2026 NPPES data Registered Nurse NPI 1639210081 CRNA
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MICHAEL DUFRENE, CRNA

Registered Nurse in LAKE CHARLES, Louisiana. 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.

What the federal data shows

MICHAEL DUFRENE, CRNA is a Registered Nurse in LAKE CHARLES, Louisiana, listed in the federal CMS National Provider Identifier registry.

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.

What does the federal data show about MICHAEL DUFRENE, CRNA?

Quality data not reported

NPI registry status

Active

Issued 02/09/2007

NPI 1639210081

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Specialty distribution in Louisiana

How Registered Nurse compares to other specialties among Louisiana providers

Louisiana providers

Registered Nurse share within Louisiana

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Louisiana

Specialty board-certification context

Estimated specialty board-certified rate — Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Registered Nurse) — 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).

MICHAEL DUFRENE, CRNA appears in the CMS NPPES registry as a Registered Nurse provider holding CRNA credentials at 424 W MCNEESE ST., LAKE CHARLES, LA, 70605, with a listed phone of (337) 478-0511. NPI 1639210081 was issued on 02/09/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUFRENE 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Registered Nurse providers operate outside Part D entirely.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

424 W MCNEESE ST.
LAKE CHARLES, LA 70605

Provider Details

NPI 1639210081
Specialty Registered Nurse
Credentials CRNA
Gender Male
NPI Issued 02/09/2007

Hospital and facility affiliations

Facilities where MICHAEL DUFRENE, CRNA 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.

LAKE CHARLES ANESTHESIOLOGY, APMC
LAKE CHARLES, LA
MID-LOUISIANA ANESTHESIA CONSULTANTS, APMC
ALEXANDRIA, LA

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

Registered Nurse Overview

How MICHAEL DUFRENE, CRNA fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

Nearby Registered Nurse Providers in Louisiana

Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as DUFRENE.

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL DUFRENE, CRNA's specialty?
MICHAEL DUFRENE, CRNA specializes in Registered Nurse and practices in LAKE CHARLES, Louisiana. Credentials: CRNA.
Where is MICHAEL DUFRENE, CRNA located?
MICHAEL DUFRENE, CRNA is located at 424 W MCNEESE ST., LAKE CHARLES, LA, 70605. Phone: (337) 478-0511.
What is MICHAEL DUFRENE, CRNA's NPI number?
MICHAEL DUFRENE, CRNA's National Provider Identifier (NPI) is 1639210081, issued on 02/09/2007.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
Does MICHAEL DUFRENE, CRNA accept Medicare?
MICHAEL DUFRENE, CRNA appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL DUFRENE, CRNA's credentials?
MICHAEL DUFRENE, CRNA's NPI is 1639210081 with credentials CRNA. 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.
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