Leon Itwar, DO
NPI 1356964258ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· New Hyde Park, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (DO) with New York University, practicing in New Hyde Park, New York. Part D covered 594 prescriptions written in 2024, 43% of them generic. Novo Nordisk Inc reported $44.03 in payments in 2025, mostly food and beverage. Lists NYU Langone Hospitals as a hospital affiliation.
Overview
| NPI | 1356964258 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 26, 2020 |
| Last updated in NPPES | Jul 10, 2025 |
| Certified by provider | Jul 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 337425 | 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 - Endocrinology (NY) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 594 · 1,079 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $268,436 |
| Generic share | 43% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Hospital affiliation
- NYU Langone HospitalsNew York, NY
Industry payments (Open Payments)
- 2025$44.03 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $44.03 | 2 |
What the 2025 payments were for
- Food and Beverage$44.03 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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