Anthony Nehlsen, MD
NPI 1144753567ActiveIndividual· Radiology, Radiation Oncology· New York, NY
Radiology, Radiation Oncology (MD) with Icahn School of Medicine at Mount Sinai and 1 other group, practicing in New York, New York. 199 Medicare patients in 2024, $230,024 paid; all of their 76 Part D prescriptions were generic. Sumitomo Pharma America, Inc. reported $27.54 in payments in 2025, mostly food and beverage. Lists Mount Sinai Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1144753567 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 4, 2017 |
| Last updated in NPPES | Nov 7, 2025 |
| Certified by provider | Nov 7, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 316701 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Radiation Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 199 |
|---|---|
| Services billed | 1,116 across 26 procedure codes |
| Paid by Medicare | $230,024 |
Part D prescriptions in 2024
| Prescriptions (claims) | 76 · 78 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $781.00 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Icahn School of Medicine at Mount SinaiNew York, NY · 2,843 clinicians
- The New York Proton CenterNew York, NY · 46 clinicians
Hospital affiliations
- Mount Sinai HospitalNew York, NY
- Mount Sinai WestNew York, NY
Industry payments (Open Payments)
- 2025$27.54 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $27.54 | 1 |
What the 2025 payments were for
- Food and Beverage$27.54 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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