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

Gastroenterology

Arun R. Mathew, MD

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

Summary

Arun R. Mathew, MD (Gastroenterology) is listed by Medicare at 2 hospitals in Rahway, NJ and Elizabeth, NJ. NPI 1265878185. 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 Arun R. Mathew, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
Rutgers New Jersey Medical SchoolMedical school
MaleGender (as listed)
Barnabas Health Medical Group PCGroup practice (+1 more)

Quick answers

Which hospitals does Arun R. Mathew work at?
Medicare's official clinician data lists Arun R. Mathew at 2 hospitals: Robert Wood Johnson University Hospital at Rahway and Trinitas Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Arun R. Mathew see patients?
Medicare's clinician data lists 2 practice locations, including Union, NJ and Bloomfield, NJ. Call before your visit to confirm the address.
What is Arun R. Mathew's specialty?
Medicare lists Gastroenterology as the primary specialty.
Does Arun R. Mathew accept Medicare assignment?
Yes. Medicare's clinician data says Arun R. Mathew 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 Arun R. Mathew?
(908) 851-2770, as listed in official Medicare / NPI Registry data.
What is Arun R. Mathew's NPI number?
1265878185. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Arun R. Mathew works

Medicare's Facility Affiliation Data lists Arun R. Mathew 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 Arun R. Mathew is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Arun R. Mathew as a member of these groups (CMS data updated 2026-10-02).

  • Barnabas Health Medical Group PC1,070 clinicians in the group
  • RF Ledon MD PC18 clinicians in the group

Specialties

Find other Gastroenterology doctors in New Jersey →

Other gastroenterologists in Union

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

All gastroenterologists in Union →

Clinician information

CredentialMD
Medical schoolRutgers New Jersey Medical School
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265878185
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