2026 NPPES data Hematology & Oncology Physician NPI 1003805375 MD
Verify on CMS →

Susan Brown, MD

Hematology & Oncology Physician in Niles, Illinois.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,530 in Hematology & 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.
Prescribing volume
12
Medicare Part D claims · Hematology & Oncology Physician avg: 885

What the federal data shows

Susan Brown, MD filed 12 Medicare Part D claims in 2024 as a Hematology & Oncology Physician in Niles, Illinois.

12
Part D claims, 2024
≥0th
pct by Part D claim volume (lower-bound band)

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 Susan Brown, MD

Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1003805375), first enumerated 10/19/2005.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 12 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    Board certification signal

    Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.

    Source: NUCC taxonomy + CMS participation heuristic

  • State context

    State board disciplinary context

    Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Susan Brown, MD's individual license status. Verify directly with the state medical board.

    Source: IDFPR annual report 2023

  • 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.

Compare Brown with other Hematology & Oncology Physician providers

Same primary specialty, same federal CMS NPPES roster.

All 6 Hematology & Oncology Physician providers in Niles, IL →

Also enrolled in Illinois

Other specialties in Niles: Pharmacist (76) · Physical Therapist (61) · Speech-Language Pathologist (40) · Clinical Social Worker (32)

CMS NPPES provider registry desk

NPI 1003805375 · Hematology & Oncology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1003805375
  • ENUM-LEGACY 2005
  • TAX-MID 12K Hematology &
  • RX-TRACE 12
  • BOOK-LIGHT 508 in Illinois
  • PHOTO-ENUM Mary Jo Villar, D.O. · 2005

Susan Brown, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2024, across all CMS prescribers nationally

12 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands

0–200: 679,947 prescribers (48%). This entry sits in this band. 200–400: 188,835 prescribers (13%). Above this entry. 400–600: 95,866 prescribers (7%). Above this entry. 600–800: 60,107 prescribers (4%). Above this entry. 800–1,000: 43,043 prescribers (3%). Above this entry. 1,000–1,200: 33,612 prescribers (2%). Above this entry. 1,200–1,400: 27,889 prescribers (2%). Above this entry. 1,400–1,600: 23,183 prescribers (2%). Above this entry. 1,600–1,800: 19,917 prescribers (1%). Above this entry. 1,800–2,000: 17,585 prescribers (1%). Above this entry. 2K+: 226,899 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.

The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.

Source CMS Medicare Part D Prescriber Public Use File · 2024

Board-eligible specialty (heuristic, not verified)

Susan Brown, MD 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 Susan Brown, MD?

Quality data not reported

NPI registry status

Active

Issued 10/19/2005

NPI 1003805375

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,530 US NPIs in this specialty

Medicare Part D claims

12 99% vs specialty avg

2024 prescription claims

Specialty avg: 885

Specialty distribution in Illinois

How Hematology & Oncology Physician compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist4.9%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.1%Pharmacist4.1%Hematology & Oncology Physic…0.2%
Largest specialties in Illinois (% 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 Hematology & 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

8915 W GOLF RD
Niles, IL 60714

Provider Details

NPI 1003805375
Specialty Hematology & Oncology Physician
Credentials MD
Gender Female
NPI Issued 10/19/2005

License & disciplinary context - Illinois IDFPR 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Susan Brown, MD. To verify Susan Brown, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

12
Total Claims
$70
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12
Total Day Supply
359
Brand Drug Cost
$0
Generic Drug Cost
$70

Patient Demographics

Average Patient Age
86.0 years
Avg HCC Risk Score
1.40

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

Drug Claims
Lisinopril
12

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

Hematology & Oncology Physician Overview

How Susan Brown, MD fits within the Hematology & Oncology Physician landscape nationally.

11,530
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
885
Avg Claims per Provider

Susan Brown, MD's 12 claims are below the specialty average of 885.

Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year

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

Same NPPES enumeration year (2005)

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

Nearby Hematology & Oncology Physician Providers in Illinois

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

One of 508 Hematology & Oncology Physician providers enrolled in Illinois, 11 are shown on this page.

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Susan Brown, MD's specialty?
Susan Brown, MD specializes in Hematology & Oncology Physician and practices in Niles, Illinois. Credentials: MD.
How much does Susan Brown, MD prescribe under Medicare Part D?
In 2024, Susan Brown, MD wrote 12 Medicare Part D claims totaling $70 in drug costs for N/A beneficiaries.
Where is Susan Brown, MD located?
Susan Brown, MD is located at 8915 W GOLF RD, Niles, IL, 60714. Phone: (847) 827-9060.
What is Susan Brown, MD's NPI number?
Susan Brown, MD's National Provider Identifier (NPI) is 1003805375, issued on 10/19/2005.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,530 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 885 Medicare Part D claims per year.
What drugs does Susan Brown, MD prescribe most often?
Based on 2024 Medicare Part D data, Susan Brown, MD's most frequently prescribed drugs include Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Susan Brown, MD accept Medicare?
Susan Brown, MD appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Susan Brown, MD's credentials?
Susan Brown, MD's NPI is 1003805375 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). 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 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.