Quick answers
- Which hospitals does Nicholas Alexander work at?
- Medicare's official clinician data lists Nicholas Alexander at 2 hospitals: 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 Nicholas Alexander see patients?
- Medicare's clinician data lists 2 practice locations, including Mahwah, NJ. Call before your visit to confirm the address.
- What is Nicholas Alexander's specialty?
- Medicare lists Hand Surgery as the primary specialty, and also Orthopedic Surgery.
- Does Nicholas Alexander accept Medicare assignment?
- Medicare's clinician data says Nicholas Alexander may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Nicholas Alexander?
- (201) 818-4344, as listed in official Medicare / NPI Registry data.
- What is Nicholas Alexander's NPI number?
- 1972508240. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicholas Alexander works
Medicare's Facility Affiliation Data lists Nicholas Alexander 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
- Valley HospitalParamus, NJ · Acute Care Hospital · CCN 310012
Practice locations
Addresses where Nicholas Alexander is enrolled with Medicare (CMS data updated 2026-10-02).
- 400 Franklin Tpke, Suite 100Mahwah, NJ 07430 (201) 818‑4344
- 400 Franklin Turnpike, Suite 100Mahwah, NJ 07430
Specialties
- Hand Surgeryprimary
- Orthopedic Surgeryalso
Other hand surgeons in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1972508240 |
| 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