2026 NPPES data Medical Physician Assistant NPI 1447762000 PA-C
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LEX BARKER, PA-C

Medical Physician Assistant in PUYALLUP, 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
1K
Medicare Part D claims · 393 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: LEX BARKER, PA-C is a Medical Physician Assistant ([object Object]) practicing in PUYALLUP, Washington with a Medicare Part D prescribing footprint of 1K claims across 393 beneficiaries — 2% brand-name prescribing .

What stands out: LEX BARKER, PA-C filed 1,252 Medicare Part D claims in 2023 across PUYALLUP, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

LEX BARKER, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 11/03/2017

NPI 1447762000

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

1,252 16% 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).

LEX BARKER, PA-C is a Medical Physician Assistant provider practicing in PUYALLUP, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1447762000. 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.

LEX BARKER, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 11019 CANYON RD E STE A, PUYALLUP, WA, 98373, with a listed phone of (253) 537-0293. NPI 1447762000 was issued on 11/03/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARKER 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 1,252 prescription claims written by this provider, covering 393 Medicare beneficiaries and totaling roughly $20K in drug spend, split 2% brand-name and 98% generic by claim count, with an opioid prescribing rate of 44.9%. 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

11019 CANYON RD E STE A
PUYALLUP, WA 98373

Provider Details

NPI 1447762000
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 11/03/2017

Hospital and facility affiliations

Facilities where LEX BARKER, PA-C 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.

SUNNYSIDE COMMUNITY HOSPITAL ASSOCIATION
SUNNYSIDE, WA

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 — 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 LEX BARKER, PA-C. To verify LEX BARKER, PA-C'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 · Generic-heavy

LEX BARKER, PA-C — brand share 2.0%
Specialty average (est.)

2% brand-name claims vs 98% generic, on 1,252 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.

1,252
Total Claims
$20K
Total Drug Cost
393
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,304
Total Day Supply
16,203
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$6K
Generic Drug Cost
$13K
Opioid Claims
562 (44.9% rate)
Antibiotic Claims
187

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.14
Gender Split
59% female / 41% male
Age Distribution
<65: 36, 65-74: 228, 75-84: 113, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone Hcl
385
Diclofenac Sodium
189
Ondansetron Odt
Ondansetron
161
Cephalexin
159
Hydromorphone Hcl
88
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
45
Meloxicam
43
Tramadol Hcl
37
Amoxicillin
12
Eliquis
Apixaban
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 LEX BARKER, PA-C 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

LEX BARKER, PA-C's 1,252 claims are above 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 BARKER.

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

Frequently Asked Questions

What is LEX BARKER, PA-C's specialty?
LEX BARKER, PA-C specializes in Medical Physician Assistant and practices in PUYALLUP, Washington. Credentials: PA-C.
How much does LEX BARKER, PA-C prescribe under Medicare Part D?
In 2023, LEX BARKER, PA-C wrote 1,252 Medicare Part D claims totaling $20K in drug costs for 393 beneficiaries.
Where is LEX BARKER, PA-C located?
LEX BARKER, PA-C is located at 11019 CANYON RD E STE A, PUYALLUP, WA, 98373. Phone: (253) 537-0293.
What is LEX BARKER, PA-C's NPI number?
LEX BARKER, PA-C's National Provider Identifier (NPI) is 1447762000, issued on 11/03/2017.
Does LEX BARKER, PA-C prescribe more brand-name or generic drugs?
LEX BARKER, PA-C's prescribing is 2% brand-name and 98% generic drugs by claim count, with $6K in brand drug costs.
Does LEX BARKER, PA-C prescribe opioids?
Yes, LEX BARKER, PA-C had 562 opioid claims in 2023 with an opioid prescribing rate of 44.9%.
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 LEX BARKER, PA-C prescribe most often?
Based on 2023 Medicare Part D data, LEX BARKER, PA-C's most frequently prescribed drugs include Oxycodone Hcl, Diclofenac Sodium, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEX BARKER, PA-C accept Medicare?
LEX BARKER, PA-C appears in CMS Medicare data with 1,252 Part D claims and 393 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEX BARKER, PA-C's credentials?
LEX BARKER, PA-C's NPI is 1447762000 with credentials PA-C. 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