Maggie Brennan O'Block, RN, APN
NPI 1295287365ActiveIndividual· Nurse Practitioner, Gerontology· Nashville, TN
Nurse Practitioner, Gerontology (RN, APN) in Nashville, Tennessee, trained at Vanderbilt University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $343,490 for 1,304 claims, against $55,266 paid for services in 2024. Photocure Inc reported $149.19 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1295287365 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN, APN |
| Sole proprietor | No |
| NPI issued | Oct 25, 2016 |
| Last updated in NPPES | Dec 10, 2023 |
| Certified by provider | Dec 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 21525 | TN |
| Nurse Practitioner | 363L00000X | APN0000021525 | TN |
| Nurse Practitioner, Women's Health | 363LW0102X | 21525 | 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 | 680 |
|---|---|
| Services billed | 1,198 across 23 procedure codes |
| Paid by Medicare | $55,266 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,304 · 3,016 30-day fills |
|---|---|
| Patients | 406 |
| Total drug cost | $343,490 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Vanderbilt University Medical CenterNashville, TN · 3,567 clinicians
Hospital affiliations
- Vanderbilt University Medical CenterNashville, TN
- Vanderbilt Wilson County HospitalLebanon, TN
Industry payments (Open Payments)
- 2025$149.19 · 1 payment from 1 company
- 2024$380.02 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Photocure Inc | $149.19 | 1 |
What the 2025 payments were for
- Food and Beverage$149.19 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 253 gerontology nurse practitioners in Nashville · All gerontology nurse practitioners in Tennessee