2026 NPPES data General Practice Physician NPI 1245288042 M.D.
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IVAN IRIZARRY ARROYO, M.D.

General Practice Physician in CABO ROJO, 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
8K
Medicare Part D claims · 230 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$73.87
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

IVAN IRIZARRY ARROYO, M.D. filed 7,727 Medicare Part D claims in 2023 as a General Practice Physician in CABO ROJO, Puerto Rico, prescribing 88% generic.

8K
Part D claims, 2023
88%
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.

IVAN IRIZARRY ARROYO, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

7,727 Top 3% higher than 97% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 certification likely (heuristic — not verified)

IVAN IRIZARRY ARROYO, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 IVAN IRIZARRY ARROYO, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/04/2006

NPI 1245288042

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

7,727 169% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Puerto Rico

How General Practice Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

General Practice Physician share within Puerto Rico

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

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
General Practice Physician ABMS/AOA estimate

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

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).

IVAN IRIZARRY ARROYO, M.D. appears in the CMS NPPES registry as a General Practice Physician provider holding M.D. credentials at 108 CALLE MUNOZ RIVERA, CABO ROJO, PR, 00623, with a listed phone of (787) 851-2025. NPI 1245288042 was issued on 05/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what IRIZARRY ARROYO 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 7,727 prescription claims written by this provider, covering 230 Medicare beneficiaries and totaling roughly $468K in drug spend, split 12% brand-name and 88% 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

108 CALLE MUNOZ RIVERA
CABO ROJO, PR 00623

Provider Details

NPI 1245288042
Specialty General Practice Physician
Credentials M.D.
Gender Male
NPI Issued 05/04/2006

Hospital and facility affiliations

Facilities where IVAN IRIZARRY ARROYO, M.D. 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.

MIGRANT HEALTH CENTER WESTERN REGION,INC
GUANICA, 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 IVAN IRIZARRY ARROYO, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$74

Largest payer

GlaxoSmithKline, LLC.

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 · Typical

IVAN IRIZARRY ARROYO, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 7,727 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.

7,727
Total Claims
$468K
Total Drug Cost
230
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,512
Total Day Supply
365,068
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$381K
Generic Drug Cost
$82K
Antibiotic Claims
52

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
1.32
Gender Split
49% female / 51% male
Age Distribution
<65: 28, 65-74: 121, 75-84: 61, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

What IVAN IRIZARRY ARROYO, M.D. 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
Famotidine
554
Gabapentin
518
Simvastatin
317
Omeprazole
282
Levothyroxine Sodium
239
Atorvastatin Calcium
232
Alendronate Sodium
225
Metformin Hcl
210
Losartan Potassium
203
Lisinopril
188

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

General Practice Physician Overview

How IVAN IRIZARRY ARROYO, M.D. fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

IVAN IRIZARRY ARROYO, M.D.'s 7,727 claims are above the specialty average of 2,872.

Nearby General Practice Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as IRIZARRY ARROYO.

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is IVAN IRIZARRY ARROYO, M.D.'s specialty?
IVAN IRIZARRY ARROYO, M.D. specializes in General Practice Physician and practices in CABO ROJO, Puerto Rico. Credentials: M.D..
How much does IVAN IRIZARRY ARROYO, M.D. prescribe under Medicare Part D?
In 2023, IVAN IRIZARRY ARROYO, M.D. wrote 7,727 Medicare Part D claims totaling $468K in drug costs for 230 beneficiaries.
Where is IVAN IRIZARRY ARROYO, M.D. located?
IVAN IRIZARRY ARROYO, M.D. is located at 108 CALLE MUNOZ RIVERA, CABO ROJO, PR, 00623. Phone: (787) 851-2025.
What is IVAN IRIZARRY ARROYO, M.D.'s NPI number?
IVAN IRIZARRY ARROYO, M.D.'s National Provider Identifier (NPI) is 1245288042, issued on 05/04/2006.
Does IVAN IRIZARRY ARROYO, M.D. prescribe more brand-name or generic drugs?
IVAN IRIZARRY ARROYO, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $381K in brand drug costs.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does IVAN IRIZARRY ARROYO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, IVAN IRIZARRY ARROYO, M.D.'s most frequently prescribed drugs include Famotidine, Gabapentin, Simvastatin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does IVAN IRIZARRY ARROYO, M.D. accept Medicare?
IVAN IRIZARRY ARROYO, M.D. appears in CMS Medicare data with 7,727 Part D claims and 230 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify IVAN IRIZARRY ARROYO, M.D.'s credentials?
IVAN IRIZARRY ARROYO, M.D.'s NPI is 1245288042 with credentials M.D.. 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.
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