NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1659827129
Verify on CMS → William Barnhill
Registered Nurse in Lafayette, 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 185,440 in Registered Nurse, 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
11
Medicare Part D claims · Registered Nurse avg: 1K
What the federal data shows
William Barnhill filed 11 Medicare Part D claims in 2024 as a Registered Nurse in Lafayette, Louisiana.
- 11
- Part D claims, 2024
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about William Barnhill
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1659827129), first enumerated 08/25/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 11 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Barnhill with other Registered Nurse providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Louisiana
- Tanya Abdul-Aziz, RN New Orleans, LA
- Jessica Achee, RN Denham Springs, LA
- Brenda Adams Shreveport, LA
- Glenn Adams, NP Clinton, LA
- James Adams Shreveport, LA
- Jessica Adams, NP New Orleans, LA
Other specialties in Lafayette: Case Manager/Care Coordinator (423) · Mental Health Counselor (417) · Family Nurse Practitioner (312) · Pharmacist (247)
CMS NPPES provider registry desk
NPI 1659827129 · Registered Nurse
NPI-10 · ENUM-MID · TAX-MEGA · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1659827129
- ENUM-MID 2016
- TAX-MEGA 185K Registered Nurse
- RX-TRACE 11
- BOOK-LIGHT 1,224 in Louisiana
- PHOTO-ENUM Gail Viviano · 2016
William Barnhill's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
11 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about William Barnhill?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
11 99% vs specialty avg
Specialty distribution in Louisiana
How Registered Nurse 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 Registered Nurse. 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).
Practice Address
Provider Details
| NPI | 1659827129 |
|---|---|
| Specialty | Registered Nurse |
| Gender | Male |
| NPI Issued | 08/25/2016 |
Hospital and facility affiliations
Facilities where William Barnhill 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.
Lafayette Health Ventures Inc
Lafayette, 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).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
11
Total Claims
$305
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11
- Total Day Supply
- 310
- Opioid Claims
- 11 (100.0% rate)
Patient Demographics
- Average Patient Age
- 79.7 years
- Avg HCC Risk Score
- 1.49
Registered Nurse Overview
How William Barnhill fits within the Registered Nurse landscape nationally.
185,440
Registered Nurse Providers in US
56
States with Registered Nurse
1,063
Avg Claims per Provider
William Barnhill's 11 claims are below the specialty average of 1,063.
Nationwide Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Barnhill, both outside Louisiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Registered Nurse Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Barnhill.
One of 1,224 Registered Nurse providers enrolled in Louisiana, 11 are shown on this page.
Kevin Adams
RN
New Orleans, LA
Skylar Adams
RN
Lafayette, LA
Maximus Agbaegbu
Metairie, LA
Barbara Aguillard
Duson, LA
Brooke Aguillard
REGISTERED NURSE
Lake Charles, LA
Compare Registered Nurse nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Barnhill's specialty? ▼
William Barnhill specializes in Registered Nurse and practices in Lafayette, Louisiana.
How much does William Barnhill prescribe under Medicare Part D? ▼
In 2024, William Barnhill wrote 11 Medicare Part D claims totaling $305 in drug costs for N/A beneficiaries.
Where is William Barnhill located? ▼
William Barnhill is located at 1103 KALISTE SALOOM RD, Lafayette, LA, 70508. Phone: (337) 988-5646.
What is William Barnhill's NPI number? ▼
William Barnhill's National Provider Identifier (NPI) is 1659827129, issued on 08/25/2016.
Does William Barnhill prescribe opioids? ▼
Yes, William Barnhill had 11 opioid claims in 2024 with an opioid prescribing rate of 100.0%.
How many Registered Nurse providers are there in the US? ▼
There are 185,440 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,063 Medicare Part D claims per year.
Does William Barnhill accept Medicare? ▼
William Barnhill appears in CMS Medicare data with 11 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Barnhill's credentials? ▼
William Barnhill's NPI is 1659827129. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.