NPI registry status
Active
2026 NPPES data Oncology Clinical Nurse Specialist NPI 1225200702 APN
Verify on CMS → Mary Brush, APN
Oncology Clinical Nurse Specialist in Maywood, 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 230 in Oncology Clinical Nurse Specialist, 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
Mary Brush, APN is an Oncology Clinical Nurse Specialist in Maywood, Illinois, listed in the federal CMS National Provider Identifier registry.
- #289
- Oncology Clinical Nurse Specialist rank among Illinois 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 Mary Brush, APN
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1225200702), first enumerated 03/25/2008.
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
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Mary Brush, APN'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 Brush with other Oncology Clinical Nurse Specialist providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Illinois
- Susan Budds, RN, MSN, APN Naperville, IL
- Mary Callaghan, APRN, CNS Chicago, IL
- Maryanne Fishman, R.N., M.S., A.O.C.N. Chicago, IL
- Evelyn Gallinaitis, APN Maywood, IL
- Karen Giammicchio, APRN AOCNS Schaumburg, IL
- Barbara Gordon, MSN Chicago, IL
Other specialties in Maywood: Student in an Organized Health Care Education/Training Program (572) · Internal Medicine Physician (293) · Anesthesiology Physician (119) · Surgery Physician (102)
CMS NPPES provider registry desk
NPI 1225200702 · Oncology Clinical Nurse Specialist
NPI-10 · ENUM-MID · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1225200702
- ENUM-MID 2008
- TAX-TRACE 230
- RX-NONE No Part D
- BOOK-THIN 23 in Illinois
- PHOTO-ENUM Juli Johnson, APRN,CNS · 2008
What does the federal data show about Mary Brush, APN?
Quality data not reportedPrimary specialty
Oncology Clinical Nurse Specialist
Specialty distribution in Illinois
How Oncology Clinical Nurse Specialist compares to other specialties among Illinois 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 Oncology Clinical Nurse Specialist. 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
Provider Details
| NPI | 1225200702 |
|---|---|
| Specialty | Oncology Clinical Nurse Specialist |
| Credentials | APN |
| Gender | Female |
| NPI Issued | 03/25/2008 |
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 Mary Brush, APN. To verify Mary Brush, APN'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.
Oncology Clinical Nurse Specialist Overview
How Mary Brush, APN fits within the Oncology Clinical Nurse Specialist landscape nationally.
230
Oncology Clinical Nurse Specialist Providers in US
41
States with Oncology Clinical Nurse Specialist
420
Avg Claims per Provider
Nationwide Oncology Clinical Nurse Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Brush, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Oncology Clinical Nurse Specialist Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Brush.
One of 23 Oncology Clinical Nurse Specialist providers enrolled in Illinois, 11 are shown on this page.
Margaret Gregus
Hinsdale, IL
Linda Janisch
Chicago, IL
Carole Martz
CNS
Highland Park, IL
Margaret Ondrey
RN, CNS
Kankakee, IL
Joann Petty
APN CNS
Warrenville, IL
Compare Oncology Clinical Nurse Specialist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mary Brush, APN's specialty? ▼
Mary Brush, APN specializes in Oncology Clinical Nurse Specialist and practices in Maywood, Illinois. Credentials: APN.
Where is Mary Brush, APN located? ▼
Mary Brush, APN is located at 2160 S 1ST AVE, Maywood, IL, 60153. Phone: (708) 327-3019.
What is Mary Brush, APN's NPI number? ▼
Mary Brush, APN's National Provider Identifier (NPI) is 1225200702, issued on 03/25/2008.
How many Oncology Clinical Nurse Specialist providers are there in the US? ▼
There are 230 Oncology Clinical Nurse Specialist providers across 41 states in the US. The average Oncology Clinical Nurse Specialist provider writes 420 Medicare Part D claims per year.
Does Mary Brush, APN accept Medicare? ▼
Mary Brush, APN appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Brush, APN's credentials? ▼
Mary Brush, APN's NPI is 1225200702 with credentials APN. 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.