Quick answers
- Does Gabriel J. Rivera Velazquez accept Medicare assignment?
- Yes. Medicare's clinician data says Gabriel J. Rivera Velazquez 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 Gabriel J. Rivera Velazquez see?
- In 2024, CMS data shows 49 Original Medicare patients and 100 services for Gabriel J. Rivera Velazquez. This counts Original Medicare only and measures volume, not quality.
- What is Gabriel J. Rivera Velazquez's NPI number?
- 1346436847. 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 Gabriel J. Rivera Velazquez, 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 | 49 |
|---|---|
| Services billed to Medicare | 100 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)22 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%
- Diabetes75%
- Chronic kidney disease65%
- Ischemic heart disease47%
- Heart failure47%
Hospitals where Gabriel J. Rivera Velazquez works
Medicare's Facility Affiliation Data lists Gabriel J. Rivera Velazquez 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.
- Auxilio Mutuo HospitalSan Juan, PR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 400016
- Doctors Center Hospital Carolina LLCCarolina, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400132
- Doctors' Center BayamonBayamon, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400102
Practice locations
Addresses where Gabriel J. Rivera Velazquez is enrolled with Medicare (CMS data updated October 2, 2026).
- Medical Ctr Adult Unit, 2 Carr 22 Bo MonacillosSan Juan, PR 00922 (787) 754‑0101
Specialties
- Interventional Radiologyprimary
Find other Interventional Radiology doctors in Puerto Rico →
Other interventional radiologists in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346436847 |
| 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