2026 NPPES data Internal Medicine Physician NPI 1053679092
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ARNALDO LUIS FREIRE-PEREZ

Internal Medicine Physician in SAN JUAN, Puerto Rico. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 279 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
67.0938/100
▼ 16 pts below national avg 83.1 · [object Object]
Industry payments
$342.07
14 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ARNALDO LUIS FREIRE-PEREZ reported a CMS MIPS final score of 67.0938/100 — below the 83.1 national average — and filed 1,142 Medicare Part D claims in 2023.

67.0938/100
MIPS score · -16 vs avg
1K
Part D claims, 2023
75%
generic prescribing
Likely
board-certified (heuristic)

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.

ARNALDO LUIS FREIRE-PEREZ's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

67 7th percentile higher than 7% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). This entry sits in this band. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ARNALDO LUIS FREIRE-PEREZ practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ARNALDO LUIS FREIRE-PEREZ?

Below national average

NPI registry status

Active

Issued 04/27/2012

NPI 1053679092

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,142 58% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

67.0938/100 16.006199999999993% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Puerto Rico

How Internal Medicine Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Internal Medicine Physician share within Puerto Rico

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Puerto Rico

Medicare quality performance — MIPS

ARNALDO LUIS FREIRE-PEREZ's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
67.0938/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 67.0938/100 vs national avg 83.1

0%100%National avg83%67.1%
MIPS final score (Internal Medicine Physician) — 67.0938/100 vs national avg 83.1

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).

ARNALDO LUIS FREIRE-PEREZ appears in the CMS NPPES registry as a Internal Medicine Physician provider at TORRE AUXILIO MUTUO SUITE 816, SAN JUAN, PR, 00917, with a listed phone of (787) 763-1025. NPI 1053679092 was issued on 04/27/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FREIRE-PEREZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,142 prescription claims written by this provider, covering 279 Medicare beneficiaries and totaling roughly $92K in drug spend, split 25% brand-name and 75% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 67.0938/100 for the 2023 performance year (Quality 88.7302, Cost 68.249), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

TORRE AUXILIO MUTUO SUITE 816
SAN JUAN, PR 00917

Provider Details

NPI 1053679092
Specialty Internal Medicine Physician
Gender Male
NPI Issued 04/27/2012

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

67.0938
Final Score
Avg: 83.1
88.7302
Quality
68.249
Cost
0
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ARNALDO LUIS FREIRE-PEREZ bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

HOSPITAL ESPANOL AUXILIO MUTUO DE PUERTO RICO, INC.
SAN JUAN, PR

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 ARNALDO LUIS FREIRE-PEREZ. Source: openpaymentsdata.cms.gov.

Total received

$342

Largest payer

Gilead Sciences, Inc.

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 · Above average

ARNALDO LUIS FREIRE-PEREZ — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 1,142 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.

1,142
Total Claims
$92K
Total Drug Cost
279
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,198
Total Day Supply
22,262
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$75K
Generic Drug Cost
$18K
Antibiotic Claims
27

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
2.01
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ARNALDO LUIS FREIRE-PEREZ prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Pantoprazole Sodium
219
Famotidine
102
Sodium Chloride
0.9 % Sodium Chloride
87
Midazolam Hcl
Midazolam Hcl/Pf
81
Fentanyl Citrate
Fentanyl Citrate/Pf
61
Lidocaine Hcl Viscous
Lidocaine Hcl
61
Prednisone
40
Omeprazole
38
Tacrolimus
35

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How ARNALDO LUIS FREIRE-PEREZ fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

ARNALDO LUIS FREIRE-PEREZ's 1,142 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as FREIRE-PEREZ.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ARNALDO LUIS FREIRE-PEREZ's specialty?
ARNALDO LUIS FREIRE-PEREZ specializes in Internal Medicine Physician and practices in SAN JUAN, Puerto Rico.
How much does ARNALDO LUIS FREIRE-PEREZ prescribe under Medicare Part D?
In 2023, ARNALDO LUIS FREIRE-PEREZ wrote 1,142 Medicare Part D claims totaling $92K in drug costs for 279 beneficiaries.
What is ARNALDO LUIS FREIRE-PEREZ's Medicare quality score?
ARNALDO LUIS FREIRE-PEREZ has a CMS MIPS Final Score of 67.0938/100 (Quality: 88.7302, Cost: 68.249). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ARNALDO LUIS FREIRE-PEREZ located?
ARNALDO LUIS FREIRE-PEREZ is located at TORRE AUXILIO MUTUO SUITE 816, SAN JUAN, PR, 00917. Phone: (787) 763-1025.
What is ARNALDO LUIS FREIRE-PEREZ's NPI number?
ARNALDO LUIS FREIRE-PEREZ's National Provider Identifier (NPI) is 1053679092, issued on 04/27/2012.
Does ARNALDO LUIS FREIRE-PEREZ prescribe more brand-name or generic drugs?
ARNALDO LUIS FREIRE-PEREZ's prescribing is 25% brand-name and 75% generic drugs by claim count, with $75K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does ARNALDO LUIS FREIRE-PEREZ prescribe most often?
Based on 2023 Medicare Part D data, ARNALDO LUIS FREIRE-PEREZ's most frequently prescribed drugs include Pantoprazole Sodium, Famotidine, Sodium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARNALDO LUIS FREIRE-PEREZ accept Medicare?
ARNALDO LUIS FREIRE-PEREZ appears in CMS Medicare data with 1,142 Part D claims and 279 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARNALDO LUIS FREIRE-PEREZ's credentials?
ARNALDO LUIS FREIRE-PEREZ's NPI is 1053679092. 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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