Alex Clayton Irwin, AG-ACNP
NPI 1275028128ActiveIndividual· Nurse Practitioner, Acute Care· Anderson, IN
Nurse Practitioner, Acute Care (AG-ACNP) with St Vincent Medical Group Inc and 1 other group, practicing in Anderson, Indiana. Mostly services rather than prescriptions: Medicare paid $42,630 for 93 patients in 2024, with only 13 Part D claims. Neurocrine Biosciences, Inc. was the largest of 3 companies reporting payments in 2025, $120.92 in all, mostly food and beverage. Lists Ascension St Vincent Fishers as a hospital affiliation.
Overview
| NPI | 1275028128 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | AG-ACNP |
| Sole proprietor | No |
| NPI issued | Jun 23, 2018 |
| Last updated in NPPES | Nov 3, 2021 |
| Certified by provider | Nov 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | 71008268A | IN |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 93 |
|---|---|
| Services billed | 768 across 12 procedure codes |
| Paid by Medicare | $42,630 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 14 30-day fills |
|---|---|
| Total drug cost | $182.61 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- St Vincent Medical Group IncCarmel, IN · 736 clinicians
- Chestnut Health of Indiana PCKokomo, IN · 7 clinicians
Hospital affiliation
- Ascension St Vincent FishersFishers, IN
Industry payments (Open Payments)
- 2025$120.92 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $51.13 | 2 |
| Teva Pharmaceuticals USA, Inc. | $43.06 | 2 |
| Acadia Pharmaceuticals Inc | $26.73 | 1 |
What the 2025 payments were for
- Food and Beverage$120.92 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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