Benjamin Nicholas Anton Larsen, DO
NPI 1780333690ActiveIndividual· Internal Medicine· Derby, CT
Internal Medicine (DO) in Derby, Connecticut, licensed in CT, with an NPI issued in March 2022. Part D covered 70 prescriptions written in 2024, 87% of them generic.
Overview
| NPI | 1780333690 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 20, 2022 |
| Last updated in NPPES | Jun 11, 2026 |
| Certified by provider | Jun 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 84796 | CT |
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 - Internal Medicine (CT) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 70 · 99 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $4,437 |
| Generic share | 87% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 46 internal medicine physicians in Derby · All internal medicine physicians in Connecticut