Sebastian Wilk, MD
NPI 1619389475ActiveIndividual· Internal Medicine, Rheumatology· Olean, NY
Internal Medicine, Rheumatology (MD) with Buffalo Rheumatology and Medicine PLLC, practicing in Olean, New York. Their prescriptions cost Medicare Part D more than their services did: $4,752,044 for 3,727 claims, against $2,091,580 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 16 companies reporting payments in 2025, $135,400 in all, mostly speaking and faculty fees. Lists Kaleida Health and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1619389475 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 28, 2014 |
| Last updated in NPPES | Oct 11, 2019 |
| Reactivated | May 13, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 297852 | 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 | 515 |
|---|---|
| Services billed | 128,078 across 78 procedure codes |
| Paid by Medicare | $2,091,580 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,727 · 7,216 30-day fills |
|---|---|
| Patients | 722 |
| Total drug cost | $4,752,044 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical group
- Buffalo Rheumatology and Medicine PLLCOrchard Park, NY · 11 clinicians
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Mercy Hospital of BuffaloBuffalo, NY
- Olean General HospitalOlean, NY
- Sisters of Charity HospitalBuffalo, NY
- Upmc Chautauqua at WcaJamestown, NY
Industry payments (Open Payments)
- 2025$135,400 · 267 payments from 16 companies
- 2024$43,784 · 143 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $46,356 | 65 |
| Amgen Inc. | $41,988 | 79 |
| Ucb, Inc. | $31,153 | 63 |
| Glaxosmithkline, LLC. | $7,471 | 14 |
| Novartis Pharmaceuticals Corporation | $4,728 | 10 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$98,355 · 41 payments
- Travel and Lodging$17,020 · 57 payments
- Consulting Fee$13,523 · 5 payments
- Food and Beverage$6,485 · 163 payments
- Education$17.69 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Rheumatology providers in Olean
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