Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Luis R. Santos Lopez, MD

Sees patients in Gurabo, PR · Puerto Rico

Summary

Dr. Luis R. Santos Lopez, MD is an internal medicine doctor at 3 Urb Los Maestros, Gurabo, PR 00778. Accepts Medicare assignment. NPI 1336207224. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3 Urb Los Maestros, Gurabo, PR 00778 · Directions (1 more location)
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 1978 (48 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Luis R. Santos Lopez, 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 Luis R. Santos Lopez accept Medicare assignment?
Yes. Medicare's clinician data says Luis R. Santos Lopez 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 Luis R. Santos Lopez's NPI number?
1336207224. 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 Luis R. Santos Lopez is enrolled with Medicare (CMS data updated October 2, 2026).

  • 3 Urb Los MaestrosGurabo, PR 00778
  • PO Box, Suite 152Gurabo, PR 00778

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 year1978 (48 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336207224
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