Quick answers
- Does Ivan A. Rivera Nazario accept Medicare assignment?
- Medicare's clinician data says Ivan A. Rivera Nazario may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Ivan A. Rivera Nazario's NPI number?
- 1124554449. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ivan A. Rivera Nazario works
Medicare's Facility Affiliation Data lists Ivan A. Rivera Nazario at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Doctors' Center Hospital San JuanSanturce, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400006
- Hospital Pavia CaguasCaguas, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400120
Practice locations
Addresses where Ivan A. Rivera Nazario is enrolled with Medicare (CMS data updated October 2, 2026).
- 1507 Ave Juan Ponce De Leon, Suite 205San Juan, PR 00909 (787) 579‑3028
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1124554449 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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