Marisa Johnson, MD
NPI 1083615520ActiveIndividual· Internal Medicine, Nephrology· Baton Rouge, LA
Internal Medicine, Nephrology (MD) in Baton Rouge, Louisiana, trained at University of Arkansas College of Medicine (class of 1997). Mostly services rather than prescriptions: Medicare paid $24,323 for 118 patients in 2024, with only 22 Part D claims. Medline Industries LP reported $21.17 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1083615520 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 9, 2005 |
| Last updated in NPPES | Oct 11, 2026 |
| Certified by provider | Oct 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD.023908 | LA |
| Internal Medicine, Nephrology | 207RN0300X | L6967 | TX |
| Internal Medicine, Nephrology | 207RN0300X | 023908 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (AL); Practitioner - Nephrology (GA); Practitioner - Nephrology (KY); Practitioner - Nephrology (LA); Practitioner - Nephrology (MI); Practitioner - Nephrology (MS); Practitioner - Nephrology (OH); Practitioner - Nephrology (TN); Practitioner - Nephrology (WV); Practitioner - Nephrology (WY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 118 |
|---|---|
| Services billed | 435 across 8 procedure codes |
| Paid by Medicare | $24,323 |
Part D prescriptions in 2024
| Prescriptions (claims) | 22 · 48 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $2,135 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Nephrology |
Industry payments (Open Payments)
- 2025$21.17 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medline Industries LP | $21.17 | 1 |
What the 2025 payments were for
- Food and Beverage$21.17 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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