NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1588692818 DO
Verify on CMS → Matthew McMahon, DO
Cardiovascular Disease Physician in Cedar Rapids, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,810 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
1K
Medicare Part D claims · 125 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$6.3K
12 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
Matthew McMahon, DO filed 1,258 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Cedar Rapids, Iowa, prescribing 71% generic.
- 1K
- Part D claims, 2023
- 71%
- generic prescribing
- $6.3K
- industry payments (Sunshine Act)
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.
Matthew McMahon, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,258 Top 22% higher than 78% 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-eligible specialty (heuristic, not verified)
Matthew McMahon, DO 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 Matthew McMahon, DO?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
1,258 59% vs specialty avg
Specialty distribution in Iowa
How Cardiovascular Disease Physician compares to other specialties among Iowa 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).
Matthew McMahon, DO appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding DO credentials at 202 10TH ST SE, Cedar Rapids, IA, 52403, with a listed phone of (319) 364-7101. NPI 1588692818 was issued on 06/28/2006.
Medicare Part D records for calendar year 2023 show 1,258 prescription claims written by this provider, covering 125 Medicare beneficiaries and totaling roughly $470K in drug spend, split 29% brand-name and 71% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 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 | 1588692818 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 06/28/2006 |
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 Matthew McMahon, DO. Source: openpaymentsdata.cms.gov.
Total received
$6.3K
Largest payer
Lilly USA, LLC
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
Matthew McMahon, DO - brand share 29.0%
Cardiovascular Disease Physician average
29% brand-name claims vs 71% generic, on 1,258 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.
1,258
Total Claims
$470K
Total Drug Cost
125
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,157
- Total Day Supply
- 63,622
- Brand vs Generic
- 29% brand / 71% generic
- Brand Drug Cost
- $414K
- Generic Drug Cost
- $55K
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 2.56
- Gender Split
- 34% female / 66% male
- Age Distribution
- <65: 22, 65-74: 43, 75-84: 39, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Matthew McMahon, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Spironolactone
Spironolactone
165 claims
- Metoprolol Succinate
Metoprolol Succinate
149 claims
- Jardiance
Jardiance
124 claims
- Entresto
Entresto
114 claims
- Furosemide
Furosemide
80 claims
- Potassium Chloride
Potassium Chloride
71 claims
- Torsemide 62
Torsemide
62 claims
- Carvedilol 43
Carvedilol
43 claims
| Drug | Claims |
|---|---|
| Spironolactone | 165 |
| Metoprolol Succinate | 149 |
| Jardiance Empagliflozin | 124 |
| Entresto Sacubitril/Valsartan | 114 |
| Furosemide | 80 |
| Potassium Chloride | 71 |
| Torsemide | 62 |
| Carvedilol | 43 |
| Lisinopril | 43 |
| Atorvastatin Calcium | 42 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Matthew McMahon, DO fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Matthew McMahon, DO's 1,258 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as McMahon.
Dr. Deepika Reddy Abbadi
M.D
Des Moines, IA
Dr. Mostafa Abohelwa
MD
Iowa City, IA
Dr. Subhi Abu-Halawa
MD
Cedar Rapids, IA
Dr. Shakuntala Advani
M.D.
West Des Moines, IA
Dr. Tauseef Akhtar
MD
Mason City, IA
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 Iowa 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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Frequently Asked Questions
What is Matthew McMahon, DO's specialty? ▼
Matthew McMahon, DO specializes in Cardiovascular Disease Physician and practices in Cedar Rapids, Iowa. Credentials: DO.
How much does Matthew McMahon, DO prescribe under Medicare Part D? ▼
In 2023, Matthew McMahon, DO wrote 1,258 Medicare Part D claims totaling $470K in drug costs for 125 beneficiaries.
Where is Matthew McMahon, DO located? ▼
Matthew McMahon, DO is located at 202 10TH ST SE, Cedar Rapids, IA, 52403. Phone: (319) 364-7101.
What is Matthew McMahon, DO's NPI number? ▼
Matthew McMahon, DO's National Provider Identifier (NPI) is 1588692818, issued on 06/28/2006.
Does Matthew McMahon, DO prescribe more brand-name or generic drugs? ▼
Matthew McMahon, DO's prescribing is 29% brand-name and 71% generic drugs by claim count, with $414K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 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 Matthew McMahon, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Matthew McMahon, DO's most frequently prescribed drugs include Spironolactone, Metoprolol Succinate, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matthew McMahon, DO accept Medicare? ▼
Matthew McMahon, DO appears in CMS Medicare data with 1,258 Part D claims and 125 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matthew McMahon, DO's credentials? ▼
Matthew McMahon, DO's NPI is 1588692818 with credentials DO. 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.