Muazer Ahmed, M.D
NPI 1891113577ActiveIndividual· Internal Medicine, Nephrology· Texarkana, TX
Internal Medicine, Nephrology (M.D) with Christus Trinity Clinic Texas and 1 other group, practicing in Texarkana, Texas. In 2024 Medicare paid $209,897 for 442 patients, and Part D covered 982 of their prescriptions, 88% of them generic. Calliditas Therapeutics US Inc. was the largest of 10 companies reporting payments in 2025, $479.74 in all, mostly food and beverage. Lists Christus St Michael Health System and 1 other hospital as hospital affiliations.
Overview
| NPI | 1891113577 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Mar 31, 2014 |
| Last updated in NPPES | Oct 20, 2026 |
| Certified by provider | Oct 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | S3105 | TX |
| Internal Medicine, Nephrology | 207RN0300X | E12500 | AR |
| Internal Medicine, Nephrology | 207RN0300X | 35125 | OK |
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 - Nephrology (OK); Practitioner - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 442 |
|---|---|
| Services billed | 2,985 across 47 procedure codes |
| Paid by Medicare | $209,897 |
Part D prescriptions in 2024
| Prescriptions (claims) | 982 · 2,308 30-day fills |
|---|---|
| Patients | 194 |
| Total drug cost | $119,846 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Nephrology |
Medical groups
- Christus Trinity Clinic TexasTyler, TX · 1,540 clinicians
- Collom and Carney Clinic AssociationTexarkana, TX · 51 clinicians
Hospital affiliations
- Christus St Michael Health SystemTexarkana, TX
- McCurtain Memorial HospitalIdabel, OK
Other facilities
- Davita Hempstead County DialysisDialysis facility · Hope, AR
- Davita Miller County DialysisDialysis facility · Texarkana, AR
- Davita Southwest Arkansas DialysisDialysis facility · Magnolia, AR
- Davita Texarkana Regional DialysisDialysis facility · Texarkana, TX
- Davita Twin CitiesDialysis facility · Texarkana, AR
- Christus St Michael Health SystemInpatient rehabilitation facility · Texarkana, TX
Industry payments (Open Payments)
- 2025$479.74 · 27 payments from 10 companies
- 2024$488.40 · 23 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $110.48 | 5 |
| Astrazeneca Pharmaceuticals LP | $99.51 | 6 |
| Akebia Therapeutics Inc | $59.39 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $51.89 | 3 |
| Novartis Pharmaceuticals Corporation | $42.46 | 1 |
What the 2025 payments were for
- Food and Beverage$478.96 · 25 payments
- Education$0.78 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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