Thomas Michael Leath, M. D.
NPI 1497767420ActiveIndividual· Allergy & Immunology· Austin, TX
Allergy & Immunology (M. D.) in Austin, Texas, trained at University of Texas Medical Branch at Galveston (class of 2000). In 2024 Medicare paid $162,369 for 227 patients, and Part D covered 254 of their prescriptions, 76% of them generic. Glaxosmithkline, LLC. was the largest of 24 companies reporting payments in 2025, $1,520 in all, mostly food and beverage.
Overview
| NPI | 1497767420 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M. D. |
| Sole proprietor | No |
| NPI issued | Aug 11, 2006 |
| Last updated in NPPES | Oct 31, 2023 |
| Certified by provider | Oct 31, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | M4273 | TX |
| Pediatrics, Pediatric Allergy/Immunology | 2080P0201X | M4273 | TX |
| Allergy & Immunology, Allergy | 207KA0200X | M4273 | TX |
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 - Allergy/Immunology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 227 |
|---|---|
| Services billed | 7,939 across 26 procedure codes |
| Paid by Medicare | $162,369 |
Part D prescriptions in 2024
| Prescriptions (claims) | 254 · 384 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $39,062 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Allergy Partners of Texas IncAustin, TX · 22 clinicians
Industry payments (Open Payments)
- 2025$1,520 · 85 payments from 24 companies
- 2024$1,691 · 86 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $216.87 | 16 |
| Astrazeneca Pharmaceuticals LP | $206.30 | 17 |
| Regeneron Healthcare Solutions, Inc. | $165.36 | 12 |
| Novartis Pharmaceuticals Corporation | $145.91 | 6 |
| Genzyme Corporation | $92.79 | 3 |
What the 2025 payments were for
- Food and Beverage$1,486 · 84 payments
- Education$34.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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