John Anthony Renda, MD
NPI 1447227566ActiveIndividual· Internal Medicine· Old Bridge, NJ
Internal Medicine (MD) with Garden State Gastroenterology,pc, practicing in Old Bridge, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $491,832 for 5,071 claims, against $67,590 paid for services in 2024. Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 10 companies reporting payments in 2025, $834.82 in all, mostly food and beverage. Lists Raritan Bay Medical Center as a hospital affiliation.
Overview
| NPI | 1447227566 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 7, 2006 |
| Last updated in NPPES | Jul 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 25MA04110200 | 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 - Internal Medicine (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 194 |
|---|---|
| Services billed | 683 across 17 procedure codes |
| Paid by Medicare | $67,590 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,071 · 11,580 30-day fills |
|---|---|
| Patients | 417 |
| Total drug cost | $491,832 |
| Generic share | 87% of claims |
Education and affiliations
| Medicare specialty | Internal Medicine |
|---|
Medical group
- Garden State Gastroenterology,pcOld Bridge, NJ · 3 clinicians
Hospital affiliation
- Raritan Bay Medical CenterPerth Amboy, NJ
Industry payments (Open Payments)
- 2025$834.82 · 53 payments from 10 companies
- 2024$913.49 · 60 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $275.97 | 19 |
| Astrazeneca Pharmaceuticals LP | $201.20 | 13 |
| Novo Nordisk Inc | $84.35 | 5 |
| Corcept Therapeutics | $81.93 | 5 |
| Phathom Pharmaceuticals, Inc. | $54.38 | 4 |
What the 2025 payments were for
- Food and Beverage$834.82 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 45 internal medicine physicians in Old Bridge · All internal medicine physicians in New Jersey