Quick answers
- Does Hiram Rivera Luna accept Medicare assignment?
- Yes. Medicare's clinician data says Hiram Rivera Luna 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 Hiram Rivera Luna see?
- In 2024, CMS data shows 293 Original Medicare patients and 790 services for Hiram Rivera Luna. This counts Original Medicare only and measures volume, not quality.
- What is Hiram Rivera Luna's NPI number?
- 1457470213. 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 Hiram Rivera Luna, 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 | 293 |
|---|---|
| Services billed to Medicare | 790 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Ultrasound study of arm or leg veins with compression and maneuvers (93970)65 services
- Complete ultrasound scan of joint (76881)57 services
- Dxa bone density measurement of hip, pelvis, spine (77080)50 services
- Ultrasound of leg arteries or artery grafts (93925)43 services
- Complete ultrasound scan of abdomen (76700)37 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%
- Diabetes67%
- Arthritis52%
- Chronic kidney disease44%
- Depression25%
Practice locations
Addresses where Hiram Rivera Luna is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 Calle Gautier BenitezCaguas, PR 00725 (787) 744‑5278
Group practices
Medicare enrollment lists Hiram Rivera Luna as a member of this group (CMS data updated October 2, 2026).
- Nuscan CSP3 clinicians in the group
Specialties
- Internal Medicineprimary
- Diagnostic Radiologyalso
- Nuclear Medicinealso
Other internal medicine doctors in Caguas
Clinicians with the same Medicare primary specialty in Caguas, PR — not a recommendation.
Other clinicians in Nuscan CSP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457470213 |
| 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
- 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