John S. Larson, APRN
NPI 1144783408ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Lafayette, LA
Nurse Practitioner, Psych/Mental Health (APRN) with Acadiana Area Human Services District, practicing in Lafayette, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $311,575 for 2,739 claims, against $3,352 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 6 companies reporting payments in 2025, $373.02 in all, mostly food and beverage.
Overview
| NPI | 1144783408 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Apr 12, 2019 |
| Last updated in NPPES | Apr 12, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 204085 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 31 |
|---|---|
| Services billed | 79 across 5 procedure codes |
| Paid by Medicare | $3,352 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,739 · 3,229 30-day fills |
|---|---|
| Patients | 132 |
| Total drug cost | $311,575 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Acadiana Area Human Services DistrictOpelousas, LA · 38 clinicians
Industry payments (Open Payments)
- 2025$373.02 · 14 payments from 6 companies
- 2024$800.67 · 58 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $122.18 | 4 |
| Teva Pharmaceuticals USA, Inc. | $113.04 | 3 |
| Otsuka America Pharmaceutical, Inc. | $61.99 | 3 |
| E.R. Squibb & Sons, L.L.C. | $38.07 | 2 |
| Alkermes, Inc. | $23.28 | 1 |
What the 2025 payments were for
- Food and Beverage$301.53 · 13 payments
- Education$71.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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