NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1235121997 M.D.
Verify on CMS → John Allan, M.D.
Cardiovascular Disease Physician in Statesville, 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 24,795 in Cardiovascular Disease 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
9K
Medicare Part D claims · 855 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.1K
119 payments · CMS Open Payments (Sunshine Act)
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
John Allan, M.D. filed 9,311 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Statesville, North Carolina, prescribing 72% generic.
- 9K
- Part D claims, 2023
- 72%
- 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.
John Allan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
9,311 Top 2% higher than 98% 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)
John Allan, 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 John Allan, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
9,311 207% vs specialty avg
Specialty distribution in North Carolina
How Cardiovascular Disease 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 Cardiovascular Disease 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).
John Allan, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 1424 FERN CREEK DR, Statesville, NC, 28625, with a listed phone of (704) 878-2058. NPI 1235121997 was issued on 08/18/2005.
Medicare Part D records for calendar year 2023 show 9,311 prescription claims written by this provider, covering 855 Medicare beneficiaries and totaling roughly $4.0 million in drug spend, split 28% brand-name and 72% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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 | 1235121997 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/18/2005 |
Hospital and facility affiliations
Facilities where John Allan, 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.
Iredell Physician Network LLC
Statesville, 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 John Allan, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.1K
Largest payer
Novartis Pharmaceuticals 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 · Above average
John Allan, M.D. - brand share 28.0%
Cardiovascular Disease Physician average
28% brand-name claims vs 72% generic, on 9,311 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.
9,311
Total Claims
$4.0M
Total Drug Cost
855
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 18,960
- Total Day Supply
- 563,163
- Brand vs Generic
- 28% brand / 72% generic
- Brand Drug Cost
- $3.7M
- Generic Drug Cost
- $240K
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 2.15
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 114, 65-74: 348, 75-84: 284, 85+: 109
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Allan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Carvedilol
Carvedilol
912 claims
- Eliquis
Eliquis
832 claims
- Atorvastatin Calcium
Atorvastatin Calcium
820 claims
- Entresto
Entresto
571 claims
- Torsemide
Torsemide
516 claims
- Metoprolol Succinate
Metoprolol Succinate
506 claims
- Amlodipine Besylate
Amlodipine Besylate
418 claims
- Losartan Potassium 299
Losartan Potassium
299 claims
| Drug | Claims |
|---|---|
| Carvedilol | 912 |
| Eliquis Apixaban | 832 |
| Atorvastatin Calcium | 820 |
| Entresto Sacubitril/Valsartan | 571 |
| Torsemide | 516 |
| Metoprolol Succinate | 506 |
| Amlodipine Besylate | 418 |
| Losartan Potassium | 299 |
| Jardiance Empagliflozin | 280 |
| Furosemide | 261 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Cardiovascular Disease Physician in NC →
All providers in North Carolina →
Compare specialties →
Cardiovascular Disease Physician Overview
How John Allan, M.D. fits within the Cardiovascular Disease Physician landscape nationally.
24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
John Allan, M.D.'s 9,311 claims are above the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Allan.
Dr. William Abernathy
MD
Durham, NC
Dr. William Abernethy
M.D.
Asheville, NC
Dr. Cyril Abrams
M.D.
Jacksonville, NC
Dr. George Adams
M.D.
Garner, NC
Dr. Kirkwood Adams
MD
Chapel Hill, NC
Compare Cardiovascular Disease 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 Cardiovascular Disease 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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Explore North Carolina
Frequently Asked Questions
What is John Allan, M.D.'s specialty? ▼
John Allan, M.D. specializes in Cardiovascular Disease Physician and practices in Statesville, North Carolina. Credentials: M.D..
How much does John Allan, M.D. prescribe under Medicare Part D? ▼
In 2023, John Allan, M.D. wrote 9,311 Medicare Part D claims totaling $4.0M in drug costs for 855 beneficiaries.
Where is John Allan, M.D. located? ▼
John Allan, M.D. is located at 1424 FERN CREEK DR, Statesville, NC, 28625. Phone: (704) 878-2058.
What is John Allan, M.D.'s NPI number? ▼
John Allan, M.D.'s National Provider Identifier (NPI) is 1235121997, issued on 08/18/2005.
Does John Allan, M.D. prescribe more brand-name or generic drugs? ▼
John Allan, M.D.'s prescribing is 28% brand-name and 72% generic drugs by claim count, with $3.7M in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does John Allan, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Allan, M.D.'s most frequently prescribed drugs include Carvedilol, Eliquis, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Allan, M.D. accept Medicare? ▼
John Allan, M.D. appears in CMS Medicare data with 9,311 Part D claims and 855 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Allan, M.D.'s credentials? ▼
John Allan, M.D.'s NPI is 1235121997 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.