2026 NPPES data Gerontology Clinical Nurse Specialist NPI 1003245432 MSN, ARNP-BC
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KARA BRENNAN, MSN, ARNP-BC

Gerontology Clinical Nurse Specialist in BELLEVUE, Washington. 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
34
Medicare Part D claims · Gerontology Clinical Nurse Specialist avg: 906

What the federal data shows

KARA BRENNAN, MSN, ARNP-BC filed 34 Medicare Part D claims in 2023 as a Gerontology Clinical Nurse Specialist in BELLEVUE, Washington.

34
Part D claims, 2023

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.

KARA BRENNAN, MSN, ARNP-BC's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

34 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about KARA BRENNAN, MSN, ARNP-BC?

Quality data not reported

NPI registry status

Active

Issued 11/06/2013

NPI 1003245432

Primary specialty

Gerontology Clinical Nurse Specialist

Rare

393 US NPIs in this specialty

Medicare Part D claims

34 96% vs specialty avg

2023 prescription claims

Specialty avg: 906

Specialty distribution in Washington

How Gerontology Clinical Nurse Specialist compares to other specialties among Washington providers

Washington providers

Gerontology Clinical Nurse Specialist share within Washington

1. Gerontology Clinical Nurse Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gerontology Clinical Nurse Specialist share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Gerontology Clinical Nurse Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gerontology Clinical Nurse Specialist ABMS/AOA estimate

Est. board-certified rate (Gerontology Clinical Nurse Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gerontology Clinical Nurse Specialist) — 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).

KARA BRENNAN, MSN, ARNP-BC appears in the CMS NPPES registry as a Gerontology Clinical Nurse Specialist provider holding MSN, ARNP-BC credentials at 11522 NE 20TH ST, BELLEVUE, WA, 98004, with a listed phone of (425) 462-2531. NPI 1003245432 was issued on 11/06/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BRENNAN 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 34 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $7K 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.

Gerontology Clinical Nurse Specialist is a narrow specialty nationwide, with 393 enrolled providers across 47 states and an average of 906 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

11522 NE 20TH ST
BELLEVUE, WA 98004

Provider Details

NPI 1003245432
Specialty Gerontology Clinical Nurse Specialist
Credentials MSN, ARNP-BC
Gender Female
NPI Issued 11/06/2013

License & disciplinary context — Washington WMC 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 ~34K Washington medical licensees in 2023 — they are NOT specific to KARA BRENNAN, MSN, ARNP-BC. To verify KARA BRENNAN, MSN, ARNP-BC's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC 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 Washington 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.

34
Total Claims
$7K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
34
Total Day Supply
672
Generic Drug Cost
$702

Patient Demographics

Average Patient Age
87.8 years
Avg HCC Risk Score
3.25

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Metoprolol Tartrate
14
Clopidogrel
Clopidogrel Bisulfate
13

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

Gerontology Clinical Nurse Specialist Overview

How KARA BRENNAN, MSN, ARNP-BC fits within the Gerontology Clinical Nurse Specialist landscape nationally.

393
Gerontology Clinical Nurse Specialist Providers in US
47
States with Gerontology Clinical Nurse Specialist
906
Avg Claims per Provider

KARA BRENNAN, MSN, ARNP-BC's 34 claims are below the specialty average of 906.

Nearby Gerontology Clinical Nurse Specialist Providers in Washington

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

Compare Gerontology Clinical Nurse Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is KARA BRENNAN, MSN, ARNP-BC's specialty?
KARA BRENNAN, MSN, ARNP-BC specializes in Gerontology Clinical Nurse Specialist and practices in BELLEVUE, Washington. Credentials: MSN, ARNP-BC.
How much does KARA BRENNAN, MSN, ARNP-BC prescribe under Medicare Part D?
In 2023, KARA BRENNAN, MSN, ARNP-BC wrote 34 Medicare Part D claims totaling $7K in drug costs for N/A beneficiaries.
Where is KARA BRENNAN, MSN, ARNP-BC located?
KARA BRENNAN, MSN, ARNP-BC is located at 11522 NE 20TH ST, BELLEVUE, WA, 98004. Phone: (425) 462-2531.
What is KARA BRENNAN, MSN, ARNP-BC's NPI number?
KARA BRENNAN, MSN, ARNP-BC's National Provider Identifier (NPI) is 1003245432, issued on 11/06/2013.
How many Gerontology Clinical Nurse Specialist providers are there in the US?
There are 393 Gerontology Clinical Nurse Specialist providers across 47 states in the US. The average Gerontology Clinical Nurse Specialist provider writes 906 Medicare Part D claims per year.
What drugs does KARA BRENNAN, MSN, ARNP-BC prescribe most often?
Based on 2023 Medicare Part D data, KARA BRENNAN, MSN, ARNP-BC's most frequently prescribed drugs include Metoprolol Tartrate, Clopidogrel. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KARA BRENNAN, MSN, ARNP-BC accept Medicare?
KARA BRENNAN, MSN, ARNP-BC appears in CMS Medicare data with 34 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KARA BRENNAN, MSN, ARNP-BC's credentials?
KARA BRENNAN, MSN, ARNP-BC's NPI is 1003245432 with credentials MSN, ARNP-BC. 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