Quick answers
- Does Michael J. Arruza Elias accept Medicare assignment?
- Yes. Medicare's clinician data says Michael J. Arruza Elias 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 Michael J. Arruza Elias see?
- In 2024, CMS data shows 57 Original Medicare patients and 207 services for Michael J. Arruza Elias. This counts Original Medicare only and measures volume, not quality.
- What is Michael J. Arruza Elias's NPI number?
- 1861473837. 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 Michael J. Arruza Elias, 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 | 57 |
|---|---|
| Services billed to Medicare | 207 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)51 services
- Diagnostic exam of nasal passages using an endoscope (31231)28 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)28 services
- Removal of impacted ear wax (69210)17 services
- Comprehensive hearing and speech recognition test (92557)15 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%
- Arthritis56%
- Chronic kidney disease32%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%
Practice locations
Addresses where Michael J. Arruza Elias is enrolled with Medicare (CMS data updated October 2, 2026).
- Catalinas Cinema, Suite 203Caguas, PR 00726 (787) 286‑1225
- PO BoxCaguas, PR 00726
Specialties
- Otolaryngologyprimary
Other ENT doctors in Puerto Rico
Clinicians with the same Medicare primary specialty in Puerto Rico — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861473837 |
| 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