Mary Byrne Welch, RN FNP, AOCN
NPI 1417944372ActiveIndividual· Nurse Practitioner· Long Beach, CA
Nurse Practitioner (RN FNP, AOCN) in Long Beach, California, licensed in CA, with an NPI issued in October 2005. Part D covered 671 prescriptions written in 2024, 86% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 22 companies reporting payments in 2025, $2,658 in all, mostly food and beverage.
Overview
| NPI | 1417944372 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN FNP, AOCN |
| Sole proprietor | Yes |
| NPI issued | Oct 5, 2005 |
| Last updated in NPPES | Mar 2, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | RN479278 | CA |
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 (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 671 · 993 30-day fills |
|---|---|
| Patients | 128 |
| Total drug cost | $1,141,621 |
| Generic share | 86% of claims |
Industry payments (Open Payments)
- 2025$2,658 · 66 payments from 22 companies
- 2024$3,204 · 46 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $458.66 | 12 |
| Merck Sharp & Dohme LLC | $391.64 | 14 |
| Pfizer Inc. | $208.67 | 6 |
| Gilead Sciences, Inc. | $173.30 | 3 |
| Daiichi Sankyo Inc. | $146.64 | 2 |
What the 2025 payments were for
- Food and Beverage$2,658 · 66 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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