NPI registry status
Active
2026 NPPES data Interventional Cardiology Physician NPI 1437158508 M.D.
Verify on CMS → William Parsons, M.D.
Interventional Cardiology Physician in Raleigh, 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 3,400 in Interventional Cardiology 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
8K
Medicare Part D claims · 828 beneficiaries · Interventional Cardiology Physician avg: 3K
Generic prescribing
82%
generic claims · 18% 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
William Parsons, M.D. filed 8,095 Medicare Part D claims in 2023 as a Interventional Cardiology Physician in Raleigh, North Carolina, prescribing 82% generic.
- 8K
- Part D claims, 2023
- 82%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
William Parsons, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
8,095 Top 3% higher than 97% 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 certification likely (heuristic, not verified)
William Parsons, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Parsons, M.D.?
Quality data not reportedPrimary specialty
Interventional Cardiology Physician
Medicare Part D claims
8,095 171% vs specialty avg
Specialty distribution in North Carolina
How Interventional Cardiology 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 Interventional Cardiology 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).
William Parsons, M.D. appears in the CMS NPPES registry as an Interventional Cardiology Physician provider holding M.D. credentials at 3324 SIX FORKS RD, Raleigh, NC, 27609, with a listed phone of (919) 781-7772. NPI 1437158508 was issued on 07/20/2005.
Medicare Part D records for calendar year 2023 show 8,095 prescription claims written by this provider, covering 828 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, split 18% brand-name and 82% generic by claim count.
Interventional Cardiology Physician is a narrow specialty nationwide, with 3,400 enrolled providers across 53 states and an average of 2,984 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 | 1437158508 |
|---|---|
| Specialty | Interventional Cardiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/20/2005 |
Hospital and facility affiliations
Facilities where William Parsons, M.D. 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.
Duke Health Integrated Practice Inc
Cary, 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).
Brand vs generic prescribing mix · Typical
William Parsons, M.D. - brand share 18.0%
Interventional Cardiology Physician average
18% brand-name claims vs 82% generic, on 8,095 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.
8,095
Total Claims
$1.5M
Total Drug Cost
828
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 19,479
- Total Day Supply
- 581,750
- Brand vs Generic
- 18% brand / 82% generic
- Brand Drug Cost
- $1.4M
- Generic Drug Cost
- $153K
Patient Demographics
- Average Patient Age
- 75.9 years
- Avg HCC Risk Score
- 1.54
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 42, 65-74: 324, 75-84: 342, 85+: 120
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Parsons, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
723 claims
- Metoprolol Succinate
Metoprolol Succinate
661 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
634 claims
- Ezetimibe
Ezetimibe
619 claims
- Atorvastatin Calcium
Atorvastatin Calcium
590 claims
- Spironolactone
Spironolactone
493 claims
- Amlodipine Besylate
Amlodipine Besylate
375 claims
- Carvedilol
Carvedilol
361 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 723 |
| Metoprolol Succinate | 661 |
| Rosuvastatin Calcium | 634 |
| Ezetimibe | 619 |
| Atorvastatin Calcium | 590 |
| Spironolactone | 493 |
| Amlodipine Besylate | 375 |
| Carvedilol | 361 |
| Furosemide | 329 |
| Lisinopril | 309 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Interventional Cardiology Physician in NC →
All providers in North Carolina →
Compare specialties →
Interventional Cardiology Physician Overview
How William Parsons, M.D. fits within the Interventional Cardiology Physician landscape nationally.
3,400
Interventional Cardiology Physician Providers in US
53
States with Interventional Cardiology Physician
2,984
Avg Claims per Provider
William Parsons, M.D.'s 8,095 claims are above the specialty average of 2,984.
Nearby Interventional Cardiology Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Parsons.
Dr. John Alexander
M.D.
Charlotte, NC
Dr. Amjad Almahameed
M.D., M.P.H.
Charlotte, NC
Dr. Mubashir Bahrami
M.D.
Cary, NC
Dr. Jonathan Berry
MD FACC
Greensboro, NC
Dr. David Bohle
MD
Elkin, NC
Compare Interventional Cardiology 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 North Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Interventional Cardiology 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 William Parsons, M.D.'s specialty? ▼
William Parsons, M.D. specializes in Interventional Cardiology Physician and practices in Raleigh, North Carolina. Credentials: M.D..
How much does William Parsons, M.D. prescribe under Medicare Part D? ▼
In 2023, William Parsons, M.D. wrote 8,095 Medicare Part D claims totaling $1.5M in drug costs for 828 beneficiaries.
Where is William Parsons, M.D. located? ▼
William Parsons, M.D. is located at 3324 SIX FORKS RD, Raleigh, NC, 27609. Phone: (919) 781-7772.
What is William Parsons, M.D.'s NPI number? ▼
William Parsons, M.D.'s National Provider Identifier (NPI) is 1437158508, issued on 07/20/2005.
Does William Parsons, M.D. prescribe more brand-name or generic drugs? ▼
William Parsons, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $1.4M in brand drug costs.
How many Interventional Cardiology Physician providers are there in the US? ▼
There are 3,400 Interventional Cardiology Physician providers across 53 states in the US. The average Interventional Cardiology Physician provider writes 2,984 Medicare Part D claims per year.
What drugs does William Parsons, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, William Parsons, M.D.'s most frequently prescribed drugs include Eliquis, Metoprolol Succinate, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Parsons, M.D. accept Medicare? ▼
William Parsons, M.D. appears in CMS Medicare data with 8,095 Part D claims and 828 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Parsons, M.D.'s credentials? ▼
William Parsons, M.D.'s NPI is 1437158508 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 (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.