2026 NPPES data Cardiovascular Disease Physician NPI 1528026374 M.D.
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Steven Marso, M.D.

Cardiovascular Disease Physician in Kansas City, Missouri. 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
466
Medicare Part D claims · 110 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$65.6
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Steven Marso, M.D. filed 466 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Kansas City, Missouri, prescribing 89% generic.

466
Part D claims, 2023
89%
generic prescribing
$65.6
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.

Steven Marso, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

466 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

Steven Marso, 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 Steven Marso, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/02/2006

NPI 1528026374

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

466 85% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Missouri

How Cardiovascular Disease Physician compares to other specialties among Missouri providers

Missouri providers
Pharmacist - 4.8%Pharmacist4.8%Professional Counselor - 4.8%Professional Counselor4.8%Speech-Language Pathologist - 4.5%Speech-Language Pathologist4.5%Clinical Social Worker - 4.5%Clinical Social Worker4.5%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4%Physical Therapist4%Cardiovascular Disease Physician - 0.4%Cardiovascular Disease Physician0.4%
Largest specialties in Missouri (% of in-state 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:

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).

Steven Marso, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 2330 E MEYER BLVD, Kansas City, MO, 64132, with a listed phone of (816) 276-4800. NPI 1528026374 was issued on 05/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Marso most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 466 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $64K in drug spend, split 11% brand-name and 89% generic by claim count. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

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

2330 E MEYER BLVD
Kansas City, MO 64132

Provider Details

NPI 1528026374
Specialty Cardiovascular Disease Physician
Credentials M.D.
Gender Male
NPI Issued 05/02/2006

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 Steven Marso, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$66

Largest payer

iRhythm Technologies, Inc.

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

Steven Marso, M.D. - brand share 11.0%
Cardiovascular Disease Physician average

11% brand-name claims vs 89% generic, on 466 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.

466
Total Claims
$64K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,244
Total Day Supply
37,138
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$57K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.43
Gender Split
34% female / 66% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Steven Marso, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Clopidogrel
Clopidogrel Bisulfate
82
Atorvastatin Calcium
69
Carvedilol
34
Metoprolol Succinate
32
Losartan Potassium
26
Rosuvastatin Calcium
26
Lisinopril
24
Eliquis
Apixaban
22
Entresto
Sacubitril/Valsartan
20
Amlodipine Besylate
15

* 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 Steven Marso, 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

Steven Marso, M.D.'s 466 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Marso.

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 Missouri 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.

Frequently Asked Questions

What is Steven Marso, M.D.'s specialty?
Steven Marso, M.D. specializes in Cardiovascular Disease Physician and practices in Kansas City, Missouri. Credentials: M.D..
How much does Steven Marso, M.D. prescribe under Medicare Part D?
In 2023, Steven Marso, M.D. wrote 466 Medicare Part D claims totaling $64K in drug costs for 110 beneficiaries.
Where is Steven Marso, M.D. located?
Steven Marso, M.D. is located at 2330 E MEYER BLVD, Kansas City, MO, 64132. Phone: (816) 276-4800.
What is Steven Marso, M.D.'s NPI number?
Steven Marso, M.D.'s National Provider Identifier (NPI) is 1528026374, issued on 05/02/2006.
Does Steven Marso, M.D. prescribe more brand-name or generic drugs?
Steven Marso, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $57K 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 Steven Marso, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Steven Marso, M.D.'s most frequently prescribed drugs include Clopidogrel, Atorvastatin Calcium, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Steven Marso, M.D. accept Medicare?
Steven Marso, M.D. appears in CMS Medicare data with 466 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Steven Marso, M.D.'s credentials?
Steven Marso, M.D.'s NPI is 1528026374 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

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.