Quick answers
- Does Isamuel J. Santos Roales accept Medicare assignment?
- Yes. Medicare's clinician data says Isamuel J. Santos Roales accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Isamuel J. Santos Roales see?
- In 2024, CMS data shows 43 Original Medicare patients and 88 services for Isamuel J. Santos Roales. This counts Original Medicare only and measures volume, not quality.
- What is Isamuel J. Santos Roales's NPI number?
- 1477990133. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Isamuel J. Santos Roales, 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.
| Original Medicare patients | 43 |
|---|---|
| Services billed to Medicare | 88 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)34 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)12 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)11 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%
- Diabetes72%
- Chronic kidney disease49%
- Ischemic heart disease40%
- Arthritis37%
Hospitals where Isamuel J. Santos Roales works
Medicare's Facility Affiliation Data lists Isamuel J. Santos Roales 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 Menonita de CayeyCayey, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400013
- Hospital Universitario de AdultosRio Piedras, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400061
Practice locations
Addresses where Isamuel J. Santos Roales is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 ER Piso, Bo. Monacillos Centro Medico De Puerto RicRio Piedras, PR 00935 (787) 754‑8500
- Ave 65 Infanteria Km 8 Hm, 3 R.d.c.m. Grp Med Intrna HacCarolina, PR 00984 (787) 757‑6420
- Bo Monacillos Centro Medico De Puerto, Hospital Universitario De AdultosRio Piedras, PR 00935 (787) 754‑0101
- Calle Baldorioty Edificio, Suite 7Cayey, PR 00736 (787) 738‑6444
Group practices
Medicare enrollment lists Isamuel J. Santos Roales as a member of this group (CMS data updated October 2, 2026).
- Recinto de Ciencias Medicas247 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Puerto Rico →
Other cardiologists in Rio Piedras
Clinicians with the same Medicare primary specialty in Rio Piedras, PR — not a recommendation.
Other clinicians in Recinto de Ciencias Medicas
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477990133 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians