Richmond Medical Group PLLC289 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Leesburg
Clinicians with the same Medicare primary specialty in Leesburg, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356379564 |
| 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
- 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