Quick answers
- Which hospitals does Ari Seidenstein work at?
- Medicare's official clinician data lists Ari Seidenstein at 5 hospitals: Chilton Medical Center, Hackensack University Medical Center, Holy Name Medical Center, St Joseph's University Medical Center Inc and Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ari Seidenstein see patients?
- Medicare's clinician data lists 5 practice locations, including Hewitt, NJ, Hackensack, NJ and Montvale, NJ. Call before your visit to confirm the address.
- What is Ari Seidenstein's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Ari Seidenstein accept Medicare assignment?
- Yes. Medicare's clinician data says Ari Seidenstein 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 Ari Seidenstein?
- (973) 320-6285, as listed in official Medicare / NPI Registry data.
- What is Ari Seidenstein's NPI number?
- 1902040546. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ari Seidenstein works
Medicare's Facility Affiliation Data lists Ari Seidenstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chilton Medical CenterPompton Plains, NJ · Acute Care Hospital · CCN 310017
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · CCN 310001
- Holy Name Medical CenterTeaneck, NJ · Acute Care Hospital · CCN 310008
- St Joseph's University Medical Center IncPaterson, NJ · Acute Care Hospital · CCN 310019
- Valley HospitalParamus, NJ · Acute Care Hospital · CCN 310012
Practice locations
Addresses where Ari Seidenstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 1900 Union Valley Rd, Suite 101Hewitt, NJ 07421 (973) 320‑6285
- 30 Prospect AveHackensack, NJ 07601
- 50 Craig RdMontvale, NJ 07645 (201) 639‑6620
- 650 From RdParamus, NJ 07652
- 7650 River RdNorth Bergen, NJ 07047
Group practices
Medicare enrollment lists Ari Seidenstein as a member of this group (CMS data updated 2026-10-02).
- Hackensack Meridian Health Medical Group - Specialty Care PC1,922 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — 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) | 1902040546 |
| 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