MARISA JOHNSON MD
NPI 1083615520
Internal Medicine - Nephrology in Baton Rouge, LA
About Marisa Johnson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISA JOHNSON MD (NPI 1083615520) is an individual nephrology provider in Baton Rouge, Louisiana, licensed in Louisiana (MD.023908) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS, maintains a secondary practice location in Shreveport, and is a graduate of University Of Arkansas College Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
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
Marisa Johnson Md 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 Marisa Johnson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brentwood, TN 37027
- Reassigned Medicare billing, Alabama, Georgia, Kentucky, Louisiana, Michigan, Mississippi, Ohio, Tennessee and West Virginia enrollments
- Also billed through NPI 1255930228 (Georgia), NPI 1134739089 (West Virginia), NPI 1659987436 (Louisiana), NPI 1326655986 (Mississippi)
- 89 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 3
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 70827 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 70827
BATON ROUGE, LA 70827
BATON ROUGE, LA 70827
BATON ROUGE, LA 70827
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 Marisa Johnson's NPI number?
The NPI number for Marisa Johnson is 1083615520. It was assigned to this individual provider in the NPPES registry on August 9, 2005.
Where is Marisa Johnson located?
Marisa Johnson practices at 2900 Westfork Dr Ste 401, Baton Rouge, LA 70827. The listed phone number is (855) 212-2273.
What is Marisa Johnson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Marisa Johnson enrolled in Medicare?
Yes. Marisa Johnson 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 Marisa Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marisa Johnson reassigns Medicare benefits to Monogram Health Professional Services PC (Brentwood, TN). 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 Marisa Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marisa Johnson accept?
Health plans from CareSource and HMO Louisiana list Marisa Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marisa Johnson was last updated on October 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.
# Marisa Johnson, MD · NPI 1083615520
Nephrology physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since August 9, 2005.
## Identity
- **NPI:** 1083615520 (Entity type: Individual)
- **Enumerated:** August 9, 2005
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** MD.023908 (Louisiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2900 WESTFORK DR STE 401, Baton Rouge, LA 70827-0004
- **Phone:** (855) 212-2273
## 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:** Monogram Health Professional Services PC (NPI 1336748300, Brentwood, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Arkansas College Of Medicine, class of 1997
## Record status
- **NPPES last updated:** October 11, 2026
- **Other identifiers:** Medicaid 146986802 (TX); Medicaid 1487481 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1083615520) · Data from the CMS NPPES public registry.