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Internal Medicine

Yolanda Sierra Quinones, MD

Sees patients in Toa Baja, PR · Puerto Rico

Summary

Dr. Yolanda Sierra Quinones, MD is an internal medicine doctor at Y35 Ave Blvd Monroig, Toa Baja, PR 00949. Phone: (787) 795-6320. Accepts Medicare assignment. NPI 1881688778. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: Y35 Ave Blvd Monroig, Toa Baja, PR 00949 · Directions (1 more location)
  • Phone: (787) 795‑6320
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 1977 (49 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Yolanda Sierra Quinones, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Yolanda Sierra Quinones accept Medicare assignment?
Yes. Medicare's clinician data says Yolanda Sierra Quinones accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Yolanda Sierra Quinones's NPI number?
1881688778. 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 Yolanda Sierra Quinones is enrolled with Medicare (CMS data updated October 2, 2026).

  • Y35 Ave Blvd MonroigToa Baja, PR 00949 (787) 795‑6320
  • Y35 Blvd Monroig LevittownToa Baja, PR 00949

Specialties

Find other Internal Medicine doctors in Puerto Rico →

Other internal medicine doctors in Puerto Rico

Clinicians with the same Medicare primary specialty in Puerto Rico — not a recommendation.

All internal medicine doctors in Puerto Rico →

Clinician information

CredentialMD
Graduation year1977 (49 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881688778
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians