Julio J. Valentin Nieves, MD

Medicare activity in 2024

Official CMS public-use data for Julio J. Valentin Nieves, 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. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)43 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)23 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 services
4. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)13 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%
• Diabetes74%
• Chronic kidney disease57%
• Arthritis47%
• Heart failure39%

Hospitals where Julio J. Valentin Nieves works

Medicare's Facility Affiliation Data lists Julio J. Valentin Nieves 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
• Manati Medical Center Dr Otero LopezManati, PR · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 400114

Practice locations

Addresses where Julio J. Valentin Nieves is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Calle Jose D Candelas, Suite 203Manati, PR 00674 (787) 918‑0066

Group practices

Medicare enrollment lists Julio J. Valentin Nieves as a member of this group (CMS data updated October 2, 2026).

• Pci Group LLC6 clinicians in the group

Specialties

• Cardiovascular Disease (Cardiology)primary
• Interventional Cardiologyalso

Find other Cardiovascular Disease (Cardiology) doctors in Puerto Rico →

Other cardiologists in Manati

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

• Eduardo Partida Robles, MD
• Valentin Del Rio Santiago, MD
• Jaime G. Aponte Rodriguez, MD
• Jose E. Ramos, MD
• Ricardo L. Santiago, MD
• Juan C. Rivera Arce, MD
• Jose R. Melendez, MD
• Nelson R. Espinell Gonzalez, MD

All cardiologists in Manati →

Other clinicians in Pci Group LLC

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

• Valentin Del Rio Santiago, MD
• Nelson R. Espinell Gonzalez, MD
• Ricardo L. Santiago, MD
• Juan C. Rivera Arce, MD
• Maria D. Peguero Iguina

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