Louis N. Gerolemou, DO
NPI 1104919323ActiveIndividual· Internal Medicine, Pulmonary Disease· Brooklyn, NY
Internal Medicine, Pulmonary Disease (DO) in Brooklyn, New York, licensed in NY, with an NPI issued in October 2006. Their prescriptions cost Medicare Part D more than their services did: $535,298 for 1,603 claims, against $26,835 paid for services in 2024. Insmed, Inc. reported $49.44 in payments in 2025, mostly food and beverage. Lists Brooklyn Hospital Center - Downtown Campus as a hospital affiliation.
Overview
| NPI | 1104919323 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Oct 2, 2006 |
| Last updated in NPPES | Jun 15, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 240293 | NY |
| Internal Medicine | 207R00000X | 240293 | NY |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 240293 | NY |
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 - Pulmonary Disease (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 365 across 24 procedure codes |
| Paid by Medicare | $26,835 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,603 · 1,928 30-day fills |
|---|---|
| Patients | 180 |
| Total drug cost | $535,298 |
| Generic share | 42% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
Hospital affiliation
- Brooklyn Hospital Center - Downtown CampusBrooklyn, NY
Industry payments (Open Payments)
- 2025$49.44 · 2 payments from 1 company
- 2024$25.74 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $49.44 | 2 |
What the 2025 payments were for
- Food and Beverage$49.44 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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