Benjamin Wallbrunn Felder, DO
NPI 1003261041ActiveIndividual· Internal Medicine· Oceanside, NY
Internal Medicine (DO) with Icahn School of Medicine at Mount Sinai and 2 other groups, practicing in Oceanside, New York. In 2024 Medicare paid $34,236 for 163 patients, and Part D covered 114 of their prescriptions, 89% of them generic. Viiv Healthcare Company reported $125.00 in payments in 2025, mostly food and beverage. Lists Brooklyn Hospital Center - Downtown Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1003261041 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 27, 2016 |
| Last updated in NPPES | Aug 1, 2023 |
| Certified by provider | Jul 27, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 316981 | NY |
| Hospitalist | 208M00000X | 316981 | 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 | 163 |
|---|---|
| Services billed | 371 across 11 procedure codes |
| Paid by Medicare | $34,236 |
Part D prescriptions in 2024
| Prescriptions (claims) | 114 · 152 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $10,888 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
Medical groups
- Icahn School of Medicine at Mount SinaiNew York, NY · 2,843 clinicians
- Mount Sinai School of MedicineOceanside, NY · 148 clinicians
- Atlantic Professional Services of Rhode Island IncorporatedBrooklyn, NY · 16 clinicians
Hospital affiliations
- Brooklyn Hospital Center - Downtown CampusBrooklyn, NY
- Mount Sinai South NassauOceanside, NY
Industry payments (Open Payments)
- 2025$125.00 · 1 payment from 1 company
- 2024$26.61 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $125.00 | 1 |
What the 2025 payments were for
- Food and Beverage$125.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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