Quick answers
- Which hospitals does Mark H. Genovesi work at?
- Medicare's official clinician data lists Mark H. Genovesi at 4 hospitals: Chsli St Joseph Hospital, Good Samaritan Hospital Medical Center, St Catherine of Siena Hospital and St Charles Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark H. Genovesi see patients?
- Medicare's clinician data lists 2 practice locations, including Port Jefferson Station, NY and Greenvale, NY. Call before your visit to confirm the address.
- What is Mark H. Genovesi's specialty?
- Medicare lists Cardiac Surgery as the primary specialty.
- Does Mark H. Genovesi accept Medicare assignment?
- Yes. Medicare's clinician data says Mark H. Genovesi 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 Mark H. Genovesi?
- (917) 715-3192, as listed in official Medicare / NPI Registry data.
- What is Mark H. Genovesi's NPI number?
- 1578582292. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark H. Genovesi works
Medicare's Facility Affiliation Data lists Mark H. Genovesi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chsli St Joseph HospitalBethpage, NY · Acute Care Hospital · CCN 330332
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
- St Charles HospitalPort Jefferson, NY · Acute Care Hospital · CCN 330246
Practice locations
Addresses where Mark H. Genovesi is enrolled with Medicare (CMS data updated 2026-10-02).
- 1500 Route 112, Suite 8bPort Jefferson Station, NY 11776 (917) 715‑3192
- 37 Northern Blvd, Unit 15Greenvale, NY 11548
Specialties
- Cardiac Surgeryprimary
Other cardiac surgeons in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578582292 |
| 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