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Internal Medicine

Roger O. Saez, MD

Works at hospitals in Hackettstown, NJ · Livingston, NJ · Morristown, NJ · New Jersey

Summary

Roger O. Saez, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Hackettstown, NJ, Livingston, NJ and Morristown, NJ. NPI 1598118010. 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 Roger O. Saez, 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
11Years since medical school (graduated 2015)
MaleGender (as listed)
Practice Associates Medical GroupGroup practice

Quick answers

Which hospitals does Roger O. Saez work at?
Medicare's official clinician data lists Roger O. Saez at 3 hospitals: Ahs Hospital Corp, Cooperman Barnabas Medical Center and Morristown Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Roger O. Saez see patients?
Medicare's clinician data lists 1 practice location in Hackettstown, NJ. Call before your visit to confirm the address.
What is Roger O. Saez's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Roger O. Saez accept Medicare assignment?
Yes. Medicare's clinician data says Roger O. Saez 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 Roger O. Saez?
(908) 441-1161, as listed in official Medicare / NPI Registry data.
What is Roger O. Saez's NPI number?
1598118010. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Roger O. Saez works

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

Group practices

Medicare enrollment lists Roger O. Saez as a member of this group (CMS data updated 2026-10-02).

  • Practice Associates Medical Group1,408 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Hackettstown

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

All internal medicine doctors in Hackettstown →

Clinician information

CredentialMD
Graduation year2015
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598118010
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