Louis Swartz, MD
NPI 1619056421ActiveIndividual· Specialist· Freeport, NY
Specialist (MD) with Prine Health Medical Group, PLLC, practicing in Freeport, New York. In 2024 Medicare paid $258,688 for 700 patients, and Part D covered 507 of their prescriptions, 72% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 6 companies reporting payments in 2025, $258.22 in all, mostly food and beverage. Lists Long Island Jewish Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1619056421 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 3, 2006 |
| Last updated in NPPES | Apr 10, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 186021 | 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 - Nephrology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 700 |
|---|---|
| Services billed | 3,421 across 61 procedure codes |
| Paid by Medicare | $258,688 |
Part D prescriptions in 2024
| Prescriptions (claims) | 507 · 1,071 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $189,052 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Prine Health Medical Group, PLLCManhasset, NY · 77 clinicians
Hospital affiliations
- Long Island Jewish Medical CenterNew Hyde Park, NY
- Mount Sinai South NassauOceanside, NY
- North Shore University HospitalManhasset, NY
- St Francis Hospital - the Heart CenterRoslyn, NY
Other facilities
- Davita Freeport Kidney CenterDialysis facility · Freeport, NY
- Mount Sinai South Nassau Outpatient Dialysis CenterDialysis facility · Oceanside, NY
Industry payments (Open Payments)
- 2025$258.22 · 9 payments from 6 companies
- 2024$47.12 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $120.06 | 2 |
| Ardelyx, Inc. | $47.55 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $34.89 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $21.21 | 1 |
| Vifor Pharma, Inc. | $17.76 | 1 |
What the 2025 payments were for
- Food and Beverage$258.22 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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