Quick answers
- Which hospitals does Joe E. Najjar work at?
- Medicare's official clinician data lists Joe E. Najjar at 2 hospitals: St Joseph's University Medical Center Inc and St Mary's General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joe E. Najjar see patients?
- Medicare's clinician data lists 1 practice location in Clifton, NJ. Call before your visit to confirm the address.
- What is Joe E. Najjar's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Joe E. Najjar accept Medicare assignment?
- Yes. Medicare's clinician data says Joe E. Najjar 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 Joe E. Najjar?
- (973) 778-8666, as listed in official Medicare / NPI Registry data.
- What is Joe E. Najjar's NPI number?
- 1659316289. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joe E. Najjar works
Medicare's Facility Affiliation Data lists Joe E. Najjar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Joseph's University Medical Center IncPaterson, NJ · Acute Care Hospital · CCN 310019
- St Mary's General HospitalPassaic, NJ · Acute Care Hospital · CCN 310006
Practice locations
Addresses where Joe E. Najjar is enrolled with Medicare (CMS data updated 2026-10-02).
- 975 Clifton Ave, Suite 4Clifton, NJ 07013 (973) 778‑8666
Group practices
Medicare enrollment lists Joe E. Najjar as a member of this group (CMS data updated 2026-10-02).
- The Medical Group of New Jersey314 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659316289 |
| 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