2026 NPPES data Women's Health Nurse Practitioner NPI 1891009650 ARNP
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KATHERINE BEHNING, ARNP

Women's Health Nurse Practitioner in SEATTLE, 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
418
Medicare Part D claims · 179 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$102.91
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KATHERINE BEHNING, ARNP is a Women's Health Nurse Practitioner ([object Object]) practicing in SEATTLE, Washington with a Medicare Part D prescribing footprint of 418 claims across 179 beneficiaries — 13% brand-name prescribing . Industry payments of $102.91 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KATHERINE BEHNING, ARNP filed 418 Medicare Part D claims in 2023 across SEATTLE, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KATHERINE BEHNING, ARNP at a glance

Quality data not reported

NPI registry status

Active

Issued 08/03/2010

NPI 1891009650

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

418 60% vs specialty avg

2023 prescription claims

Specialty avg: 262

Specialty distribution in Washington

How Women's Health Nurse Practitioner compares to other specialties among Washington providers

Washington providers

Women's Health Nurse Practitioner share within Washington

1. Women's Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Women's Health Nurse Practitioner share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Women's Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Women's Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Women's Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Women's Health 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).

KATHERINE BEHNING, ARNP is a Women's Health Nurse Practitioner provider practicing in SEATTLE, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: ARNP. NPI: 1891009650. 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.

KATHERINE BEHNING, ARNP appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding ARNP credentials at 509 OLIVE WAY STE 1454, SEATTLE, WA, 98101, with a listed phone of (206) 572-2444. NPI 1891009650 was issued on 08/03/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BEHNING 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 418 prescription claims written by this provider, covering 179 Medicare beneficiaries and totaling roughly $56K in drug spend, split 13% brand-name and 87% generic by claim count. 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.

Women's Health Nurse Practitioner is a mid-sized specialty nationwide, with 9,452 enrolled providers across 55 states and an average of 262 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

509 OLIVE WAY STE 1454
SEATTLE, WA 98101

Provider Details

NPI 1891009650
Specialty Women's Health Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 08/03/2010

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for KATHERINE BEHNING, ARNP. Source: openpaymentsdata.cms.gov.

Total received

$103

Largest payer

Astellas Pharma US Inc

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 KATHERINE BEHNING, ARNP. To verify KATHERINE BEHNING, ARNP'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.

Brand vs generic prescribing mix · Typical

KATHERINE BEHNING, ARNP — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 418 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

418
Total Claims
$56K
Total Drug Cost
179
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
963
Total Day Supply
26,928
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$26K
Generic Drug Cost
$30K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
0.93
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
165
Estring
Estradiol
21
Acyclovir
20
Clobetasol Propionate
17
Triamcinolone Acetonide
17
Estradiol (Once Weekly)
Estradiol
16
Metronidazole
15
Fluconazole
14
Valacyclovir
Valacyclovir Hcl
14

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

Women's Health Nurse Practitioner Overview

How KATHERINE BEHNING, ARNP fits within the Women's Health Nurse Practitioner landscape nationally.

9,452
Women's Health Nurse Practitioner Providers in US
55
States with Women's Health Nurse Practitioner
262
Avg Claims per Provider

KATHERINE BEHNING, ARNP's 418 claims are above the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in Washington

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

Compare Women's Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHERINE BEHNING, ARNP's specialty?
KATHERINE BEHNING, ARNP specializes in Women's Health Nurse Practitioner and practices in SEATTLE, Washington. Credentials: ARNP.
How much does KATHERINE BEHNING, ARNP prescribe under Medicare Part D?
In 2023, KATHERINE BEHNING, ARNP wrote 418 Medicare Part D claims totaling $56K in drug costs for 179 beneficiaries.
Where is KATHERINE BEHNING, ARNP located?
KATHERINE BEHNING, ARNP is located at 509 OLIVE WAY STE 1454, SEATTLE, WA, 98101. Phone: (206) 572-2444.
What is KATHERINE BEHNING, ARNP's NPI number?
KATHERINE BEHNING, ARNP's National Provider Identifier (NPI) is 1891009650, issued on 08/03/2010.
Does KATHERINE BEHNING, ARNP prescribe more brand-name or generic drugs?
KATHERINE BEHNING, ARNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $26K in brand drug costs.
How many Women's Health Nurse Practitioner providers are there in the US?
There are 9,452 Women's Health Nurse Practitioner providers across 55 states in the US. The average Women's Health Nurse Practitioner provider writes 262 Medicare Part D claims per year.
What drugs does KATHERINE BEHNING, ARNP prescribe most often?
Based on 2023 Medicare Part D data, KATHERINE BEHNING, ARNP's most frequently prescribed drugs include Estradiol, Estring, Acyclovir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHERINE BEHNING, ARNP accept Medicare?
KATHERINE BEHNING, ARNP appears in CMS Medicare data with 418 Part D claims and 179 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHERINE BEHNING, ARNP's credentials?
KATHERINE BEHNING, ARNP's NPI is 1891009650 with credentials ARNP. 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