Usman Zafar, MD
NPI 1558329235ActiveIndividual· Internal Medicine· Allen, TX
Internal Medicine (MD) with Primary Health Physicians PLLC, practicing in Allen, Texas. 31 Medicare patients in 2024, $2,971 paid; nearly all of their 175 Part D prescriptions were generic (94%). Collegium Pharmaceutical, Inc. reported $20.77 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1558329235 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 3, 2006 |
| Last updated in NPPES | Jan 6, 2022 |
| Certified by provider | Jan 6, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | J7254 | TX |
| Family Medicine | 207Q00000X | J7254 | 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 | 31 |
|---|---|
| Services billed | 64 across 23 procedure codes |
| Paid by Medicare | $2,971 |
Part D prescriptions in 2024
| Prescriptions (claims) | 175 · 179 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $2,907 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
Medical group
- Primary Health Physicians PLLCKeller, TX · 239 clinicians
Industry payments (Open Payments)
- 2025$20.77 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Collegium Pharmaceutical, Inc. | $20.77 | 1 |
What the 2025 payments were for
- Food and Beverage$20.77 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 59 internal medicine physicians in Allen · All internal medicine physicians in Texas