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

Cardiovascular Disease (Cardiology)

Carlos R. Diaz, MD

Works at hospitals in San Juan, PR · Puerto Rico

Summary

Carlos R. Diaz, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 1 hospital in San Juan, PR. NPI 1093701062. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Carlos R. Diaz, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
39Years since medical school (graduated 1987)
University Of Puerto Rico School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Carlos R. Diaz work at?
Medicare's official clinician data lists Carlos R. Diaz at 1 hospital: Hospital Pavia Santurce. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Carlos R. Diaz see patients?
Medicare's clinician data lists 1 practice location in San Juan, PR. Call before your visit to confirm the address.
What is Carlos R. Diaz's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
Does Carlos R. Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Carlos R. Diaz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Carlos R. Diaz?
(787) 721-0525, as listed in official Medicare / NPI Registry data.
What is Carlos R. Diaz's NPI number?
1093701062. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Carlos R. Diaz works

Medicare's Facility Affiliation Data lists Carlos R. Diaz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Carlos R. Diaz is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Puerto Rico →

Other cardiologists in San Juan

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

All cardiologists in San Juan →

Clinician information

CredentialMD
Medical schoolUniversity Of Puerto Rico School Of Medicine
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093701062
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians