Chen Chao, MD
NPI 1780200816ActiveIndividual· Internal Medicine, Rheumatology· Amarillo, TX
Internal Medicine, Rheumatology (MD) with Allergy Arts LLP, practicing in Amarillo, Texas. Part D covered 637 prescriptions written in 2024, 86% of them generic. Amgen Inc. was the largest of 7 companies reporting payments in 2025, $569.67 in all, mostly food and beverage. Lists Bsa Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1780200816 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 24, 2020 |
| Last updated in NPPES | Aug 3, 2025 |
| Certified by provider | Aug 3, 2025 |
| Reactivated | Feb 2, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | V4892 | 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 - Rheumatology (TX) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 637 · 1,131 30-day fills |
|---|---|
| Patients | 98 |
| Total drug cost | $673,686 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Rheumatology |
Medical group
- Allergy Arts LLPAmarillo, TX · 4 clinicians
Hospital affiliations
- Bsa HospitalAmarillo, TX
- Northwest Texas HospitalAmarillo, TX
Industry payments (Open Payments)
- 2025$569.67 · 24 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $207.83 | 15 |
| Astrazeneca Pharmaceuticals LP | $139.15 | 4 |
| Alexion Pharmaceuticals, Inc. | $125.00 | 1 |
| Csl Behring | $32.28 | 1 |
| Tonix Medicines, Inc. | $30.57 | 1 |
What the 2025 payments were for
- Food and Beverage$569.67 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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