Hannah E. McCallum, ACNP
NPI 1295884617ActiveIndividual· Nurse Practitioner, Acute Care· Hattiesburg, MS
Nurse Practitioner, Acute Care (ACNP) with Hattiesburg Clinic PA, practicing in Hattiesburg, Mississippi. Their prescriptions cost Medicare Part D more than their services did: $204,530 for 914 claims, against $67,435 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 5 companies reporting payments in 2025, $208.99 in all, mostly food and beverage. Lists Forrest General Hospital as a hospital affiliation.
Overview
| NPI | 1295884617 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ACNP |
| Sole proprietor | No |
| NPI issued | Jan 9, 2007 |
| Last updated in NPPES | Feb 10, 2023 |
| Certified by provider | Feb 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | R821702 | 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 | 683 |
|---|---|
| Services billed | 2,137 across 7 procedure codes |
| Paid by Medicare | $67,435 |
Part D prescriptions in 2024
| Prescriptions (claims) | 914 · 1,462 30-day fills |
|---|---|
| Patients | 206 |
| Total drug cost | $204,530 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Hattiesburg Clinic PAHattiesburg, MS · 537 clinicians
Hospital affiliation
- Forrest General HospitalHattiesburg, MS
Industry payments (Open Payments)
- 2025$208.99 · 12 payments from 5 companies
- 2024$483.40 · 25 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $93.09 | 5 |
| E.R. Squibb & Sons, L.L.C. | $45.21 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $33.06 | 2 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $19.25 | 1 |
| Alnylam Pharmaceuticals Inc. | $18.38 | 1 |
What the 2025 payments were for
- Food and Beverage$208.99 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 acute care nurse practitioners in Hattiesburg · All acute care nurse practitioners in Mississippi