Quick answers
- Which hospitals does Mark Schachter work at?
- Medicare's official clinician data lists Mark Schachter at 2 hospitals: Montefiore Medical Center and Montefiore Mount Vernon Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Schachter see patients?
- Medicare's clinician data lists 2 practice locations, including Patchogue, NY and Binghamton, NY. Call before your visit to confirm the address.
- What is Mark Schachter's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mark Schachter accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Schachter 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.
- What is the phone number for Mark Schachter?
- (631) 687-4131, as listed in official Medicare / NPI Registry data.
- What is Mark Schachter's NPI number?
- 1932649241. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Schachter works
Medicare's Facility Affiliation Data lists Mark Schachter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Montefiore Medical CenterBronx, NY · Acute Care Hospital · CCN 330059
- Montefiore Mount Vernon HospitalMount Vernon, NY · Acute Care Hospital · CCN 330086
Practice locations
Addresses where Mark Schachter is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 Hospital RdPatchogue, NY 11772 (631) 687‑4131
- 169 Riveride DrBinghamton, NY 13905 (607) 798‑5671
Group practices
Medicare enrollment lists Mark Schachter as a member of this group (CMS data updated 2026-10-02).
- Cogent Medical Care PC154 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Patchogue
Clinicians with the same Medicare primary specialty in Patchogue, NY — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932649241 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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