Quick answers
- Where does Bernard D. Bienstock see patients?
- Medicare's clinician data lists 2 practice locations, including Valley Stream, NY and Rego Park, NY. Call before your visit to confirm the address.
- What is Bernard D. Bienstock's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Bernard D. Bienstock accept Medicare assignment?
- Yes. Medicare's clinician data says Bernard D. Bienstock accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Bernard D. Bienstock offer telehealth?
- Medicare's clinician data says Bernard D. Bienstock offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Bernard D. Bienstock?
- (516) 536-5656, as listed in official Medicare / NPI Registry data.
- What is Bernard D. Bienstock's NPI number?
- 1043229008. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Bernard D. Bienstock is enrolled with Medicare (CMS data updated 2026-10-02).
- 70 E Sunrise HwyValley Stream, NY 11581 (516) 536‑5656
- 9777 Queens BlvdRego Park, NY 11374 (718) 261‑9100
Group practices
Medicare enrollment lists Bernard D. Bienstock as a member of this group (CMS data updated 2026-10-02).
- New York University6,134 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Valley Stream
Clinicians with the same Medicare primary specialty in Valley Stream, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043229008 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians