Quick answers
- Which hospitals does Frederick D. Kaplan work at?
- Medicare's official clinician data lists Frederick D. Kaplan at 1 hospital: North Shore University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Frederick D. Kaplan see patients?
- Medicare's clinician data lists 1 practice location in Plainview, NY. Call before your visit to confirm the address.
- What is Frederick D. Kaplan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Frederick D. Kaplan accept Medicare assignment?
- Yes. Medicare's clinician data says Frederick D. Kaplan 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 Frederick D. Kaplan?
- (516) 937-6620, as listed in official Medicare / NPI Registry data.
- What is Frederick D. Kaplan's NPI number?
- 1447295571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Frederick D. Kaplan works
Medicare's Facility Affiliation Data lists Frederick D. Kaplan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
Practice locations
Addresses where Frederick D. Kaplan is enrolled with Medicare (CMS data updated 2026-10-02).
- 750 Old Country RdPlainview, NY 11803 (516) 937‑6620
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Plainview
Clinicians with the same Medicare primary specialty in Plainview, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447295571 |
| 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