NPI registry status
Active
2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1588667364 M.D.
Verify on CMS → William Bailey, M.D.
Clinical Cardiac Electrophysiology Physician 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 1,668 in Clinical Cardiac Electrophysiology 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
1K
Medicare Part D claims · 326 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$120.63
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
William Bailey, M.D. filed 1,398 Medicare Part D claims in 2024 as a Clinical Cardiac Electrophysiology Physician in Lafayette, Louisiana, prescribing 85% generic.
- 1K
- Part D claims, 2024
- 85%
- generic prescribing
- $120.63
- industry payments (Sunshine Act)
- ≥79th
- 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 Bailey, M.D.
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 1588667364), first enumerated 05/24/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,398 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$120.63 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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.
CMS NPPES provider registry desk
NPI 1588667364 · Clinical Cardiac Electrophysiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1588667364
- ENUM-LEGACY 2005
- TAX-NARROW 1,668
- RX-MID 1,398
- BOOK-THIN 23 in Louisiana
- PHOTO-ENUM George Monir · 2005
William Bailey, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,398 ≥ 79th percentile 79% 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
◑
Board-eligible specialty (heuristic, not verified)
William Bailey, M.D. 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 William Bailey, M.D.?
Quality data not reportedPrimary specialty
Clinical Cardiac Electrophysiology Physician
Medicare Part D claims
1,398 16% vs specialty avg
Specialty distribution in Louisiana
How Clinical Cardiac Electrophysiology 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 Clinical Cardiac Electrophysiology 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).
Practice Address
Provider Details
| NPI | 1588667364 |
|---|---|
| Specialty | Clinical Cardiac Electrophysiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/24/2005 |
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 William Bailey, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$121
Largest payer
Edwards Lifesciences Corporation
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
William Bailey, M.D. - brand share 15.0%
Clinical Cardiac Electrophysiology Physician average
15% brand-name claims vs 85% generic, on 1,398 2024 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 2024.
1,398
Total Claims
$196K
Total Drug Cost
326
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,589.633
- Total Day Supply
- 106,576
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $183K
- Generic Drug Cost
- $13K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 74.5 years
- Avg HCC Risk Score
- 2.43
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 23, 65-74: 151, 75-84: 116, 85+: 36
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What William Bailey, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Metoprolol Succinate
Metoprolol Succinate
188 claims
- Valsartan
Valsartan
131 claims
- Furosemide
Furosemide
121 claims
- Carvedilol
Carvedilol
106 claims
- Atorvastatin Calcium
Atorvastatin Calcium
97 claims
- Entresto
Entresto
93 claims
- Eliquis
Eliquis
76 claims
- Metolazone 66
Metolazone
66 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 188 |
| Valsartan | 131 |
| Furosemide | 121 |
| Carvedilol | 106 |
| Atorvastatin Calcium | 97 |
| Entresto Sacubitril/Valsartan | 93 |
| Eliquis Apixaban | 76 |
| Metolazone | 66 |
| Rosuvastatin Calcium | 56 |
| Nitroglycerin | 43 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Clinical Cardiac Electrophysiology Physician in LA →
All providers in Louisiana →
Compare specialties →
Clinical Cardiac Electrophysiology Physician Overview
How William Bailey, M.D. fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.
1,668
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,662
Avg Claims per Provider
William Bailey, M.D.'s 1,398 claims are below the specialty average of 1,662.
Nationwide Clinical Cardiac Electrophysiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bailey, both outside Louisiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Cardiac Electrophysiology Physician Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Bailey.
One of 23 Clinical Cardiac Electrophysiology Physician providers enrolled in Louisiana, 5 are shown here.
Joshua Aymond
Baton Rouge, LA
Dr. James Barrios
M.D.
Baton Rouge, LA
Dr. Murat Celebi
M.D.
New Orleans, LA
Dr. Dedric Clarke
MD
Thibodaux, LA
Dr. Robert Drennan
MD
Baton Rouge, LA
Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Bailey, M.D.'s specialty? ▼
William Bailey, M.D. specializes in Clinical Cardiac Electrophysiology Physician and practices in Lafayette, Louisiana. Credentials: M.D..
How much does William Bailey, M.D. prescribe under Medicare Part D? ▼
In 2024, William Bailey, M.D. wrote 1,398 Medicare Part D claims totaling $196K in drug costs for 326 beneficiaries.
Where is William Bailey, M.D. located? ▼
William Bailey, M.D. is located at 913 S COLLEGE RD, Lafayette, LA, 70503. Phone: (337) 233-7223.
What is William Bailey, M.D.'s NPI number? ▼
William Bailey, M.D.'s National Provider Identifier (NPI) is 1588667364, issued on 05/24/2005.
Does William Bailey, M.D. prescribe more brand-name or generic drugs? ▼
William Bailey, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $183K in brand drug costs.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US? ▼
There are 1,668 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,662 Medicare Part D claims per year.
What drugs does William Bailey, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, William Bailey, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Valsartan, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Bailey, M.D. accept Medicare? ▼
William Bailey, M.D. appears in CMS Medicare data with 1,398 Part D claims and 326 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Bailey, M.D.'s credentials? ▼
William Bailey, M.D.'s NPI is 1588667364 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
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.