Hussein Abdul-Hassan Tawbi, MD
NPI 1982729422ActiveIndividual· Internal Medicine· Houston, TX
Internal Medicine (MD) with Physicians Referral Service, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $1,440,975 for 216 claims, against $40,572 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 5 companies reporting payments in 2025, $47,017 in all, mostly consulting fees.
Overview
| NPI | 1982729422 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 21, 2007 |
| Last updated in NPPES | Feb 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | Q6795 | TX |
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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 383 across 17 procedure codes |
| Paid by Medicare | $40,572 |
Part D prescriptions in 2024
| Prescriptions (claims) | 216 · 236 30-day fills |
|---|---|
| Patients | 49 |
| Total drug cost | $1,440,975 |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hematology, Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$47,017 · 34 payments from 5 companies
- 2024$61,447 · 37 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $28,157 | 14 |
| Regeneron Pharmaceuticals, Inc. | $11,554 | 14 |
| Immunocore Limited | $4,738 | 2 |
| Pfizer Inc. | $2,310 | 1 |
| E.R. Squibb & Sons, L.L.C. | $258.34 | 3 |
What the 2025 payments were for
- Consulting Fee$31,250 · 15 payments
- Travel and Lodging$11,238 · 9 payments
- Honoraria$4,000 · 1 payment
- Food and Beverage$529.99 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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