NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1629159645 MD.
Verify on CMS → Luis Diaz Barrios, MD.
Cardiovascular Disease Physician in Fajardo, 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 24,795 in Cardiovascular Disease 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
436
Medicare Part D claims · 140 beneficiaries · Cardiovascular Disease Physician avg: 3K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Luis Diaz Barrios, MD. filed 436 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Fajardo, Puerto Rico.
- 436
- Part D claims, 2023
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.
Luis Diaz Barrios, MD.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
436 Top 38% higher than 62% 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)
Luis Diaz Barrios, 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 Luis Diaz Barrios, MD.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
436 86% vs specialty avg
Specialty distribution in Puerto Rico
How Cardiovascular Disease 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 Cardiovascular Disease 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).
Luis Diaz Barrios, MD. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD. credentials at AVE. GENERAL VALERO #303, Fajardo, PR, 00738, with a listed phone of (787) 860-0005. NPI 1629159645 was issued on 10/17/2006.
Medicare Part D records for calendar year 2023 show 436 prescription claims written by this provider, covering 140 Medicare beneficiaries and totaling roughly $68K in drug spend.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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 | 1629159645 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | MD. |
| Gender | Male |
| NPI Issued | 10/17/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
436
Total Claims
$68K
Total Drug Cost
140
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 608
- Total Day Supply
- 17,552
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 70.3 years
- Avg HCC Risk Score
- 1.82
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Luis Diaz Barrios, MD. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
50 claims
- Losartan Potassium
Losartan Potassium
48 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
25 claims
- Amlodipine Besylate
Amlodipine Besylate
24 claims
- Atorvastatin Calcium
Atorvastatin Calcium
24 claims
- Ezetimibe 19
Ezetimibe
19 claims
- Carvedilol 17
Carvedilol
17 claims
- Indapamide 17
Indapamide
17 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 50 |
| Losartan Potassium | 48 |
| Rosuvastatin Calcium | 25 |
| Amlodipine Besylate | 24 |
| Atorvastatin Calcium | 24 |
| Ezetimibe | 19 |
| Carvedilol | 17 |
| Indapamide | 17 |
| Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide | 15 |
| Farxiga Dapagliflozin Propanediol | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Luis Diaz Barrios, MD. fits within the Cardiovascular Disease Physician landscape nationally.
24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Luis Diaz Barrios, MD.'s 436 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Diaz Barrios.
Dr. Jose Acevedo-Valles
MD
San Juan, PR
Dr. Gerardo Alayon Anta
M.D.
Ponce, PR
Dr. Edwin Alejandro
MD
Bayamon, PR
Dr. Angel Arroyo
MD
Rio Piedras, PR
Dr. Victor Arroyo
MD
Carolina, PR
Compare Cardiovascular Disease 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 Cardiovascular Disease 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
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How to Find a Doctor
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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 Luis Diaz Barrios, MD.'s specialty? ▼
Luis Diaz Barrios, MD. specializes in Cardiovascular Disease Physician and practices in Fajardo, Puerto Rico. Credentials: MD..
How much does Luis Diaz Barrios, MD. prescribe under Medicare Part D? ▼
In 2023, Luis Diaz Barrios, MD. wrote 436 Medicare Part D claims totaling $68K in drug costs for 140 beneficiaries.
Where is Luis Diaz Barrios, MD. located? ▼
Luis Diaz Barrios, MD. is located at AVE. GENERAL VALERO #303, Fajardo, PR, 00738. Phone: (787) 860-0005.
What is Luis Diaz Barrios, MD.'s NPI number? ▼
Luis Diaz Barrios, MD.'s National Provider Identifier (NPI) is 1629159645, issued on 10/17/2006.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Luis Diaz Barrios, MD. prescribe most often? ▼
Based on 2023 Medicare Part D data, Luis Diaz Barrios, MD.'s most frequently prescribed drugs include Eliquis, Losartan Potassium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Luis Diaz Barrios, MD. accept Medicare? ▼
Luis Diaz Barrios, MD. appears in CMS Medicare data with 436 Part D claims and 140 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Luis Diaz Barrios, MD.'s credentials? ▼
Luis Diaz Barrios, MD.'s NPI is 1629159645 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.