Quick answers
- Which hospitals does Roland Losos work at?
- Medicare's official clinician data lists Roland Losos at 2 hospitals: Clara Maass Medical Center and Hackensack University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Roland Losos see patients?
- Medicare's clinician data lists 1 practice location in Lyndhurst, NJ. Call before your visit to confirm the address.
- What is Roland Losos's specialty?
- Medicare lists Geriatric Medicine as the primary specialty, and also Internal Medicine.
- Does Roland Losos accept Medicare assignment?
- Yes. Medicare's clinician data says Roland Losos 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 Roland Losos?
- (201) 933-4700, as listed in official Medicare / NPI Registry data.
- What is Roland Losos's NPI number?
- 1124282033. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Roland Losos works
Medicare's Facility Affiliation Data lists Roland Losos at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Clara Maass Medical CenterBelleville, NJ · Acute Care Hospital · CCN 310009
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · CCN 310001
Practice locations
Addresses where Roland Losos is enrolled with Medicare (CMS data updated 2026-10-02).
- 155 Park Ave, Suite 206Lyndhurst, NJ 07071 (201) 933‑4700
Specialties
- Geriatric Medicineprimary
- Internal Medicinealso
Other geriatricians in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124282033 |
| 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