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Internal Medicine

Julio Diaz, MD

Works at hospitals in Rahway, NJ · New Jersey

Summary

Julio Diaz, MD (Internal Medicine) is listed by Medicare at 1 hospital in Rahway, NJ. NPI 1831192129. 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 Julio Diaz, 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
36Years since medical school (graduated 1990)
Rutgers R W Johnson Medical School (cam/new Bruns/pisc)Medical school
MaleGender (as listed)
Robert Wood Johnson Medical Associates at Hamilton PAGroup practice

Quick answers

Which hospitals does Julio Diaz work at?
Medicare's official clinician data lists Julio Diaz at 1 hospital: Robert Wood Johnson University Hospital at Rahway. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Julio Diaz see patients?
Medicare's clinician data lists 2 practice locations, including Secaucus, NJ and Linden, NJ. Call before your visit to confirm the address.
What is Julio Diaz's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Julio Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Julio Diaz 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 Julio Diaz?
(201) 348-3636, as listed in official Medicare / NPI Registry data.
What is Julio Diaz's NPI number?
1831192129. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Julio Diaz works

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

Group practices

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

  • Robert Wood Johnson Medical Associates at Hamilton PA44 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Secaucus

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

All internal medicine doctors in Secaucus →

Clinician information

CredentialMD
Medical schoolRutgers R W Johnson Medical School (cam/new Bruns/pisc)
Graduation year1990
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831192129
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