Tom T. Thayil, M.D.
NPI 1972541381ActiveIndividual· Internal Medicine· Dallas, TX
Internal Medicine (M.D.) in Dallas, Texas, trained at University of Texas Medical Branch at Galveston (class of 2000). In 2024 Medicare paid $94,633 for 528 patients, and Part D covered 106 of their prescriptions, 88% of them generic. Alexion Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $86.17 in all, mostly food and beverage.
Overview
| NPI | 1972541381 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 4, 2006 |
| Last updated in NPPES | Jul 14, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | L6668 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 528 |
|---|---|
| Services billed | 1,143 across 16 procedure codes |
| Paid by Medicare | $94,633 |
Part D prescriptions in 2024
| Prescriptions (claims) | 106 · 108 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $8,829 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
Medical groups
- Hospitalist Medicine Physicians of Texas PLLCHumble, TX · 686 clinicians
- MD on Call PAIrving, TX · 11 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$86.17 · 2 payments from 2 companies
- 2024$192.27 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $53.05 | 1 |
| Abbvie Inc. | $33.12 | 1 |
What the 2025 payments were for
- Food and Beverage$86.17 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,234 internal medicine physicians in Dallas · All internal medicine physicians in Texas