Gretchen Elizabeth Castleman, FNP, ENP
NPI 1154055036ActiveIndividual· Nurse Practitioner· Nashville, TN
Nurse Practitioner (FNP, ENP) with Southeastern Emergency Physicians LLC, practicing in Nashville, Tennessee. 38 Medicare patients in 2024, $2,942 paid; nearly all of their 97 Part D prescriptions were generic (90%). Abbvie Inc. reported $90.85 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1154055036 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP, ENP |
| Sole proprietor | No |
| NPI issued | Jul 15, 2022 |
| Last updated in NPPES | Apr 21, 2023 |
| Certified by provider | Apr 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 31263 | TN |
| Emergency Medicine | 207P00000X | 31263 | TN |
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 | 38 |
|---|---|
| Services billed | 44 across 7 procedure codes |
| Paid by Medicare | $2,942 |
Part D prescriptions in 2024
| Prescriptions (claims) | 97 · 100 30-day fills |
|---|---|
| Patients | 64 |
| Total drug cost | $1,296 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Southeastern Emergency Physicians LLCNewport, TN · 784 clinicians
Industry payments (Open Payments)
- 2025$90.85 · 5 payments from 1 company
- 2024$15.40 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $90.85 | 5 |
What the 2025 payments were for
- Food and Beverage$90.85 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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