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Gastroenterology

Frank Ruiz, MD

Works at hospitals in Passaic, NJ · New Jersey

Summary

Frank Ruiz, MD (Gastroenterology) is listed by Medicare at 1 hospital in Passaic, NJ. NPI 1417967019. 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 Frank Ruiz, 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
33Years since medical school (graduated 1993)
MaleGender (as listed)
Gastroenterology Associates of New Jersey LLCGroup practice

Quick answers

Which hospitals does Frank Ruiz work at?
Medicare's official clinician data lists Frank Ruiz at 1 hospital: St Mary's General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Frank Ruiz see patients?
Medicare's clinician data lists 4 practice locations, including Toms River, NJ, Wayne, NJ and Rutherford, NJ. Call before your visit to confirm the address.
What is Frank Ruiz's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Frank Ruiz accept Medicare assignment?
Yes. Medicare's clinician data says Frank Ruiz 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 Frank Ruiz?
(732) 281-1590, as listed in official Medicare / NPI Registry data.
What is Frank Ruiz's NPI number?
1417967019. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Frank Ruiz works

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

Group practices

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

  • Gastroenterology Associates of New Jersey LLC80 clinicians in the group

Specialties

Find other Gastroenterology doctors in New Jersey →

Other gastroenterologists in Toms River

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

All gastroenterologists in Toms River →

Clinician information

CredentialMD
Graduation year1993
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417967019
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