Oscar De Leon, MD
NPI 1467458851ActiveIndividual· Anesthesiology· Buffalo, NY
Anesthesiology (MD) with Roswell Park Cancer Institute, practicing in Buffalo, New York. Their prescriptions cost Medicare Part D more than their services did: $51,338 for 894 claims, against $12,024 paid for services in 2024. Vertex Pharmaceuticals Incorporated reported $13,703 in payments in 2025, mostly speaking and faculty fees.
Overview
| NPI | 1467458851 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 22, 2005 |
| Last updated in NPPES | Jan 23, 2025 |
| Certified by provider | Jan 23, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 181407 | NY |
| Anesthesiology, Pain Medicine | 207LP2900X | 181407 | NY |
| Anesthesiology, Critical Care Medicine | 207LC0200X | 181407 | NY |
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 - Anesthesiology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 73 |
|---|---|
| Services billed | 205 across 16 procedure codes |
| Paid by Medicare | $12,024 |
Part D prescriptions in 2024
| Prescriptions (claims) | 894 · 939 30-day fills |
|---|---|
| Patients | 187 |
| Total drug cost | $51,338 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- Roswell Park Cancer InstituteBuffalo, NY · 488 clinicians
Industry payments (Open Payments)
- 2025$13,703 · 19 payments from 1 company
- 2024$1,590 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $13,703 | 19 |
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$8,121 · 3 payments
- Consulting Fee$3,460 · 1 payment
- Travel and Lodging$1,653 · 9 payments
- Food and Beverage$469.30 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 177 anesthesiologists in Buffalo · All anesthesiologists in New York