Quick answers
- Which hospitals does Michael Gerringer work at?
- Medicare's official clinician data lists Michael Gerringer at 3 hospitals: Northern Dutchess Hospital, Vassar Brothers Medical Center and Westchester Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Gerringer see patients?
- Medicare's clinician data lists 1 practice location in Mount Kisco, NY. Call before your visit to confirm the address.
- What is Michael Gerringer's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michael Gerringer accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Gerringer 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 Michael Gerringer?
- (914) 241-1050, as listed in official Medicare / NPI Registry data.
- What is Michael Gerringer's NPI number?
- 1295732964. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael Gerringer works
Medicare's Facility Affiliation Data lists Michael Gerringer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northern Dutchess HospitalRhinebeck, NY · Acute Care Hospital · CCN 330049
- Vassar Brothers Medical CenterPoughkeepsie, NY · Acute Care Hospital · CCN 330023
- Westchester Medical CenterValhalla, NY · Acute Care Hospital · CCN 330234
Practice locations
Addresses where Michael Gerringer is enrolled with Medicare (CMS data updated 2026-10-02).
- 90 S Bedford RdMount Kisco, NY 10549 (914) 241‑1050
Group practices
Medicare enrollment lists Michael Gerringer as a member of this group (CMS data updated 2026-10-02).
- Optum Medical Care PC1,010 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Mount Kisco
Clinicians with the same Medicare primary specialty in Mount Kisco, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295732964 |
| 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