George Liwei Chen, MD
NPI 1366757775ActiveIndividual· Internal Medicine, Hematology· Houston, TX
Internal Medicine, Hematology (MD) with Physicians Referral Service, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $183,636 for 158 claims, against $50,070 paid for services in 2024. Sekisui Diagnostics LLC was the largest of 10 companies reporting payments in 2025, $1,522 in all, mostly food and beverage.
Overview
| NPI | 1366757775 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 10, 2010 |
| Last updated in NPPES | Mar 1, 2023 |
| Certified by provider | Mar 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | K9752 | TX |
| Internal Medicine, Hematology | 207RH0000X | 257976 | NY |
| Internal Medicine, Medical Oncology | 207RX0202X | 257976 | NY |
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 - Hematology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 148 |
|---|---|
| Services billed | 635 across 26 procedure codes |
| Paid by Medicare | $50,070 |
Part D prescriptions in 2024
| Prescriptions (claims) | 158 · 173 30-day fills |
|---|---|
| Patients | 43 |
| Total drug cost | $183,636 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Hematology |
| Telehealth | Offers telehealth |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$1,522 · 29 payments from 10 companies
- 2024$574.97 · 21 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sekisui Diagnostics LLC | $300.00 | 15 |
| Astellas Pharma US Inc | $295.37 | 3 |
| Abbvie Inc. | $274.97 | 2 |
| Sanofi-Aventis U.S. LLC | $146.45 | 1 |
| Incyte Corporation | $138.57 | 2 |
What the 2025 payments were for
- Food and Beverage$1,222 · 14 payments
- Gift$300.00 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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