Mariana Mercader Perez, MD

Medicare activity in 2024

Official CMS public-use data for Mariana Mercader Perez, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)52 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)18 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 cholesterol68%
• Diabetes59%
• Chronic kidney disease53%
• Heart failure53%
• Arthritis47%

Hospitals where Mariana Mercader Perez works

Medicare's Facility Affiliation Data lists Mariana Mercader Perez 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.

• Bayamon Medical CenterBayamon, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400032
• Doctors' Center BayamonBayamon, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400102

Practice locations

Addresses where Mariana Mercader Perez is enrolled with Medicare (CMS data updated October 2, 2026).

• 2 Nd Bayamon Health CtrBayamon, PR 00961
• Calle J, 9 Ext Hermanas DavilaBayamon, PR 00960 (787) 622‑5432
• Calle Manuel F Rossi Esq Isabel II, Bayamon Medical Center 2nd FlBayamon, PR 00961

Group practices

Medicare enrollment lists Mariana Mercader Perez as a member of this group (CMS data updated October 2, 2026).

• Pro Health Clinical Services LLC20 clinicians in the group

Specialties

• Critical Care (Intensivists)primary
• Pulmonary Diseasealso

Find other Critical Care (Intensivists) doctors in Puerto Rico →

Other critical care doctors in Puerto Rico

Clinicians with the same Medicare primary specialty in Puerto Rico — not a recommendation.

• Stephanie Rivera-Rivera, MD
• Biomaris Medina Rivera, MD
• Gerald L. Marin Garcia, MD
• Maria A. Uzcategui, MD
• Vanessa Fonseca Ferrer, MD
• Kelvin X. Rivera Manzano, MD
• Hiram Maldonado Quintana, MD
• Andres I. Velazquez Garcia, MD

All critical care doctors in Puerto Rico →

Other clinicians in Pro Health Clinical Services LLC

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

• Giovanna B. Rodriguez Figueroa, MD
• Angel L. Comulada Rivera, MD
• Stefano Coppola-Fasick, MD
• Vanessa Vando Rivera, MD
• Kiaraliz Cruz-Montero
• Marlene Farinacci Vilaro, 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