2026 NPPES data Critical Care Medicine Nurse Practitioner NPI 1497409502 APN-CNP
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ELISABETH BROWN, APN-CNP

Critical Care Medicine Nurse Practitioner in CHICAGO, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
71
Medicare Part D claims · 48 beneficiaries · Critical Care Medicine Nurse Practitioner avg: 426
What the federal data reveals: ELISABETH BROWN, APN-CNP is a Critical Care Medicine Nurse Practitioner ([object Object]) practicing in CHICAGO, Illinois with a Medicare Part D prescribing footprint of 71 claims across 48 beneficiaries .

What stands out: ELISABETH BROWN, APN-CNP filed 71 Medicare Part D claims in 2023 across CHICAGO, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ELISABETH BROWN, APN-CNP at a glance

Quality data not reported

NPI registry status

Active

Issued 02/08/2022

NPI 1497409502

Primary specialty

Critical Care Medicine Nurse Practitioner

Niche

1,410 US NPIs in this specialty

Medicare Part D claims

71 83% vs specialty avg

2023 prescription claims

Specialty avg: 426

Specialty distribution in Illinois

How Critical Care Medicine Nurse Practitioner compares to other specialties among Illinois providers

Illinois providers

Critical Care Medicine Nurse Practitioner share within Illinois

1. Critical Care Medicine Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine Nurse Practitioner share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine Nurse Practitioner) — ABMS / AOA estimate

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).

ELISABETH BROWN, APN-CNP is a Critical Care Medicine Nurse Practitioner provider practicing in CHICAGO, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APN-CNP. NPI: 1497409502. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ELISABETH BROWN, APN-CNP appears in the CMS NPPES registry as a Critical Care Medicine Nurse Practitioner provider holding APN-CNP credentials at 2320 E 93RD ST, CHICAGO, IL, 60617, with a listed phone of (773) 967-5430. NPI 1497409502 was issued on 02/08/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROWN 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 71 prescription claims written by this provider, covering 48 Medicare beneficiaries and totaling roughly $558 in drug spend. 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.

Critical Care Medicine Nurse Practitioner is a narrow specialty nationwide, with 1,410 enrolled providers across 50 states and an average of 426 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

2320 E 93RD ST
CHICAGO, IL 60617

Provider Details

NPI 1497409502
Specialty Critical Care Medicine Nurse Practitioner
Credentials APN-CNP
Gender Female
NPI Issued 02/08/2022

Hospital and facility affiliations

Facilities where ELISABETH BROWN, APN-CNP 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.

ADVOCATE HEALTH AND HOSPITALS CORPORATION
BUFFALO GROVE, IL

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

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 ELISABETH BROWN, APN-CNP. To verify ELISABETH BROWN, APN-CNP'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 2023.

71
Total Claims
$558
Total Drug Cost
48
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
71
Total Day Supply
592
Generic Drug Cost
$499
Antibiotic Claims
23

Patient Demographics

Average Patient Age
66.8 years
Avg HCC Risk Score
1.30
Gender Split
60% female / 40% male
Age Distribution
<65: 16, 65-74: 22, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Naproxen
11

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

Critical Care Medicine Nurse Practitioner Overview

How ELISABETH BROWN, APN-CNP fits within the Critical Care Medicine Nurse Practitioner landscape nationally.

1,410
Critical Care Medicine Nurse Practitioner Providers in US
50
States with Critical Care Medicine Nurse Practitioner
426
Avg Claims per Provider

ELISABETH BROWN, APN-CNP's 71 claims are below the specialty average of 426.

Nearby Critical Care Medicine Nurse Practitioner Providers in Illinois

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

Compare Critical Care Medicine Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is ELISABETH BROWN, APN-CNP's specialty?
ELISABETH BROWN, APN-CNP specializes in Critical Care Medicine Nurse Practitioner and practices in CHICAGO, Illinois. Credentials: APN-CNP.
How much does ELISABETH BROWN, APN-CNP prescribe under Medicare Part D?
In 2023, ELISABETH BROWN, APN-CNP wrote 71 Medicare Part D claims totaling $558 in drug costs for 48 beneficiaries.
Where is ELISABETH BROWN, APN-CNP located?
ELISABETH BROWN, APN-CNP is located at 2320 E 93RD ST, CHICAGO, IL, 60617. Phone: (773) 967-5430.
What is ELISABETH BROWN, APN-CNP's NPI number?
ELISABETH BROWN, APN-CNP's National Provider Identifier (NPI) is 1497409502, issued on 02/08/2022.
How many Critical Care Medicine Nurse Practitioner providers are there in the US?
There are 1,410 Critical Care Medicine Nurse Practitioner providers across 50 states in the US. The average Critical Care Medicine Nurse Practitioner provider writes 426 Medicare Part D claims per year.
What drugs does ELISABETH BROWN, APN-CNP prescribe most often?
Based on 2023 Medicare Part D data, ELISABETH BROWN, APN-CNP's most frequently prescribed drugs include Naproxen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELISABETH BROWN, APN-CNP accept Medicare?
ELISABETH BROWN, APN-CNP appears in CMS Medicare data with 71 Part D claims and 48 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELISABETH BROWN, APN-CNP's credentials?
ELISABETH BROWN, APN-CNP's NPI is 1497409502 with credentials APN-CNP. 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