Mariela R. Martinez-Rivera, MD

Medicare activity in 2024

Official CMS public-use data for Mariela R. Martinez-Rivera, 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. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)26 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)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 cholesterol75%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)68%
• Chronic kidney disease53%
• Arthritis50%
• Diabetes39%

Hospitals where Mariela R. Martinez-Rivera works

Medicare's Facility Affiliation Data lists Mariela R. Martinez-Rivera 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.

• Hospital Episcopal San Lucas IIPonce, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400044

Practice locations

Addresses where Mariela R. Martinez-Rivera is enrolled with Medicare (CMS data updated October 2, 2026).

• 1034 Ave HostosPonce, PR 00716
• 909 Ave Tito Castro, Suite 710Ponce, PR 00716 (787) 284‑3333

Group practices

Medicare enrollment lists Mariela R. Martinez-Rivera as a member of this group (CMS data updated October 2, 2026).

• Med Centro Inc66 clinicians in the group

Specialties

• Urologyprimary

Find other Urology doctors in Puerto Rico →

Other urologists in Ponce

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

• Claudio P. Bernaschina Bobadilla, MD
• Federico A. Corica, MD
• Alberto P. Corica Guinle, MD
• Gilberto Ruiz Deya, MD
• Adrian A. Santana Paracchini, MD
• Giovanni A. Gonzalez Albo, MD
• Javier A. Castillo, MD
• Richard Baez Tellado, MD

All urologists in Ponce →

Other clinicians in Med Centro Inc

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

• Janitza Delgado Moura, MD
• Pilar E. Silva Melendez, MD
• Jason Jimenez Ocasio, MD
• Yamitza Cordero-Ferrer, MD
• Catalina M. Frau Nicole, MD
• Nydia Garcia, 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