Quick answers
- Which hospitals does Guillermo A. Munoz work at?
- Medicare's official clinician data lists Guillermo A. Munoz at 1 hospital: Trinitas Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guillermo A. Munoz see patients?
- Medicare's clinician data lists 1 practice location in Elizabeth, NJ. Call before your visit to confirm the address.
- What is Guillermo A. Munoz's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Guillermo A. Munoz accept Medicare assignment?
- Yes. Medicare's clinician data says Guillermo A. Munoz 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 Guillermo A. Munoz?
- (908) 352-9556, as listed in official Medicare / NPI Registry data.
- What is Guillermo A. Munoz's NPI number?
- 1023071669. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guillermo A. Munoz works
Medicare's Facility Affiliation Data lists Guillermo A. Munoz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Trinitas Regional Medical CenterElizabeth, NJ · Acute Care Hospital · CCN 310027
Practice locations
Addresses where Guillermo A. Munoz is enrolled with Medicare (CMS data updated 2026-10-02).
- 824 Elizabeth AveElizabeth, NJ 07201 (908) 352‑9556
Group practices
Medicare enrollment lists Guillermo A. Munoz as a member of this group (CMS data updated 2026-10-02).
- Union Square Medical Associates, PC4 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Elizabeth
Clinicians with the same Medicare primary specialty in Elizabeth, NJ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023071669 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians