William James Byrne, ACNP
NPI 1558115592ActiveIndividual· Nurse Practitioner, Gerontology· Saint Louis, MO
Nurse Practitioner, Gerontology (ACNP) with Washington University and 1 other group, practicing in Saint Louis, Missouri. 38 Medicare patients in 2024, $3,702 paid; nearly all of their 57 Part D prescriptions were generic (96%). Csl Behring reported $21.40 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1558115592 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ACNP |
| Sole proprietor | No |
| NPI issued | Apr 16, 2024 |
| Last updated in NPPES | Jul 17, 2025 |
| Certified by provider | Apr 17, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 2024005875 | MO |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 38 |
|---|---|
| Services billed | 40 across 5 procedure codes |
| Paid by Medicare | $3,702 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 58 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $332.48 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Washington UniversitySaint Louis, MO · 3,029 clinicians
- Washington University Community Specialists LLCSaint Louis, MO · 105 clinicians
Industry payments (Open Payments)
- 2025$21.40 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Csl Behring | $21.40 | 1 |
What the 2025 payments were for
- Food and Beverage$21.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 117 gerontology nurse practitioners in Saint Louis · All gerontology nurse practitioners in Missouri