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Internal Medicine

Trinidad Mercado, MD

Works at hospitals in Cayey, PR · Puerto Rico

Summary

Dr. Trinidad Mercado, MD is an internal medicine doctor at Carretera 14 Interior, Bo Rincon, Cayey, PR 00737. Phone: (787) 434-1700. Accepts Medicare assignment. NPI 1548367972. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: Carretera 14 Interior, Bo Rincon, Cayey, PR 00737 · Directions
  • Phone: (787) 434‑1700
  • Medicare: Accepts Medicare assignment
  • Hospital: Hospital Menonita de Cayey
  • Group practice: Hospital Menonita de Cayey
  • Medical school: graduated 1982 (44 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Trinidad Mercado, 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 Trinidad Mercado accept Medicare assignment?
Yes. Medicare's clinician data says Trinidad Mercado 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 Trinidad Mercado's NPI number?
1548367972. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Trinidad Mercado works

Medicare's Facility Affiliation Data lists Trinidad Mercado 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 Trinidad Mercado is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Trinidad Mercado as a member of this group (CMS data updated October 2, 2026).

  • Hospital Menonita de Cayey58 clinicians in the group

Specialties

Find other Internal Medicine doctors in Puerto Rico →

Other internal medicine doctors in Cayey

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

All internal medicine doctors in Cayey →

Other clinicians in Hospital Menonita de Cayey

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548367972
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians