Bernard D. Bienstock, MD
NPI 1043229008ActiveIndividual· Internal Medicine, Gastroenterology· Valley Stream, NY
Internal Medicine, Gastroenterology (MD) with New York University, practicing in Valley Stream, New York. In 2024 Medicare paid $61,899 for 190 patients, and Part D covered 391 of their prescriptions, 84% of them generic. Novo Nordisk Inc was the largest of 4 companies reporting payments in 2025, $91.25 in all, mostly food and beverage.
Overview
| NPI | 1043229008 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 7, 2006 |
| Last updated in NPPES | May 3, 2023 |
| Certified by provider | May 3, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 182358-1 | NY |
| Internal Medicine | 207R00000X | 182358-1 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 190 |
|---|---|
| Services billed | 552 across 24 procedure codes |
| Paid by Medicare | $61,899 |
Part D prescriptions in 2024
| Prescriptions (claims) | 391 · 777 30-day fills |
|---|---|
| Patients | 188 |
| Total drug cost | $65,615 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Industry payments (Open Payments)
- 2025$91.25 · 4 payments from 4 companies
- 2024$13.34 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $32.27 | 1 |
| Galderma Laboratories, L.P. | $23.90 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $20.63 | 1 |
| Janssen Biotech, Inc. | $14.45 | 1 |
What the 2025 payments were for
- Food and Beverage$58.98 · 3 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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