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Internal Medicine

Luz End Martinez Martinez, MD

Works at hospitals in San German, PR · Puerto Rico

Summary

Dr. Luz End Martinez Martinez, MD is an internal medicine doctor at 84 Calle Angel G Martinez, Sabana Grande, PR 00637. Phone: (787) 873-4100. Accepts Medicare assignment. In 2024, Luz End Martinez Martinez had 11 Original Medicare patients and 32 services. NPI 1265436794. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 84 Calle Angel G Martinez, Sabana Grande, PR 00637 · Directions (1 more location)
  • Phone: (787) 873‑4100
  • Medicare: Accepts Medicare assignment
  • Hospital: Hospital de la Concepcion
  • Medical school: graduated 1981 (45 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Luz End Martinez Martinez, 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 Luz End Martinez Martinez accept Medicare assignment?
Yes. Medicare's clinician data says Luz End Martinez Martinez 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.
How many Medicare patients does Luz End Martinez Martinez see?
In 2024, CMS data shows 11 Original Medicare patients and 32 services for Luz End Martinez Martinez. This counts Original Medicare only and measures volume, not quality.
What is Luz End Martinez Martinez's NPI number?
1265436794. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Luz End Martinez Martinez, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients11
Services billed to Medicare32
Different services or procedures2
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)31 services

Hospitals where Luz End Martinez Martinez works

Medicare's Facility Affiliation Data lists Luz End Martinez Martinez 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.

Practice locations

Addresses where Luz End Martinez Martinez is enrolled with Medicare (CMS data updated October 2, 2026).

  • 84 Calle Angel G MartinezSabana Grande, PR 00637 (787) 873‑4100
  • Calle Angel G Martinez, Suite 84Sabana Grande, PR 00637

Specialties

Find other Internal Medicine doctors in Puerto Rico →

Other internal medicine doctors in Sabana Grande

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

All internal medicine doctors in Sabana Grande →

Clinician information

CredentialMD
Graduation year1981 (45 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265436794
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians