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

Internal Medicine

Pedro J. Monroig Quiles, MD

Works at hospitals in San Juan, PR · Puerto Rico

Summary

Dr. Pedro J. Monroig Quiles, MD is an internal medicine doctor at 735 Ave Ponce De Leon, San Juan, PR 00917. Phone: (787) 758-7761. Accepts Medicare assignment. In 2024, Pedro J. Monroig Quiles had 91 Original Medicare patients and 329 services. NPI 1639152499. 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: 735 Ave Ponce De Leon, San Juan, PR 00917 · Directions
  • Phone: (787) 758‑7761
  • Medicare: Accepts Medicare assignment
  • Hospital: Auxilio Mutuo Hospital
  • Medical school: graduated 1981 (45 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Pedro J. Monroig Quiles, 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 Pedro J. Monroig Quiles accept Medicare assignment?
Yes. Medicare's clinician data says Pedro J. Monroig Quiles 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 Pedro J. Monroig Quiles see?
In 2024, CMS data shows 91 Original Medicare patients and 329 services for Pedro J. Monroig Quiles. This counts Original Medicare only and measures volume, not quality.
What is Pedro J. Monroig Quiles's NPI number?
1639152499. 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 Pedro J. Monroig Quiles, 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 patients91
Services billed to Medicare329
Different services or procedures10
Participating Medicare providerYes
Average age of these patients77

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)176 services
  2. Test to measure rate of airflow (94375)101 services
  3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)16 services
  4. Test to examine how well the lungs exchange gases (94729)11 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes68%
  • Asthma67%
  • Arthritis48%
  • Chronic kidney disease33%

Hospitals where Pedro J. Monroig Quiles works

Medicare's Facility Affiliation Data lists Pedro J. Monroig Quiles 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 Pedro J. Monroig Quiles is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Puerto Rico →

Other internal medicine doctors in San Juan

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

All internal medicine doctors in San Juan →

Clinician information

CredentialMD
Graduation year1981 (45 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639152499
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