Ayesha Zaheer Butt, MD
NPI 1164669651ActiveIndividual· Internal Medicine· Tonawanda, NY
Internal Medicine (MD) with Sisters of Charity Hospital of Buffalo New York, practicing in Tonawanda, New York. Their prescriptions cost Medicare Part D more than their services did: $856,544 for 6,504 claims, against $19,038 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 15 companies reporting payments in 2025, $794.61 in all, mostly food and beverage. Lists Kaleida Health and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1164669651 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 21, 2009 |
| Last updated in NPPES | Aug 24, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 254106 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 114 |
|---|---|
| Services billed | 306 across 12 procedure codes |
| Paid by Medicare | $19,038 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,504 · 15,008 30-day fills |
|---|---|
| Patients | 509 |
| Total drug cost | $856,544 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Sisters of Charity Hospital of Buffalo New YorkBuffalo, NY · 164 clinicians
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Kenmore Mercy HospitalKenmore, NY
- Sisters of Charity HospitalBuffalo, NY
Other facilities
- McAuley Seton Home Care Corp ChhaHome health agency · Buffalo, NY
Industry payments (Open Payments)
- 2025$794.61 · 42 payments from 15 companies
- 2024$783.72 · 47 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $134.69 | 10 |
| Lilly USA, LLC | $112.79 | 5 |
| Glaxosmithkline, LLC. | $88.80 | 5 |
| Exact Sciences Corporation | $79.78 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $79.26 | 4 |
What the 2025 payments were for
- Food and Beverage$794.61 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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