Ambesi Ngwa
NPI 1639582174ActiveIndividual· Internal Medicine· Tyler, TX
Internal Medicine with North Texas Physician Services, PLLC, practicing in Tyler, Texas. In 2024 Medicare paid $169,023 for 320 patients, and Part D covered 447 of their prescriptions, 88% of them generic. Haemonetics Corporation was the largest of 2 companies reporting payments in 2025, $42.28 in all, mostly food and beverage. Lists Christus Mother Frances Hospital as a hospital affiliation.
Overview
| NPI | 1639582174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jun 3, 2014 |
| Last updated in NPPES | Feb 21, 2024 |
| Certified by provider | Feb 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | P9236 | TX |
| Hospitalist | 208M00000X | P9236 | 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 - Hospitalist (TX); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 320 |
|---|---|
| Services billed | 1,915 across 11 procedure codes |
| Paid by Medicare | $169,023 |
Part D prescriptions in 2024
| Prescriptions (claims) | 447 · 509 30-day fills |
|---|---|
| Patients | 138 |
| Total drug cost | $26,325 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- North Texas Physician Services, PLLCLongview, TX · 238 clinicians
Hospital affiliation
- Christus Mother Frances HospitalTyler, TX
Industry payments (Open Payments)
- 2025$42.28 · 2 payments from 2 companies
- 2024$130.74 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Haemonetics Corporation | $24.33 | 1 |
| E.R. Squibb & Sons, L.L.C. | $17.95 | 1 |
What the 2025 payments were for
- Food and Beverage$42.28 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 173 internal medicine physicians in Tyler · All internal medicine physicians in Texas