NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1861473837 MD
Verify on CMS → Michael Arruza Elias, MD
Otolaryngology Physician in Caguas, Puerto Rico.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,895 in Otolaryngology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 602 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$124.99
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Arruza Elias, MD filed 1,552 Medicare Part D claims in 2023 as a Otolaryngology Physician in Caguas, Puerto Rico, prescribing 98% generic.
- 2K
- Part D claims, 2023
- 98%
- generic prescribing
- $124.99
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Michael Arruza Elias, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,552 Top 19% higher than 81% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Michael Arruza Elias, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Michael Arruza Elias, MD?
Quality data not reportedPrimary specialty
Otolaryngology Physician
Medicare Part D claims
1,552 205% vs specialty avg
Specialty distribution in Puerto Rico
How Otolaryngology Physician compares to other specialties among Puerto Rico providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Otolaryngology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Michael Arruza Elias, MD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD credentials at SEGUNDO NIVEL OFICINA #203, Caguas, PR, 00725, with a listed phone of (787) 286-1225. NPI 1861473837 was issued on 11/08/2005.
Medicare Part D records for calendar year 2023 show 1,552 prescription claims written by this provider, covering 602 Medicare beneficiaries and totaling roughly $79K in drug spend, split 2% brand-name and 98% generic by claim count, with an opioid prescribing rate of 0.7%.
Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1861473837 |
|---|---|
| Specialty | Otolaryngology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/08/2005 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Michael Arruza Elias, MD. Source: openpaymentsdata.cms.gov.
Total received
$125
Largest payer
GENZYME CORPORATION
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Michael Arruza Elias, MD - brand share 2.0%
Otolaryngology Physician average
2% brand-name claims vs 98% generic, on 1,552 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,552
Total Claims
$79K
Total Drug Cost
602
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,766
- Total Day Supply
- 42,975
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $44K
- Generic Drug Cost
- $35K
- Opioid Claims
- 11 (0.7% rate)
- Antibiotic Claims
- 182
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 114, 65-74: 259, 75-84: 197, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Arruza Elias, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
442 claims
- Azelastine Hcl 142
Azelastine Hcl
142 claims
- Fluocinolone Aceto… 142
Fluocinolone Acetonide Oil
142 claims
- Pantoprazole Sodium 111
Pantoprazole Sodium
111 claims
- Esomeprazole Magne… 100
Esomeprazole Magnesium
100 claims
- Amoxicillin-Clavul… 88
Amoxicillin-Clavulanate Potass
88 claims
- Prednisone 78
Prednisone
78 claims
- Famotidine 55
Famotidine
55 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 442 |
| Azelastine Hcl | 142 |
| Fluocinolone Acetonide Oil | 142 |
| Pantoprazole Sodium | 111 |
| Esomeprazole Magnesium | 100 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 88 |
| Prednisone | 78 |
| Famotidine | 55 |
| Clarithromycin | 38 |
| Clotrimazole-Betamethasone Clotrimazole/Betamethasone Dip | 35 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How Michael Arruza Elias, MD fits within the Otolaryngology Physician landscape nationally.
10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider
Michael Arruza Elias, MD's 1,552 claims are above the specialty average of 509.
Nearby Otolaryngology Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Arruza Elias.
Dr. Yadiel Alameda - Rios
M.D.
Manati, PR
Dr. Gustavo Almodovar-Mercado
M.D.
Mayaguez, PR
Dr. Hector Armaiz Perez
M.D.
Santurce, PR
Dr. Jose Arsuaga
MD
San Juan, PR
Dr. Jose Busquets
M.D.
San Juan, PR
Compare Otolaryngology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Puerto Rico medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Otolaryngology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Puerto Rico
Frequently Asked Questions
What is Michael Arruza Elias, MD's specialty? ▼
Michael Arruza Elias, MD specializes in Otolaryngology Physician and practices in Caguas, Puerto Rico. Credentials: MD.
How much does Michael Arruza Elias, MD prescribe under Medicare Part D? ▼
In 2023, Michael Arruza Elias, MD wrote 1,552 Medicare Part D claims totaling $79K in drug costs for 602 beneficiaries.
Where is Michael Arruza Elias, MD located? ▼
Michael Arruza Elias, MD is located at SEGUNDO NIVEL OFICINA #203, Caguas, PR, 00725. Phone: (787) 286-1225.
What is Michael Arruza Elias, MD's NPI number? ▼
Michael Arruza Elias, MD's National Provider Identifier (NPI) is 1861473837, issued on 11/08/2005.
Does Michael Arruza Elias, MD prescribe more brand-name or generic drugs? ▼
Michael Arruza Elias, MD's prescribing is 2% brand-name and 98% generic drugs by claim count, with $44K in brand drug costs.
Does Michael Arruza Elias, MD prescribe opioids? ▼
Yes, Michael Arruza Elias, MD had 11 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Otolaryngology Physician providers are there in the US? ▼
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does Michael Arruza Elias, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Arruza Elias, MD's most frequently prescribed drugs include Fluticasone Propionate, Azelastine Hcl, Fluocinolone Acetonide Oil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Arruza Elias, MD accept Medicare? ▼
Michael Arruza Elias, MD appears in CMS Medicare data with 1,552 Part D claims and 602 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Arruza Elias, MD's credentials? ▼
Michael Arruza Elias, MD's NPI is 1861473837 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.