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Internal Medicine

Neophytos Zambas, DO

Works at hospitals in Livingston, NJ · Rahway, NJ · New Jersey

Summary

Dr. Neophytos Zambas, DO is an internal medicine doctor at 865 Stone St, Rahway, NJ 07065. Phone: (732) 381-4200. Accepts Medicare assignment. NPI 1992357503. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Neophytos Zambas, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Neophytos Zambas accept Medicare assignment?
Yes. Medicare's clinician data says Neophytos Zambas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Neophytos Zambas's NPI number?
1992357503. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Neophytos Zambas works

Medicare's Facility Affiliation Data lists Neophytos Zambas at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Neophytos Zambas is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Neophytos Zambas as a member of this group (CMS data updated October 2, 2026).

  • RWJBH Observation Associates LLC1,008 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Rahway

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

All internal medicine doctors in Rahway →

Other clinicians in RWJBH Observation Associates LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992357503
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians