2026 NPPES data Medical Oncology Physician NPI 1790218451 MD
Verify on CMS →

Kevin Breen, MD

Medical Oncology Physician in Louisville, Kentucky.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,028 in Medical Oncology 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.

What the federal data shows

Kevin Breen, MD is a Medical Oncology Physician in Louisville, Kentucky, listed in the federal CMS National Provider Identifier registry.

Likely
board-certified (heuristic)
#145
Medical Oncology Physician rank among Kentucky specialties

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.

Federal trust snapshot

What official records show about Kevin Breen, MD

Federal registry listing with board-eligibility signals — verify credentials with the state medical board before clinical decisions.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1790218451), first enumerated 04/09/2017.

    Source: CMS NPPES

  • Not in federal data

    Medicare Part D participation

    No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).

    Source: CMS Part D Prescriber PUF

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1790218451 · Medical Oncology Physician

NPI-10 · ENUM-RECENT · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1790218451
  • ENUM-RECENT 2017
  • TAX-NARROW 4,028
  • RX-NONE No Part D
  • BOOK-THIN 34 in Kentucky
  • PHOTO-ENUM Bobak Parang · 2017
Board certification likely (heuristic, not verified)

Kevin Breen, MD 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 Kevin Breen, MD?

Quality data not reported

NPI registry status

Active

Issued 04/09/2017

NPI 1790218451

Primary specialty

Medical Oncology Physician

Niche

4,028 US NPIs in this specialty

Specialty distribution in Kentucky

How Medical Oncology Physician compares to other specialties among Kentucky providers

Kentucky providers
Family Nurse Practitioner5.8%Student in an Organized Heal…5.2%Pharmacist4.8%Mental Health Counselor4.6%Clinical Social Worker4.2%Physical Therapist3.6%Medical Oncology Physician0%
Largest specialties in Kentucky (% 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 Medical Oncology 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).

Practice Address

4955 NORTON HEALTHCARE BLVD
Louisville, KY 40241

Provider Details

NPI 1790218451
Specialty Medical Oncology Physician
Credentials MD
Gender Male
NPI Issued 04/09/2017

Hospital and facility affiliations

Facilities where Kevin Breen, MD 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.

Norton Hospitals, Inc
★★☆☆☆ 2/5
Louisville, KY
Acute Care Hospitals
CMS CCN: 180088

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medical Oncology Physician Overview

How Kevin Breen, MD fits within the Medical Oncology Physician landscape nationally.

4,028
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
732
Avg Claims per Provider

Nationwide Medical Oncology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Breen, both outside Kentucky so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2017)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Medical Oncology Physician Providers in Kentucky

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

One of 34 Medical Oncology Physician providers enrolled in Kentucky, 5 are shown here.

Compare Medical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Kevin Breen, MD's specialty?
Kevin Breen, MD specializes in Medical Oncology Physician and practices in Louisville, Kentucky. Credentials: MD.
Where is Kevin Breen, MD located?
Kevin Breen, MD is located at 4955 NORTON HEALTHCARE BLVD, Louisville, KY, 40241. Phone: (502) 394-6350.
What is Kevin Breen, MD's NPI number?
Kevin Breen, MD's National Provider Identifier (NPI) is 1790218451, issued on 04/09/2017.
How many Medical Oncology Physician providers are there in the US?
There are 4,028 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 732 Medicare Part D claims per year.
Does Kevin Breen, MD accept Medicare?
Kevin Breen, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kevin Breen, MD's credentials?
Kevin Breen, MD's NPI is 1790218451 with credentials MD. 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.
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 August 2026 (NPPES) / 2024 (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

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 August 2026.