Gregory Scott Lesser, M.D.
NPI 1023096575ActiveIndividual· Internal Medicine, Gastroenterology· Willingboro, NJ
Internal Medicine, Gastroenterology (M.D.) with Nj Gastro, LLC, practicing in Willingboro, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $125,975 for 1,058 claims, against $32,875 paid for services in 2024. Braintree Laboratories, Inc. was the largest of 2 companies reporting payments in 2025, $33.55 in all, mostly food and beverage. Lists Saint Michael's Medical Center as a hospital affiliation.
Overview
| NPI | 1023096575 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 5, 2006 |
| Last updated in NPPES | Dec 30, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA074450 | NJ |
| Internal Medicine, Gastroenterology | 207RG0100X | MD424644 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 109 |
|---|---|
| Services billed | 274 across 16 procedure codes |
| Paid by Medicare | $32,875 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,058 · 1,813 30-day fills |
|---|---|
| Patients | 275 |
| Total drug cost | $125,975 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Nj Gastro, LLCNewark, NJ · 4 clinicians
Hospital affiliation
- Saint Michael's Medical CenterNewark, NJ
Industry payments (Open Payments)
- 2025$33.55 · 2 payments from 2 companies
- 2024$27.48 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Braintree Laboratories, Inc. | $17.33 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $16.22 | 1 |
What the 2025 payments were for
- Food and Beverage$33.55 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Willingboro
- 1679866818
- 1316397425
- 1114929858
- 1801250766
- 1336132489
- 1427203694
All Internal Medicine, Gastroenterology providers in New Jersey →