Ramasamy Swami Nathan, M.D.
NPI 1538114566ActiveIndividual· Internal Medicine, Gastroenterology· Plantation, FL
Internal Medicine, Gastroenterology (M.D.) with Aventura Healthcare Specialists, LLC, practicing in Plantation, Florida. Mostly services rather than prescriptions: Medicare paid $40,028 for 287 patients in 2024, with only 13 Part D claims. Madrigal Pharmaceuticals was the largest of 4 companies reporting payments in 2025, $392.45 in all, mostly food and beverage. Lists HCA Florida Aventura Hospital as a hospital affiliation.
Overview
| NPI | 1538114566 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 25, 2006 |
| Last updated in NPPES | Jan 30, 2023 |
| Certified by provider | Jan 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME146269 | FL |
| Internal Medicine, Gastroenterology | 207RG0100X | MA49072 | 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 - Gastroenterology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 287 |
|---|---|
| Services billed | 508 across 21 procedure codes |
| Paid by Medicare | $40,028 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 32 30-day fills |
|---|---|
| Total drug cost | $92.92 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Aventura Healthcare Specialists, LLCAventura, FL · 21 clinicians
Hospital affiliation
- HCA Florida Aventura HospitalAventura, FL
Industry payments (Open Payments)
- 2025$392.45 · 4 payments from 4 companies
- 2024$1,282 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $132.80 | 1 |
| Novo Nordisk Inc | $124.99 | 1 |
| Abbvie Inc. | $117.84 | 1 |
| Boston Scientific Corporation | $16.82 | 1 |
What the 2025 payments were for
- Food and Beverage$392.45 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 gastroenterologists in Plantation · All gastroenterologists in Florida