Mercedez M. Marvig, APRN, CNP
NPI 1386486975ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Fargo, ND
Nurse Practitioner, Psych/Mental Health (APRN, CNP) with Nystrom and Associates Ltd, practicing in Fargo, North Dakota. Their prescriptions cost Medicare Part D more than their services did: $5,411 for 141 claims, against $1,793 paid for services in 2024. Vanda Pharmaceuticals Inc. reported $18.77 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1386486975 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN, CNP |
| Sole proprietor | No |
| NPI issued | Jun 12, 2024 |
| Last updated in NPPES | Nov 18, 2025 |
| Certified by provider | Nov 18, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | R46554 | ND |
| Nurse Practitioner, Psych/Mental Health | 363LP0808X | 12058 | MN |
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 (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 21 across 9 procedure codes |
| Paid by Medicare | $1,793 |
Part D prescriptions in 2024
| Prescriptions (claims) | 141 · 175 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $5,411 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2024 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Nystrom and Associates LtdBaxter, MN · 590 clinicians
Industry payments (Open Payments)
- 2025$18.77 · 1 payment from 1 company
- 2024$86.80 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $18.77 | 1 |
What the 2025 payments were for
- Food and Beverage$18.77 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 45 psychiatric nurse practitioners in Fargo · All psychiatric nurse practitioners in North Dakota