Quick answers
- Which hospitals does Catherine Nielsen work at?
- Medicare's official clinician data lists Catherine Nielsen at 3 hospitals: Centrastate Medical Center, Englewood Hospital and Medical Center and Newark Beth Israel Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Catherine Nielsen see patients?
- Medicare's clinician data lists 3 practice locations, including East Orange, NJ, Belleville, NJ and Freehold, NJ. Call before your visit to confirm the address.
- What is Catherine Nielsen's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Catherine Nielsen accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine Nielsen 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 Catherine Nielsen?
- (862) 520-3104, as listed in official Medicare / NPI Registry data.
- What is Catherine Nielsen's NPI number?
- 1245916782. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Catherine Nielsen works
Medicare's Facility Affiliation Data lists Catherine Nielsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Centrastate Medical CenterFreehold, NJ · Acute Care Hospital · CCN 310111
- Englewood Hospital and Medical CenterEnglewood, NJ · Acute Care Hospital · CCN 310045
- Newark Beth Israel Medical CenterNewark, NJ · Acute Care Hospital · CCN 310002
Practice locations
Addresses where Catherine Nielsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 310 Central Ave, Suite 100East Orange, NJ 07018 (862) 520‑3104
- 36 Newark Ave, Suite 300Belleville, NJ 07109 (973) 759‑6896
- 901 W Main StFreehold, NJ 07728 (732) 431‑2000
Group practices
Medicare enrollment lists Catherine Nielsen as a member of these groups (CMS data updated 2026-10-02).
- Medical Associates of Englewood PC540 clinicians in the group
- Freehold Hospitalists, LLC6 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in East Orange
Clinicians with the same Medicare primary specialty in East Orange, NJ — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245916782 |
| 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