2026 NPPES data Interventional Cardiology Physician NPI 1639494339 M.D.
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Brian Brown, M.D.

Interventional Cardiology Physician in Spartanburg, South 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
3K
Medicare Part D claims · 631 beneficiaries · Interventional Cardiology Physician avg: 3K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.1/100
▲ 13 pts above national avg 83.1 · Exceptional
Industry payments
$98.3K
237 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Brian Brown, M.D. reported a CMS MIPS final score of 96.1/100 - above the 83.1 national average - and filed 3,486 Medicare Part D claims in 2023.

96.1/100
MIPS score · +13 vs avg
3K
Part D claims, 2023
81%
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.

Brian Brown, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

96 Top 17% higher than 83% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Brian Brown, M.D. sits

This provider among interventional cardiology physician peers

Across the 1,386 interventional cardiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Brian Brown, M.D. writes more Part D claims than 59% of them and scores higher on MIPS quality than 81% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 8Brian Brown, M.D.-Part D claim volume, percentile in specialty: 59 · MIPS quality, percentile: 81
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one interventional cardiology physician peer from a representative sample of 60; the gold marker is Brian Brown, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Brian Brown, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 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 Brian Brown, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 04/06/2010

NPI 1639494339

Primary specialty

Interventional Cardiology Physician

Niche

3,400 US NPIs in this specialty

Medicare Part D claims

3,486 17% vs specialty avg

2023 prescription claims

Specialty avg: 2,984

MIPS final score

96.1/100 13 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Interventional Cardiology Physician compares to other specialties among South Carolina providers

South Carolina providers
Pharmacist - 6.2%Pharmacist6.2%Mental Health Counselor - 5.1%Mental Health Counselor5.1%Family Nurse Practitioner - 4.6%Family Nurse Practitioner4.6%Physical Therapist - 4.5%Physical Therapist4.5%Behavior Technician - 3.8%Behavior Technician3.8%Speech-Language Pathologist - 3.7%Speech-Language Pathologist3.7%Interventional Cardiology Physician - 0.1%Interventional Cardiology Physician0.1%
Largest specialties in South Carolina (% of in-state providers)

Medicare quality performance, MIPS

Brian Brown, M.D.'s 2023 MIPS final score plotted against the Interventional Cardiology Physician national average

High performer (top quartile)
MIPS Final Score
96.1/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Interventional Cardiology Physician) - 96.1/100 vs national avg 83.1

0%100%National avg83%96.1%
MIPS final score (Interventional Cardiology Physician) - 96.1/100 vs national avg 83.1
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).

Brian Brown, M.D. appears in the CMS NPPES registry as an Interventional Cardiology Physician provider holding M.D. credentials at 1083 BOILING SPRINGS RD, Spartanburg, SC, 29303, with a listed phone of (864) 583-8647. NPI 1639494339 was issued on 04/06/2010.

Medicare Part D records for calendar year 2023 show 3,486 prescription claims written by this provider, covering 631 Medicare beneficiaries and totaling roughly $752K in drug spend, split 19% brand-name and 81% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.1/100 for the 2023 performance year (Quality 92.2), compared with the national average of 83.1.

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

1083 BOILING SPRINGS RD
Spartanburg, SC 29303

Provider Details

NPI 1639494339
Specialty Interventional Cardiology Physician
Credentials M.D.
Gender Male
NPI Issued 04/06/2010

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

96.0864
Final Score
Avg: 83.1
92.1728
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Brian Brown, 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.

Pelham Medical Center
★★★★★ 5/5
Greer, SC
Acute Care Hospitals
CMS CCN: 420103
Spartanburg Medical Center
★★☆☆☆ 2/5
Spartanburg, SC
Acute Care Hospitals
CMS CCN: 420007

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 Brian Brown, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$98.3K

Largest payer

Shimadzu Precision Instruments, 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

Brian Brown, M.D. - brand share 19.0%
Interventional Cardiology Physician average

19% brand-name claims vs 81% generic, on 3,486 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.

3,486
Total Claims
$752K
Total Drug Cost
631
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,918
Total Day Supply
266,327
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$701K
Generic Drug Cost
$51K

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.94
Gender Split
44% female / 56% male
Age Distribution
<65: 67, 65-74: 247, 75-84: 250, 85+: 67

Top Prescribed Drugs (Medicare Part D)

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

What Brian Brown, 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
493
Furosemide
266
Carvedilol
252
Eliquis
Apixaban
248
Atorvastatin Calcium
211
Lisinopril
150
Metoprolol Tartrate
146
Metoprolol Succinate
138
Spironolactone
131
Xarelto
Rivaroxaban
102

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Interventional Cardiology Physician Overview

How Brian Brown, 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

Brian Brown, M.D.'s 3,486 claims are above the specialty average of 2,984.

Nearby Interventional Cardiology Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Brown.

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 South 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.

Frequently Asked Questions

What is Brian Brown, M.D.'s specialty?
Brian Brown, M.D. specializes in Interventional Cardiology Physician and practices in Spartanburg, South Carolina. Credentials: M.D..
How much does Brian Brown, M.D. prescribe under Medicare Part D?
In 2023, Brian Brown, M.D. wrote 3,486 Medicare Part D claims totaling $752K in drug costs for 631 beneficiaries.
What is Brian Brown, M.D.'s Medicare quality score?
Brian Brown, M.D. has a CMS MIPS Final Score of 96.1/100 (Quality: 92.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Brian Brown, M.D. located?
Brian Brown, M.D. is located at 1083 BOILING SPRINGS RD, Spartanburg, SC, 29303. Phone: (864) 583-8647.
What is Brian Brown, M.D.'s NPI number?
Brian Brown, M.D.'s National Provider Identifier (NPI) is 1639494339, issued on 04/06/2010.
Does Brian Brown, M.D. prescribe more brand-name or generic drugs?
Brian Brown, M.D.'s prescribing is 19% brand-name and 81% generic drugs by claim count, with $701K 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 Brian Brown, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Brian Brown, M.D.'s most frequently prescribed drugs include Clopidogrel, Furosemide, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brian Brown, M.D. accept Medicare?
Brian Brown, M.D. appears in CMS Medicare data with 3,486 Part D claims and 631 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brian Brown, M.D.'s credentials?
Brian Brown, M.D.'s NPI is 1639494339 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.