Quick answers
- Where does Elsie Negron Rivera see patients?
- Medicare's clinician data lists 1 practice location in Guanica, PR. Call before your visit to confirm the address.
- What is Elsie Negron Rivera's specialty?
- Medicare lists General Practice as the primary specialty.
- Does Elsie Negron Rivera accept Medicare assignment?
- Yes. Medicare's clinician data says Elsie Negron Rivera 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 Elsie Negron Rivera?
- (787) 821-3377, as listed in official Medicare / NPI Registry data.
- What is Elsie Negron Rivera's NPI number?
- 1902901374. 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 Elsie Negron Rivera is enrolled with Medicare (CMS data updated 2026-10-02).
- Bo Montalva, 23 EnsenadaGuanica, PR 00647 (787) 821‑3377
Group practices
Medicare enrollment lists Elsie Negron Rivera as a member of this group (CMS data updated 2026-10-02).
- Migrant Health Center Western Region, Inc48 clinicians in the group
Specialties
- General Practiceprimary
Other general practitioners in Guanica
Clinicians with the same Medicare primary specialty in Guanica, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902901374 |
| 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