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Internal Medicine

Maritza Melendez Nieves, MD

Sees patients in Fajardo, PR · Puerto Rico

Summary

Dr. Maritza Melendez Nieves, MD is an internal medicine doctor at 302 Ave General Valero, Fajardo, PR 00738. Phone: (787) 801-6341. Accepts Medicare assignment. NPI 1295775856. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 302 Ave General Valero, Fajardo, PR 00738 · Directions
  • Phone: (787) 801‑6341
  • Medicare: Accepts Medicare assignment
  • Medical school: University Of Puerto Rico School Of Medicine · graduated 1989 (37 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Maritza Melendez Nieves, 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 Maritza Melendez Nieves accept Medicare assignment?
Yes. Medicare's clinician data says Maritza Melendez Nieves 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 Maritza Melendez Nieves's NPI number?
1295775856. 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 Maritza Melendez Nieves is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Puerto Rico →

Other internal medicine doctors in Fajardo

Clinicians with the same Medicare primary specialty in Fajardo, PR — not a recommendation.

All internal medicine doctors in Fajardo →

Clinician information

CredentialMD
Medical schoolUniversity Of Puerto Rico School Of Medicine
Graduation year1989 (37 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1295775856
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