Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Argyrios Nikolaidis, MD

Works at hospitals in Livingston, NJ · Hamilton, NJ · Paramus, NJ · New Jersey

Summary

Argyrios Nikolaidis, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Livingston, NJ, Hamilton, NJ and Paramus, NJ. NPI 1770163974. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Argyrios Nikolaidis, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
5Years since medical school (graduated 2021)
MaleGender (as listed)
RWJBH Emergency Medicine Associates, LLCGroup practice

Quick answers

Which hospitals does Argyrios Nikolaidis work at?
Medicare's official clinician data lists Argyrios Nikolaidis at 3 hospitals: Cooperman Barnabas Medical Center, Robert Wood Johnson University Hospital at Hamilton and Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Argyrios Nikolaidis see patients?
Medicare's clinician data lists 4 practice locations, including Hamilton, NJ, Elizabeth, NJ and Lakewood, NJ. Call before your visit to confirm the address.
What is Argyrios Nikolaidis's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Argyrios Nikolaidis accept Medicare assignment?
Yes. Medicare's clinician data says Argyrios Nikolaidis 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 Argyrios Nikolaidis?
(609) 586-7900, as listed in official Medicare / NPI Registry data.
What is Argyrios Nikolaidis's NPI number?
1770163974. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Argyrios Nikolaidis works

Medicare's Facility Affiliation Data lists Argyrios Nikolaidis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Argyrios Nikolaidis is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Argyrios Nikolaidis as a member of this group (CMS data updated 2026-10-02).

  • RWJBH Emergency Medicine Associates, LLC848 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Hamilton

Clinicians with the same Medicare primary specialty in Hamilton, NJ — not a recommendation.

All internal medicine doctors in Hamilton →

Clinician information

CredentialMD
Graduation year2021
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770163974
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians