Quick answers
- Which hospitals does Jeffrey Loeffler work at?
- Medicare's official clinician data lists Jeffrey Loeffler at 2 hospitals: Staten Island University Hospital and Suny/Downstate University Hospital of Brooklyn. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey Loeffler see patients?
- Medicare's clinician data lists 2 practice locations, including Brooklyn, NY and Staten Island, NY. Call before your visit to confirm the address.
- What is Jeffrey Loeffler's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Jeffrey Loeffler accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey Loeffler 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 Jeffrey Loeffler?
- (718) 270-1000, as listed in official Medicare / NPI Registry data.
- What is Jeffrey Loeffler's NPI number?
- 1245819762. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jeffrey Loeffler works
Medicare's Facility Affiliation Data lists Jeffrey Loeffler at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Staten Island University HospitalStaten Island, NY · Acute Care Hospital · CCN 330160
- Suny/Downstate University Hospital of BrooklynBrooklyn, NY · Acute Care Hospital · CCN 330350
Practice locations
Addresses where Jeffrey Loeffler is enrolled with Medicare (CMS data updated 2026-10-02).
- 445 Lenox RdBrooklyn, NY 11203 (718) 270‑1000
- 475 Seaview AveStaten Island, NY 10305 (212) 434‑6980
Group practices
Medicare enrollment lists Jeffrey Loeffler as a member of these groups (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Inhospital Physicians Corp25 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245819762 |
| 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