Quick answers
- Does Kelvin X. Rivera Manzano accept Medicare assignment?
- Yes. Medicare's clinician data says Kelvin X. Rivera Manzano 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 Kelvin X. Rivera Manzano see?
- In 2024, CMS data shows 22 Original Medicare patients and 111 services for Kelvin X. Rivera Manzano. This counts Original Medicare only and measures volume, not quality.
- What is Kelvin X. Rivera Manzano's NPI number?
- 1619226578. 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 Kelvin X. Rivera Manzano, 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 | 22 |
|---|---|
| Services billed to Medicare | 111 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Critical care, first 30-74 minutes (99291)67 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 cholesterol64%
- Diabetes64%
Hospitals where Kelvin X. Rivera Manzano works
Medicare's Facility Affiliation Data lists Kelvin X. Rivera Manzano 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 Pavia CaguasCaguas, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400120
- Hospital Universitario de AdultosRio Piedras, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400061
Practice locations
Addresses where Kelvin X. Rivera Manzano is enrolled with Medicare (CMS data updated October 2, 2026).
- Centro Medico De Puerto Rico Bo Mona, Hospital Universitario De AdultosRio Piedras, PR 00935 (787) 754‑0101
Group practices
Medicare enrollment lists Kelvin X. Rivera Manzano as a member of this group (CMS data updated October 2, 2026).
- Recinto de Ciencias Medicas247 clinicians in the group
Specialties
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.
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 | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619226578 |
| 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