JOHN E MARSHALL MD
NPI 1811918568
Internal Medicine - Rheumatology in Baton Rouge, LA
About John E Marshall Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN E MARSHALL MD (NPI 1811918568) is an individual rheumatology provider in Baton Rouge, Louisiana, licensed in Louisiana (12924R) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John E Marshall Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Marshall reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baton Rouge, LA 70808
- Reassigned Medicare billing, Louisiana enrollment
- 548 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 70808 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
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 Marshall's NPI number?
The NPI number for John Marshall is 1811918568. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is John Marshall located?
John Marshall practices at 7373 Perkins Rd, Baton Rouge, LA 70808. The listed phone number is (225) 769-4044.
What is John Marshall's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is John Marshall enrolled in Medicare?
Yes. John Marshall is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Marshall's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Marshall reassigns Medicare benefits to Lsuhn Billing LLC (Baton Rouge, LA). 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 John Marshall'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 Marshall was last updated on February 4, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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 E Marshall, MD · NPI 1811918568
Rheumatology physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since July 21, 2006.
## Identity
- **NPI:** 1811918568 (Entity type: Individual)
- **Enumerated:** July 21, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 12924R (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 7373 PERKINS RD, Baton Rouge, LA 70808-4326
- **Phone:** (225) 769-4044
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Lsuhn Billing LLC (NPI 1306247556, Baton Rouge, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 4, 2011
- **Other identifiers:** Medicare UPIN D47653 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1811918568) · Data from the CMS NPPES public registry.