Margarita Villarreal Barlow, DNP,ANP-BC, PMHNP-BC
NPI 1154544724ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Clarksville, TN
Nurse Practitioner, Psych/Mental Health (DNP,ANP-BC, PMHNP-BC) in Clarksville, Tennessee, licensed in TN and KY, with an NPI issued in April 2007. Their prescriptions cost Medicare Part D more than their services did: $138,725 for 450 claims, against $34,631 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 8 companies reporting payments in 2025, $459.65 in all, mostly food and beverage.
Overview
| NPI | 1154544724 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP,ANP-BC, PMHNP-BC |
| Sole proprietor | No |
| NPI issued | Apr 11, 2007 |
| Last updated in NPPES | Jan 24, 2024 |
| Certified by provider | Jan 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 13728 | TN |
| Registered Nurse | 163W00000X | 125356 | TN |
| Nurse Practitioner, Adult Health | 363LA2200X | 13728 | TN |
| Nurse Practitioner, Adult Health | 363LA2200X | 3007314 | KY |
| Nurse Practitioner, Psych/Mental Health | 363LP0808X | 3007314 | KY |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 55 |
|---|---|
| Services billed | 546 across 6 procedure codes |
| Paid by Medicare | $34,631 |
Part D prescriptions in 2024
| Prescriptions (claims) | 450 · 779 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $138,725 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$459.65 · 15 payments from 8 companies
- 2024$263.33 · 9 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $161.43 | 6 |
| Teva Pharmaceuticals USA, Inc. | $139.79 | 3 |
| Abbvie Inc. | $44.72 | 1 |
| Neurocrine Biosciences, Inc. | $30.83 | 1 |
| Alkermes, Inc. | $27.53 | 1 |
What the 2025 payments were for
- Food and Beverage$348.16 · 14 payments
- Education$111.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 63 psychiatric nurse practitioners in Clarksville · All psychiatric nurse practitioners in Tennessee