Quick answers
- Which hospitals does Edward Kosoy work at?
- Medicare's official clinician data lists Edward Kosoy at 1 hospital: Hackensack Meridian Mountainside Medical. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Edward Kosoy see patients?
- Medicare's clinician data lists 2 practice locations, including West Caldwell, NJ and Verona, NJ. Call before your visit to confirm the address.
- What is Edward Kosoy's specialty?
- Medicare lists Family Practice as the primary specialty, and also Internal Medicine.
- Does Edward Kosoy accept Medicare assignment?
- Yes. Medicare's clinician data says Edward Kosoy 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 Edward Kosoy?
- (973) 771-8601, as listed in official Medicare / NPI Registry data.
- What is Edward Kosoy's NPI number?
- 1871561571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Edward Kosoy works
Medicare's Facility Affiliation Data lists Edward Kosoy at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hackensack Meridian Mountainside MedicalMontclair, NJ · Acute Care Hospital · CCN 310054
Practice locations
Addresses where Edward Kosoy is enrolled with Medicare (CMS data updated 2026-10-02).
- 704 Passaic AveWest Caldwell, NJ 07006 (973) 771‑8601
- 799 Bloomfield Ave, Suite 210Verona, NJ 07044 (973) 746‑7050
Group practices
Medicare enrollment lists Edward Kosoy as a member of this group (CMS data updated 2026-10-02).
- Montclair Hospital LLC21 clinicians in the group
Specialties
- Family Practiceprimary
- Internal Medicinealso
Other family doctors in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871561571 |
| 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