DR. MARK RUSSELL BROWN DO
NPI 1972250736
Internal Medicine in Travis Afb, CA
About Dr. Mark Russell Brown Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK RUSSELL BROWN DO (NPI 1972250736) is an individual internal medicine provider in Travis Afb, California, licensed in California (20A24048) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa (2022).
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
Dr. Mark Russell Brown Do 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 Reassignment
Medicare enrollment records show Mark Brown reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94535 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
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 Mark Brown's NPI number?
The NPI number for Mark Brown is 1972250736. It was assigned to this individual provider in the NPPES registry on March 2, 2022.
Where is Mark Brown located?
Mark Brown practices at 60 Mdg/Sggx 101 Bodin Circle, Travis Afb, CA 94535. The listed phone number is (707) 423-7342.
What is Mark Brown's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mark Brown enrolled in Medicare?
Yes. Mark 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 organization bills Medicare for Mark Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Brown reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, CA). The 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 Mark 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 Mark Brown was last updated on December 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Mark Russell Brown, DO · NPI 1972250736
Internal Medicine physician in Travis Afb, California. Individual provider, active in the CMS NPPES registry since March 2, 2022.
## Identity
- **NPI:** 1972250736 (Entity type: Individual)
- **Enumerated:** March 2, 2022
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 20A24048 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 60 MDG/SGGX, 101 BODIN CIRCLE, Travis Afb, CA 94535-1809
- **Phone:** (707) 423-7342
## 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:** Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa, class of 2022
## Record status
- **NPPES last updated:** December 17, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1972250736) · Data from the CMS NPPES public registry.