JOHN R BROWN D.O.
NPI 1235164252
Family Medicine in Montgomery Village, MD
About John R Brown D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN R BROWN D.O. (NPI 1235164252) is an individual family medicine provider in Montgomery Village, Maryland, licensed in Georgia (058395) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1999).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John R Brown D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show John Brown reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Montgomery Village, MD 20886
- Reassigned Medicare billing, District of Columbia enrollment
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1376887844 (Maryland)
- 3,530 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20886 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Brown's NPI number?
The NPI number for John Brown is 1235164252. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is John Brown located?
John Brown practices at 18524 Office Park Dr, Montgomery Village, MD 20886. The listed phone number is (240) 221-5368.
What is John Brown's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is John Brown enrolled in Medicare?
Yes. John Brown is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Brown reassigns Medicare benefits to 2 organizations: Dr Brown-Primary Care LLC (Montgomery Village, MD) and Medstar Medical Group II LLC (Washington, DC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Brown was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John R Brown, D.O. · NPI 1235164252
Family Medicine physician in Montgomery Village, Maryland. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1235164252 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 058395 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 18524 OFFICE PARK DR, Montgomery Village, MD 20886-0585
- **Phone:** (240) 221-5368 · **Fax:** (410) 771-9301
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Dr Brown-Primary Care LLC (NPI 1306719208, Montgomery Village, MD); Medstar Medical Group II LLC (NPI 1205562816, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers New Jersey Medical School, class of 1999
## Record status
- **NPPES last updated:** March 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1235164252) · Data from the CMS NPPES public registry.