Quick answers
- Which hospitals does John Loscalzo work at?
- Medicare's official clinician data lists John Loscalzo at 3 hospitals: Good Samaritan Hospital Medical Center, Long Island Jewish Medical Center and North Shore University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Loscalzo see patients?
- Medicare's clinician data lists 1 practice location in Bay Shore, NY. Call before your visit to confirm the address.
- What is John Loscalzo's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does John Loscalzo accept Medicare assignment?
- Yes. Medicare's clinician data says John Loscalzo 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 Loscalzo?
- (631) 666-6752, as listed in official Medicare / NPI Registry data.
- What is John Loscalzo's NPI number?
- 1699758482. 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 Loscalzo works
Medicare's Facility Affiliation Data lists John Loscalzo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · CCN 330195
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
Practice locations
Addresses where John Loscalzo is enrolled with Medicare (CMS data updated 2026-10-02).
- 24 E Main StBay Shore, NY 11706 (631) 666‑6752
Group practices
Medicare enrollment lists John Loscalzo as a member of this group (CMS data updated 2026-10-02).
- CHS Physician Partners PC743 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699758482 |
| 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