2026 NPPES data Medical Physician Assistant NPI 1043581101
Verify on CMS →

KATHERINE BENNETT

Medical Physician Assistant 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
564
Medicare Part D claims · 123 beneficiaries · Medical Physician Assistant avg: 1K
Industry payments
$59.94
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KATHERINE BENNETT is a Medical Physician Assistant ([object Object]) practicing in SEATTLE, Washington with a Medicare Part D prescribing footprint of 564 claims across 123 beneficiaries . Industry payments of $59.94 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KATHERINE BENNETT filed 564 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 BENNETT at a glance

Quality data not reported

NPI registry status

Active

Issued 01/21/2012

NPI 1043581101

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

564 48% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Washington

How Medical Physician Assistant compares to other specialties among Washington providers

Washington providers

Medical Physician Assistant share within Washington

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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 BENNETT is a Medical Physician Assistant provider practicing in SEATTLE, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1043581101. 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 BENNETT appears in the CMS NPPES registry as a Medical Physician Assistant provider at 5316 RAINIER AVE S, SEATTLE, WA, 98118, with a listed phone of (206) 721-5600. NPI 1043581101 was issued on 01/21/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BENNETT 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 564 prescription claims written by this provider, covering 123 Medicare beneficiaries and totaling roughly $28K in drug spend, with an opioid prescribing rate of 3.4%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

5316 RAINIER AVE S
SEATTLE, WA 98118

Provider Details

NPI 1043581101
Specialty Medical Physician Assistant
Gender Female
NPI Issued 01/21/2012

Hospital and facility affiliations

Facilities where KATHERINE BENNETT 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.

KAISER FOUNDATION HEALTH PLAN OF WASHINGTON
SEATTLE, WA
SELECT OUTPATIENT SERVICES INC
GLENVIEW, IL
SELECT REHABILITATION, LLC
GLENVIEW, 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).

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 BENNETT. Source: openpaymentsdata.cms.gov.

Total received

$60

Largest payer

Abbott Laboratories

Most common payment type

Long term medical supply or device loan

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 BENNETT. To verify KATHERINE BENNETT'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.

564
Total Claims
$28K
Total Drug Cost
123
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,225
Total Day Supply
34,852
Generic Drug Cost
$8K
Opioid Claims
19 (3.4% rate)

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.00
Gender Split
68% female / 32% 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
Atorvastatin Calcium
43
Losartan Potassium
20
Metformin Hcl
20
Amlodipine Besylate
19
Omeprazole
19
Arexvy
Rsvpref3 Antigen/As01e/Pf
18
Lisinopril
18
Alvesco
Ciclesonide
16
Albuterol Sulfate Hfa
Albuterol Sulfate
15
Levothyroxine Sodium
14

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

Medical Physician Assistant Overview

How KATHERINE BENNETT fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

KATHERINE BENNETT's 564 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Washington

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHERINE BENNETT's specialty?
KATHERINE BENNETT specializes in Medical Physician Assistant and practices in SEATTLE, Washington.
How much does KATHERINE BENNETT prescribe under Medicare Part D?
In 2023, KATHERINE BENNETT wrote 564 Medicare Part D claims totaling $28K in drug costs for 123 beneficiaries.
Where is KATHERINE BENNETT located?
KATHERINE BENNETT is located at 5316 RAINIER AVE S, SEATTLE, WA, 98118. Phone: (206) 721-5600.
What is KATHERINE BENNETT's NPI number?
KATHERINE BENNETT's National Provider Identifier (NPI) is 1043581101, issued on 01/21/2012.
Does KATHERINE BENNETT prescribe opioids?
Yes, KATHERINE BENNETT had 19 opioid claims in 2023 with an opioid prescribing rate of 3.4%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does KATHERINE BENNETT prescribe most often?
Based on 2023 Medicare Part D data, KATHERINE BENNETT's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHERINE BENNETT accept Medicare?
KATHERINE BENNETT appears in CMS Medicare data with 564 Part D claims and 123 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHERINE BENNETT's credentials?
KATHERINE BENNETT's NPI is 1043581101. 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