Quick answers
- Where does Nelson G. Castillo Rivera see patients?
- Medicare's clinician data lists 2 practice locations, including Caguas, PR and Anasco, PR. Call before your visit to confirm the address.
- What is Nelson G. Castillo Rivera's specialty?
- Medicare lists Physical Medicine and Rehabilitation as the primary specialty.
- Does Nelson G. Castillo Rivera accept Medicare assignment?
- Medicare's clinician data says Nelson G. Castillo Rivera may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Nelson G. Castillo Rivera's NPI number?
- 1568097376. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Nelson G. Castillo Rivera is enrolled with Medicare (CMS data updated 2026-10-02).
- PO BoxCaguas, PR 00726
- PO Box, Suite 409Anasco, PR 00610
Specialties
Find other Physical Medicine and Rehabilitation doctors in Puerto Rico →
Other rehabilitation doctors in Caguas
Clinicians with the same Medicare primary specialty in Caguas, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | San Juan Bautista School Of Medicine |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1568097376 |
| 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
- 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