Lourdes E. Marrero Diaz, MD

Medicare activity in 2024

Official CMS public-use data for Lourdes E. Marrero Diaz, 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.

Most frequent services

1. Removal of tissue from wound, 20.0 sq cm or less (97597)283 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)28 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%
• Diabetes75%
• Chronic kidney disease68%
• Arthritis39%
• COPD39%

Hospitals where Lourdes E. Marrero Diaz works

Medicare's Facility Affiliation Data lists Lourdes E. Marrero Diaz 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.

• Auxilio Mutuo HospitalSan Juan, PR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 400016

Practice locations

Addresses where Lourdes E. Marrero Diaz is enrolled with Medicare (CMS data updated October 2, 2026).

• 715 Ave Ponce De LeonSan Juan, PR 00917
• 735 Ave Ponce De Leon, Suite 375San Juan, PR 00917 (787) 758‑2000

Group practices

Medicare enrollment lists Lourdes E. Marrero Diaz as a member of this group (CMS data updated October 2, 2026).

• Hospital Espanol Auxilio Mutuo de Puerto Rico, Inc.54 clinicians in the group

Specialties

• General Practiceprimary

Find other General Practice doctors in Puerto Rico →

Other general practitioners in San Juan

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

• Ivelisse A. Pena Jimeno, MD
• Gregorio Cortes-Maisonet, MD
• Carmen D. Sanchez Lopez, MD
• Ernie J. Canales Rivera, MD
• Francisco Pla Mendez, MD
• Grissel A. Villanueva Respeto, MD
• Alwin L. Torres Ortiz, MD
• Victor Gomez, MD

All general practitioners in San Juan →

Other clinicians in Hospital Espanol Auxilio Mutuo de Puerto Rico, Inc.

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

• Dalianie Nieves
• Maria E. Ramos Cortes, MD
• Ivelisse Rivera Borges, MD
• Jose Concepcion, MD
• Carlos R. Bachier, MD
• Adelba L. Torres-Lopez, MD

Clinician information

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