NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1821080615 MD
Verify on CMS → Bryan Barrilleaux, MD
Emergency Medicine Physician in Lake Charles, Louisiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency Medicine 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
305
Medicare Part D claims · 25 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Bryan Barrilleaux, MD filed 305 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Lake Charles, Louisiana, prescribing 85% generic.
- 305
- Part D claims, 2023
- 85%
- generic prescribing
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.
Bryan Barrilleaux, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
305 Top 43% higher than 57% 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)
Bryan Barrilleaux, 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 Bryan Barrilleaux, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
305 13% vs specialty avg
Specialty distribution in Louisiana
How Emergency Medicine Physician compares to other specialties among Louisiana 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 Emergency Medicine 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).
Bryan Barrilleaux, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 643 S RYAN ST, Lake Charles, LA, 70601, with a listed phone of (337) 439-2000. NPI 1821080615 was issued on 08/17/2005.
Medicare Part D records for calendar year 2023 show 305 prescription claims written by this provider, covering 25 Medicare beneficiaries and totaling roughly $35K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 3.9%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1821080615 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/17/2005 |
Brand vs generic prescribing mix · Typical
Bryan Barrilleaux, MD - brand share 15.0%
Emergency Medicine Physician average
15% brand-name claims vs 85% generic, on 305 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.
305
Total Claims
$35K
Total Drug Cost
25
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 621
- Total Day Supply
- 17,947
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $31K
- Generic Drug Cost
- $5K
- Opioid Claims
- 12 (3.9% rate)
Patient Demographics
- Average Patient Age
- 69.4 years
- Avg HCC Risk Score
- 0.58
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bryan Barrilleaux, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Losartan Potassium
Losartan Potassium
29 claims
- Atorvastatin Calcium
Atorvastatin Calcium
17 claims
- Pravastatin Sodium
Pravastatin Sodium
17 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
17 claims
- Hydrochlorothiazide
Hydrochlorothiazide
15 claims
- Esomeprazole Magne…
Esomeprazole Magnesium
14 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
12 claims
- Invokana 11
Invokana
11 claims
| Drug | Claims |
|---|---|
| Losartan Potassium | 29 |
| Atorvastatin Calcium | 17 |
| Pravastatin Sodium | 17 |
| Rosuvastatin Calcium | 17 |
| Hydrochlorothiazide | 15 |
| Esomeprazole Magnesium | 14 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
| Invokana Canagliflozin | 11 |
| Janumet Sitagliptin Phos/Metformin Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Bryan Barrilleaux, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Bryan Barrilleaux, MD's 305 claims are below the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Barrilleaux.
Dr. Yousef Abdulla
MD
Kaplan, LA
Dr. Joseph Abraham
M.D.
Church Point, LA
Dr. Evangeline Abriam
MD
Metairie, LA
Dr. Alyce Adams
M.D.,CDE
West Monroe, LA
Dr. Angela Adams
M.D.
Alexandria, LA
Compare Emergency Medicine 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 Louisiana medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine 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.
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Frequently Asked Questions
What is Bryan Barrilleaux, MD's specialty? ▼
Bryan Barrilleaux, MD specializes in Emergency Medicine Physician and practices in Lake Charles, Louisiana. Credentials: MD.
How much does Bryan Barrilleaux, MD prescribe under Medicare Part D? ▼
In 2023, Bryan Barrilleaux, MD wrote 305 Medicare Part D claims totaling $35K in drug costs for 25 beneficiaries.
Where is Bryan Barrilleaux, MD located? ▼
Bryan Barrilleaux, MD is located at 643 S RYAN ST, Lake Charles, LA, 70601. Phone: (337) 439-2000.
What is Bryan Barrilleaux, MD's NPI number? ▼
Bryan Barrilleaux, MD's National Provider Identifier (NPI) is 1821080615, issued on 08/17/2005.
Does Bryan Barrilleaux, MD prescribe more brand-name or generic drugs? ▼
Bryan Barrilleaux, MD's prescribing is 15% brand-name and 85% generic drugs by claim count, with $31K in brand drug costs.
Does Bryan Barrilleaux, MD prescribe opioids? ▼
Yes, Bryan Barrilleaux, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 3.9%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Bryan Barrilleaux, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Bryan Barrilleaux, MD's most frequently prescribed drugs include Losartan Potassium, Atorvastatin Calcium, Pravastatin Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bryan Barrilleaux, MD accept Medicare? ▼
Bryan Barrilleaux, MD appears in CMS Medicare data with 305 Part D claims and 25 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bryan Barrilleaux, MD's credentials? ▼
Bryan Barrilleaux, MD's NPI is 1821080615 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.