Quick answers
- Which hospitals does Lance S. Lefkowitz work at?
- Medicare's official clinician data lists Lance S. Lefkowitz at 5 hospitals: Good Samaritan Hospital Medical Center, North Shore University Hospital, Ns/Lij HS Southside Hospital, Peconic Bay Medical Center and Plainview Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lance S. Lefkowitz see patients?
- Medicare's clinician data lists 2 practice locations, including West Islip, NY and Deer Park, NY. Call before your visit to confirm the address.
- What is Lance S. Lefkowitz's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Lance S. Lefkowitz accept Medicare assignment?
- Yes. Medicare's clinician data says Lance S. Lefkowitz 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 Lance S. Lefkowitz?
- (631) 465-6225, as listed in official Medicare / NPI Registry data.
- What is Lance S. Lefkowitz's NPI number?
- 1528267523. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lance S. Lefkowitz works
Medicare's Facility Affiliation Data lists Lance S. Lefkowitz 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
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Ns/Lij HS Southside HospitalBay Shore, NY · Acute Care Hospital · CCN 330043
- Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · CCN 330107
- Plainview HospitalPlainview, NY · Acute Care Hospital · CCN 330331
Practice locations
Addresses where Lance S. Lefkowitz is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Montauk HwyWest Islip, NY 11795 (631) 465‑6225
- 1630 Deer Park AveDeer Park, NY 11729 (631) 242‑6166
Group practices
Medicare enrollment lists Lance S. Lefkowitz as a member of these groups (CMS data updated 2026-10-02).
- Cardiac Ekg Interpretation, P. C.57 clinicians in the group
- North Shore - Lij Cardiology at Deer Park PC7 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in West Islip
Clinicians with the same Medicare primary specialty in West Islip, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528267523 |
| 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