NPI registry status
Active
2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1144338161 MD
Verify on CMS → William Smith, MD
Clinical Cardiac Electrophysiology Physician in Wilmington, North Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,580 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
3K
Medicare Part D claims · 630 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.5K
95 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
William Smith, MD filed 3,187 Medicare Part D claims in 2023 as a Clinical Cardiac Electrophysiology Physician in Wilmington, North Carolina, prescribing 81% generic.
- 3K
- Part D claims, 2023
- 81%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥89th
- 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 Smith, MD
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 1144338161), first enumerated 08/29/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,187 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
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
3 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$4.5K in reported industry payments (95 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 1144338161 · Clinical Cardiac Electrophysiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1144338161
- ENUM-LEGACY 2006
- TAX-NARROW 1,580
- RX-MID 3,187
- BOOK-THIN 36 in North Carolina
- PHOTO-ENUM Robert Jones · 2006
William Smith, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,187 ≥ 89th percentile 89% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
William Smith, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about William Smith, MD?
Quality data not reportedPrimary specialty
Clinical Cardiac Electrophysiology Physician
Medicare Part D claims
3,187 100% vs specialty avg
Specialty distribution in North Carolina
How Clinical Cardiac Electrophysiology Physician compares to other specialties among North Carolina 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 | 1144338161 |
|---|---|
| Specialty | Clinical Cardiac Electrophysiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/29/2006 |
Hospital and facility affiliations
Facilities where William Smith, MD 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.
According to CMS billing records, William Smith, MD is affiliated with 3 Medicare-billing facilities.
Novant Health Medical Group Coastal Region LLC
Wilmington, NC
Novant Health New Hanover Regional Medical Center LLC
Wilmington, NC
Pender Memorial Hospital Incorporated
Burgaw, NC
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Smith, MD. Source: openpaymentsdata.cms.gov.
Total received
$4.5K
Largest payer
Boston Scientific 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 Smith, MD - brand share 19.0%
Clinical Cardiac Electrophysiology Physician average
19% brand-name claims vs 81% generic, on 3,187 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.
3,187
Total Claims
$740K
Total Drug Cost
630
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,954
- Total Day Supply
- 236,412
- Brand vs Generic
- 19% brand / 81% generic
- Brand Drug Cost
- $653K
- Generic Drug Cost
- $87K
- Antibiotic Claims
- 17
Patient Demographics
- Average Patient Age
- 76.1 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 44% female / 56% male
- Age Distribution
- <65: 24, 65-74: 237, 75-84: 285, 85+: 84
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Smith, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
482 claims
- Eliquis
Eliquis
411 claims
- Diltiazem 24hr Er …
Diltiazem 24hr Er (Cd)
198 claims
- Metoprolol Tartrate 182
Metoprolol Tartrate
182 claims
- Sotalol 151
Sotalol
151 claims
- Amiodarone Hcl 135
Amiodarone Hcl
135 claims
- Carvedilol 127
Carvedilol
127 claims
- Flecainide Acetate 126
Flecainide Acetate
126 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 482 |
| Eliquis Apixaban | 411 |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | 198 |
| Metoprolol Tartrate | 182 |
| Sotalol Sotalol Hcl | 151 |
| Amiodarone Hcl | 135 |
| Carvedilol | 127 |
| Flecainide Acetate | 126 |
| Furosemide | 119 |
| Amlodipine Besylate | 114 |
* 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 NC →
All providers in North Carolina →
Compare specialties →
Clinical Cardiac Electrophysiology Physician Overview
How William Smith, MD fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.
1,580
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,596
Avg Claims per Provider
William Smith, MD's 3,187 claims are above the specialty average of 1,596.
Nationwide Clinical Cardiac Electrophysiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Smith, both outside North Carolina so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Cardiac Electrophysiology Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Smith.
One of 36 Clinical Cardiac Electrophysiology Physician providers enrolled in North Carolina, 5 are shown here.
Dr. Carlos Arrieta Garcia
MD
Wilmington, NC
Dr. Elijah Beaty
MD
Concord, NC
Dr. Joseph Bumgarner
MD
Raleigh, NC
Matthew Carlisle
Greensboro, NC
Dr. Kashif Chaudhry
M.D.
Winston Salem, NC
Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Smith, MD's specialty? ▼
William Smith, MD specializes in Clinical Cardiac Electrophysiology Physician and practices in Wilmington, North Carolina. Credentials: MD.
How much does William Smith, MD prescribe under Medicare Part D? ▼
In 2023, William Smith, MD wrote 3,187 Medicare Part D claims totaling $740K in drug costs for 630 beneficiaries.
Where is William Smith, MD located? ▼
William Smith, MD is located at 1500 PHYSICIANS DR, Wilmington, NC, 28401. Phone: (910) 662-9500.
What is William Smith, MD's NPI number? ▼
William Smith, MD's National Provider Identifier (NPI) is 1144338161, issued on 08/29/2006.
Does William Smith, MD prescribe more brand-name or generic drugs? ▼
William Smith, MD's prescribing is 19% brand-name and 81% generic drugs by claim count, with $653K in brand drug costs.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US? ▼
There are 1,580 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,596 Medicare Part D claims per year.
What drugs does William Smith, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Smith, MD's most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Diltiazem 24hr Er (Cd). This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Smith, MD accept Medicare? ▼
William Smith, MD appears in CMS Medicare data with 3,187 Part D claims and 630 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Smith, MD's credentials? ▼
William Smith, MD's NPI is 1144338161 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
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.