Louis J. Arno, M.D.
NPI 1720185978ActiveIndividual· Internal Medicine, Pulmonary Disease· Branchburg, NJ
Internal Medicine, Pulmonary Disease (M.D.) with Hunterdon Specialty Care PC, practicing in Branchburg, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $1,604,656 for 1,626 claims, against $75,631 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 16 companies reporting payments in 2025, $1,921 in all, mostly food and beverage. Lists Hunterdon Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1720185978 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Jan 23, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | MA55142 | NJ |
| Internal Medicine, Critical Care Medicine | 207RC0200X | MA55142 | NJ |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 25MA05514200 | NJ |
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 (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 294 |
|---|---|
| Services billed | 1,489 across 16 procedure codes |
| Paid by Medicare | $75,631 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,626 · 2,272 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $1,604,656 |
| Generic share | 36% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Medical group
- Hunterdon Specialty Care PCBridgewater, NJ · 93 clinicians
Hospital affiliations
- Hunterdon Medical CenterFlemington, NJ
- Robert Wood Johnson University Hospital - SomersetSomerville, NJ
Industry payments (Open Payments)
- 2025$1,921 · 110 payments from 16 companies
- 2024$1,505 · 94 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $562.55 | 39 |
| Glaxosmithkline, LLC. | $478.52 | 28 |
| Verona Pharma, Inc. | $125.62 | 7 |
| Amgen Inc. | $120.38 | 6 |
| Pulmonx Corporation | $118.84 | 1 |
What the 2025 payments were for
- Food and Beverage$1,887 · 109 payments
- Education$34.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other pulmonologists in Branchburg
- 1558835199