Sadia Nafees Ahmed, MD
NPI 1558525881ActiveIndividual· Internal Medicine, Rheumatology· Williamsville, NY
Internal Medicine, Rheumatology (MD) with Ahmed and Ahmed Physicians PC, practicing in Williamsville, New York. Their prescriptions cost Medicare Part D more than their services did: $1,877,326 for 2,536 claims, against $271,402 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $1,033 in all, mostly food and beverage. Lists Kaleida Health and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1558525881 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 16, 2008 |
| Last updated in NPPES | Mar 11, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 259583-1 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 235 |
|---|---|
| Services billed | 29,486 across 36 procedure codes |
| Paid by Medicare | $271,402 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,536 · 4,139 30-day fills |
|---|---|
| Patients | 654 |
| Total drug cost | $1,877,326 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Ahmed and Ahmed Physicians PCWilliamsville, NY · 7 clinicians
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Kenmore Mercy HospitalKenmore, NY
- Mount St. Mary's Hospital & Health CenterLewiston, NY
- Sisters of Charity HospitalBuffalo, NY
Industry payments (Open Payments)
- 2025$1,033 · 55 payments from 16 companies
- 2024$1,730 · 80 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $201.59 | 11 |
| Pfizer Inc. | $172.58 | 13 |
| Amgen Inc. | $157.70 | 10 |
| E.R. Squibb & Sons, L.L.C. | $126.69 | 5 |
| Janssen Biotech, Inc. | $53.63 | 2 |
What the 2025 payments were for
- Food and Beverage$1,033 · 55 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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