2026 NPPES data Medical Physician Assistant NPI 1639166176 PAC
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KATHRYN HACKNEY, PAC

Medical Physician Assistant in SHELTON, 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
721
Medicare Part D claims · 85 beneficiaries · Medical Physician Assistant avg: 1K

What the federal data shows

KATHRYN HACKNEY, PAC filed 721 Medicare Part D claims in 2023 as a Medical Physician Assistant in SHELTON, Washington.

721
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.

KATHRYN HACKNEY, PAC's Medicare Part D volume vs every U.S. prescriber

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

721 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 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 KATHRYN HACKNEY, PAC?

Quality data not reported

NPI registry status

Active

Issued 09/30/2005

NPI 1639166176

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

721 33% 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).

KATHRYN HACKNEY, PAC appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PAC credentials at 237 PROFESSIONAL WAY, SHELTON, WA, 98584, with a listed phone of (360) 426-2500. NPI 1639166176 was issued on 09/30/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HACKNEY 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 721 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $80K 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.

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

237 PROFESSIONAL WAY
SHELTON, WA 98584

Provider Details

NPI 1639166176
Specialty Medical Physician Assistant
Credentials PAC
Gender Female
NPI Issued 09/30/2005

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 KATHRYN HACKNEY, PAC. To verify KATHRYN HACKNEY, PAC'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.

721
Total Claims
$80K
Total Drug Cost
85
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,637
Total Day Supply
48,051
Generic Drug Cost
$17K
Antibiotic Claims
16

Patient Demographics

Average Patient Age
70.0 years
Avg HCC Risk Score
0.85
Gender Split
79% female / 21% male

Top Prescribed Drugs (Medicare Part D)

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

What KATHRYN HACKNEY, PAC prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Lisinopril
64
Atorvastatin Calcium
59
Levothyroxine Sodium
33
Metformin Hcl Er
Metformin Hcl
32
Metoprolol Succinate
25
Rosuvastatin Calcium
24
Amlodipine Besylate
23
Fluticasone Propionate
14
Incruse Ellipta
Umeclidinium Bromide
14
Alendronate Sodium
12

* 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 KATHRYN HACKNEY, PAC 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

KATHRYN HACKNEY, PAC's 721 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 HACKNEY.

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

Frequently Asked Questions

What is KATHRYN HACKNEY, PAC's specialty?
KATHRYN HACKNEY, PAC specializes in Medical Physician Assistant and practices in SHELTON, Washington. Credentials: PAC.
How much does KATHRYN HACKNEY, PAC prescribe under Medicare Part D?
In 2023, KATHRYN HACKNEY, PAC wrote 721 Medicare Part D claims totaling $80K in drug costs for 85 beneficiaries.
Where is KATHRYN HACKNEY, PAC located?
KATHRYN HACKNEY, PAC is located at 237 PROFESSIONAL WAY, SHELTON, WA, 98584. Phone: (360) 426-2500.
What is KATHRYN HACKNEY, PAC's NPI number?
KATHRYN HACKNEY, PAC's National Provider Identifier (NPI) is 1639166176, issued on 09/30/2005.
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 KATHRYN HACKNEY, PAC prescribe most often?
Based on 2023 Medicare Part D data, KATHRYN HACKNEY, PAC's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHRYN HACKNEY, PAC accept Medicare?
KATHRYN HACKNEY, PAC appears in CMS Medicare data with 721 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHRYN HACKNEY, PAC's credentials?
KATHRYN HACKNEY, PAC's NPI is 1639166176 with credentials PAC. 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