Quick answers
- Which hospitals does Jonathan Kaplan work at?
- Medicare's official clinician data lists Jonathan Kaplan at 4 hospitals: Boca Raton Regional Hospital, North Shore University Hospital, Northwell Hospital Glen Cove and St Francis Hospital - The Heart Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan Kaplan see patients?
- Medicare's clinician data lists 1 practice location in Great Neck, NY. Call before your visit to confirm the address.
- What is Jonathan Kaplan's specialty?
- Medicare lists Endocrinology as the primary specialty, and also Internal Medicine.
- Does Jonathan Kaplan accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan 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 Jonathan Kaplan?
- (516) 829-0802, as listed in official Medicare / NPI Registry data.
- What is Jonathan Kaplan's NPI number?
- 1285713487. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan Kaplan works
Medicare's Facility Affiliation Data lists Jonathan Kaplan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Boca Raton Regional HospitalBoca Raton, FL · Acute Care Hospital · CCN 100168
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Northwell Hospital Glen CoveGlen Cove, NY · Acute Care Hospital · CCN 330181
- St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · CCN 330182
Practice locations
Addresses where Jonathan Kaplan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Northern Blvd, Suite 112Great Neck, NY 11021 (516) 829‑0802
Specialties
- Endocrinologyprimary
- Internal Medicinealso
Other endocrinologists in Great Neck
Clinicians with the same Medicare primary specialty in Great Neck, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285713487 |
| 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