Quick answers
- Where does John R. Brown see patients?
- Medicare's clinician data lists 2 practice locations, including Montgomery Village, MD and Ellicott City, MD. Call before your visit to confirm the address.
- What is John R. Brown's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does John R. Brown accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Brown 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.
- Does John R. Brown offer telehealth?
- Medicare's clinician data says John R. Brown offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John R. Brown?
- (571) 243-2607, as listed in official Medicare / NPI Registry data.
- What is John R. Brown's NPI number?
- 1235164252. 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 John R. Brown is enrolled with Medicare (CMS data updated 2026-10-02).
- 18524 Office Park DrMontgomery Village, MD 20886 (571) 243‑2607
- 9501 Old Annapolis Rd, Suite 220Ellicott City, MD 21042 (410) 772‑2000
Group practices
Medicare enrollment lists John R. Brown as a member of this group (CMS data updated 2026-10-02).
- MedStar Medical Group II LLC3,767 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1235164252 |
| 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