Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Marisa Johnson, MD

Individual provider Nephrology Physician · NPI 1083615520

Marisa Johnson, MD practises Nephrology in Baton Rouge, Louisiana. Graduated from University of Arkansas College of Medicine in 1997, 29 years ago. Practices as a sole proprietor, works from 2 locations and accepts Medicare assignment. Licensed in Louisiana and Texas.

Years since qualifying
29
Trained at
University of Arkansas College of Medicine
Licensed in
LA, TX
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2900 Westfork Dr Ste 401
Baton Rouge, LA 70827-0004
Phone: (855) 212-2273
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1303 Line Ave, Shreveport, LA 71101-4628 — (318) 221-2707

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence MD.023908 (LA)
Nephrology Physician Taxonomy 207RN0300X · Licence L6967 (TX)
Nephrology Physician Taxonomy 207RN0300X · Licence 023908 (LA)

Record details

NPI number1083615520
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 9, 2005
Last updated in NPPESOctober 11, 2026
Certification dateOctober 11, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolUNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE
Graduated 1997 (29 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients118
Services billed 435 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $21 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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