Jennifer K. Warren, PMHNP-BC
NPI 1356707400ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Tupelo, MS
Nurse Practitioner, Psych/Mental Health (PMHNP-BC) with The Chadwick Clinic LLC, practicing in Tupelo, Mississippi. Their prescriptions cost Medicare Part D more than their services did: $99,230 for 655 claims, against $10,188 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 14 companies reporting payments in 2025, $1,356 in all, mostly food and beverage.
Overview
| NPI | 1356707400 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP-BC |
| Sole proprietor | Yes |
| NPI issued | Jan 5, 2016 |
| Last updated in NPPES | Jul 23, 2020 |
| Certified by provider | Jul 23, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 901407 | MS |
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 (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 34 |
|---|---|
| Services billed | 197 across 8 procedure codes |
| Paid by Medicare | $10,188 |
Part D prescriptions in 2024
| Prescriptions (claims) | 655 · 996 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $99,230 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- The Chadwick Clinic LLCTupelo, MS · 2 clinicians
Industry payments (Open Payments)
- 2025$1,356 · 78 payments from 14 companies
- 2024$437.84 · 36 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $269.80 | 13 |
| Abbvie Inc. | $200.25 | 22 |
| Axsome Therapeutics, Inc. | $196.00 | 8 |
| Janssen Pharmaceuticals, Inc | $168.72 | 7 |
| Otsuka America Pharmaceutical, Inc. | $138.41 | 8 |
What the 2025 payments were for
- Food and Beverage$1,356 · 78 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 psychiatric nurse practitioners in Tupelo · All psychiatric nurse practitioners in Mississippi