Alejandro A. Porrata Nieva, MD

Medicare activity in 2024

Official CMS public-use data for Alejandro A. Porrata Nieva, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)118 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)51 services
3. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)49 services
4. Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level (64484)47 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)24 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%
• Arthritis75%
• Diabetes62%
• Chronic kidney disease30%
• Osteoporosis27%

Hospitals where Alejandro A. Porrata Nieva works

Medicare's Facility Affiliation Data lists Alejandro A. Porrata Nieva 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.

• Doctors' Center Hospital San JuanSanturce, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400006

Practice locations

Addresses where Alejandro A. Porrata Nieva is enrolled with Medicare (CMS data updated October 2, 2026).

• 1395 San Rafael Apdo, Suite 11338San Juan, PR 00910 (787) 766‑7070

Group practices

Medicare enrollment lists Alejandro A. Porrata Nieva as a member of this group (CMS data updated October 2, 2026).

• Medicos Especializados de San Juan4 clinicians in the group

Specialties

• Interventional Pain Managementprimary
• Pain Managementalso
• Physical Medicine and Rehabilitationalso

Find other Interventional Pain Management doctors in Puerto Rico →

Other interventional pain specialists in San Juan

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

• Jan J. Kraemer, MD
• Cristina I. Sepulveda Alamo, MD
• Carlos A. Buxo Tirado, MD

All interventional pain specialists in San Juan →

Other clinicians in Medicos Especializados de San Juan

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

• Giovanni Ramirez Arroyo, MD
• Jean Gallardo-Varela, MD
• Jorge Caceres, 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