Quick answers
- Which hospitals does John N. Catanzaro work at?
- Medicare's official clinician data lists John N. Catanzaro at 1 hospital: John T Mather Memorial Hospital of Port Jefferson. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John N. Catanzaro see patients?
- Medicare's clinician data lists 2 practice locations, including New Hyde Park, NY and Port Jefferson Station, NY. Call before your visit to confirm the address.
- What is John N. Catanzaro's specialty?
- Medicare lists Cardiac Electrophysiology as the primary specialty, and also Cardiovascular Disease (Cardiology) and Internal Medicine.
- Does John N. Catanzaro accept Medicare assignment?
- Yes. Medicare's clinician data says John N. Catanzaro 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 John N. Catanzaro?
- (718) 470-7000, as listed in official Medicare / NPI Registry data.
- What is John N. Catanzaro's NPI number?
- 1003077140. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John N. Catanzaro works
Medicare's Facility Affiliation Data lists John N. Catanzaro at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · CCN 330185
Practice locations
Addresses where John N. Catanzaro is enrolled with Medicare (CMS data updated 2026-10-02).
- 27005 75th AveNew Hyde Park, NY 11040 (718) 470‑7000
- 815 Hallock AvePort Jefferson Station, NY 11776 (631) 675‑9010
Group practices
Medicare enrollment lists John N. Catanzaro as a member of this group (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
Other cardiac electrophysiologists in New Hyde Park
Clinicians with the same Medicare primary specialty in New Hyde Park, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003077140 |
| 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