Thomas M. Irwin Jr., MD
NPI 1629172358ActiveIndividual· Otolaryngology· Marrero, LA
Otolaryngology (MD) in Marrero, Louisiana, trained at Tulane University School of Medicine (class of 1965). 222 Medicare patients in 2024, $23,547 paid; nearly all of their 906 Part D prescriptions were generic (96%). Glaxosmithkline, LLC. was the largest of 4 companies reporting payments in 2025, $122.58 in all, mostly food and beverage.
Overview
| NPI | 1629172358 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 12, 2006 |
| Last updated in NPPES | May 29, 2025 |
| Certified by provider | May 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | 010120 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Otolaryngology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 222 |
|---|---|
| Services billed | 845 across 26 procedure codes |
| Paid by Medicare | $23,547 |
Part D prescriptions in 2024
| Prescriptions (claims) | 906 · 1,104 30-day fills |
|---|---|
| Patients | 285 |
| Total drug cost | $26,050 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1965 |
| Medicare specialty | Otolaryngology |
Medical group
- David L. Schneider, MD APMCMarrero, LA · 9 clinicians
Industry payments (Open Payments)
- 2025$122.58 · 7 payments from 4 companies
- 2024$240.50 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $50.40 | 3 |
| Ars Pharmaceuticals Operations, Inc. | $26.55 | 1 |
| Regeneron Healthcare Solutions, Inc. | $25.45 | 1 |
| Phathom Pharmaceuticals, Inc. | $20.18 | 2 |
What the 2025 payments were for
- Food and Beverage$122.58 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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