Barbara Marianne Nefstead, NURSE PRACTITIONER
NPI 1568700409ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Amarillo, TX
Nurse Practitioner, Psych/Mental Health (NURSE PRACTITIONER) in Amarillo, Texas, trained at University of South Alabama College of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $634,727 for 3,599 claims, against $27,633 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 15 companies reporting payments in 2025, $3,864 in all, mostly food and beverage.
Overview
| NPI | 1568700409 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NURSE PRACTITIONER |
| Sole proprietor | Yes |
| NPI issued | Jan 28, 2013 |
| Last updated in NPPES | Oct 8, 2025 |
| Certified by provider | Oct 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 681099 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 118 |
|---|---|
| Services billed | 448 across 2 procedure codes |
| Paid by Medicare | $27,633 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,599 · 4,498 30-day fills |
|---|---|
| Patients | 187 |
| Total drug cost | $634,727 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of South Alabama College of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Murali Veeramachaneni, M.D, P.AAmarillo, TX · 2 clinicians
Industry payments (Open Payments)
- 2025$3,864 · 123 payments from 15 companies
- 2024$2,794 · 81 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $669.19 | 12 |
| Neurocrine Biosciences, Inc. | $632.56 | 23 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $403.49 | 12 |
| Otsuka America Pharmaceutical, Inc. | $381.00 | 9 |
| Teva Pharmaceuticals USA, Inc. | $299.60 | 19 |
What the 2025 payments were for
- Food and Beverage$3,864 · 123 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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