Quick answers
- Which hospitals does Peter Einersen work at?
- Medicare's official clinician data lists Peter Einersen at 3 hospitals: Brooklyn Hospital Center - Downtown Campus, Mount Sinai Hospital and Mount Sinai West. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter Einersen see patients?
- Medicare's clinician data lists 1 practice location in Katonah, NY. Call before your visit to confirm the address.
- What is Peter Einersen's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Peter Einersen accept Medicare assignment?
- Yes. Medicare's clinician data says Peter Einersen 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 Peter Einersen?
- (914) 523-6713, as listed in official Medicare / NPI Registry data.
- What is Peter Einersen's NPI number?
- 1639512478. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Peter Einersen works
Medicare's Facility Affiliation Data lists Peter Einersen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Brooklyn Hospital Center - Downtown CampusBrooklyn, NY · Acute Care Hospital · CCN 330056
- Mount Sinai HospitalNew York, NY · Acute Care Hospital · CCN 330024
- Mount Sinai WestNew York, NY · Acute Care Hospital · CCN 330046
Practice locations
Addresses where Peter Einersen is enrolled with Medicare (CMS data updated 2026-10-02).
- 315 Jay StKatonah, NY 10536 (914) 523‑6713
Specialties
- General Surgeryprimary
Other general surgeons in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Graduation year | 2013 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639512478 |
| 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