Gregory Marshall, FNP-C
NPI 1528555216ActiveIndividual· Pain Medicine, Interventional Pain Medicine· Evansville, IN
Pain Medicine, Interventional Pain Medicine (FNP-C) in Evansville, Indiana, trained at Indiana University School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $118,912 for 3,684 claims, against $35,906 paid for services in 2024. Boston Scientific Corporation was the largest of 4 companies reporting payments in 2025, $147.04 in all, mostly food and beverage.
Overview
| NPI | 1528555216 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Apr 18, 2018 |
| Last updated in NPPES | Dec 1, 2025 |
| Certified by provider | Dec 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pain Medicine, Interventional Pain Medicine Primary | 208VP0014X | 71007920A | IN |
| Nurse Practitioner, Family | 363LF0000X | 28207276A | IN |
| Nurse Practitioner | 363L00000X | 28207276A | IN |
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 - Nurse Practitioner (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 549 across 4 procedure codes |
| Paid by Medicare | $35,906 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,684 · 3,958 30-day fills |
|---|---|
| Patients | 374 |
| Total drug cost | $118,912 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Shadeland Anesthesia and Pain Associates IncIndianapolis, IN · 41 clinicians
Industry payments (Open Payments)
- 2025$147.04 · 7 payments from 4 companies
- 2024$93.60 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $71.83 | 4 |
| Mml US, Inc. | $29.04 | 1 |
| Lundbeck LLC | $26.85 | 1 |
| Valinor Pharma, LLC | $19.32 | 1 |
What the 2025 payments were for
- Food and Beverage$147.04 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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