Mohammed Ashfaq Ahmed, MD
NPI 1851545859ActiveIndividual· Internal Medicine, Nephrology· Houston, TX
Internal Medicine, Nephrology (MD) with Renal Specialists of Houston, PA, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $347,864 for 849 claims, against $125,944 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 3 companies reporting payments in 2025, $53.16 in all, mostly food and beverage. Lists HCA Houston Healthcare Clear Lake and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1851545859 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 5, 2008 |
| Last updated in NPPES | Sep 14, 2026 |
| Certified by provider | Sep 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | M1453 | 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 - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 486 |
|---|---|
| Services billed | 1,045 across 19 procedure codes |
| Paid by Medicare | $125,944 |
Part D prescriptions in 2024
| Prescriptions (claims) | 849 · 1,545 30-day fills |
|---|---|
| Patients | 256 |
| Total drug cost | $347,864 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Renal Specialists of Houston, PAHouston, TX · 24 clinicians
Hospital affiliations
- HCA Houston Healthcare Clear LakeWebster, TX
- HCA Houston Healthcare PearlandPearland, TX
- Houston Methodist Baytown HospitalBaytown, TX
- Houston Methodist Clear Lake HospitalNassau Bay, TX
- Memorial Hermann Hospital SystemHouston, TX
Other facilities
- Fkc Pearland Town CenterDialysis facility · Pearland, TX
- Fmc Dialysis Services of DickinsonDialysis facility · Dickinson, TX
- Fmc North East HoustonDialysis facility · Houston, TX
- Fresenius Medical Care Baytown NorthDialysis facility · Baytown, TX
- Fresenius Medical Care Pamela HeightsDialysis facility · Houston, TX
Industry payments (Open Payments)
- 2025$53.16 · 3 payments from 3 companies
- 2024$279.10 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $22.92 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $20.22 | 1 |
| Corium, LLC | $10.02 | 1 |
What the 2025 payments were for
- Food and Beverage$32.94 · 2 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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