David K. Hahn, MD
NPI 1053625459ActiveIndividual· Psychiatry & Neurology, Neurology· Greenwich, CT
Psychiatry & Neurology, Neurology (MD) in Greenwich, Connecticut, trained at Warren Alpert Medical School of Brown University (class of 2008). Medicare paid $33,758 for services to 220 patients in 2024. Argenx US, Inc. reported $117.78 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1053625459 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 28, 2010 |
| Last updated in NPPES | Oct 28, 2025 |
| Certified by provider | Oct 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | ME134710 | FL |
| Psychiatry & Neurology, Neurology | 2084N0400X | 54629 | CT |
| Psychiatry & Neurology, Neurology | 2084N0400X | 4301114366 | MI |
| Psychiatry & Neurology, Neurology | 2084N0400X | 19408 | NH |
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 - Neurology (CT); Practitioner - Neurology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 220 |
|---|---|
| Services billed | 310 across 8 procedure codes |
| Paid by Medicare | $33,758 |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Neurology |
Medical groups
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
- East Post Road Medical Services PCWhite Plains, NY · 429 clinicians
- The Hospital of Central Connecticut at New Britain General and BradleyNew Britain, CT · 399 clinicians
- Midstate Medical CenterMeriden, CT · 186 clinicians
Hospital affiliations
- Midstate Medical CenterMeriden, CT
- Norwalk HospitalNorwalk, CT
- The Hospital of Central ConnecticutNew Britain, CT
- White Plains Hospital CenterWhite Plains, NY
Industry payments (Open Payments)
- 2025$117.78 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Argenx US, Inc. | $117.78 | 1 |
What the 2025 payments were for
- Food and Beverage$117.78 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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