2026 NPPES data Nurse Practitioner NPI 1639650138 ARNP
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Elizabeth Poli, ARNP

Nurse Practitioner in Mount Vernon, Washington.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
622
Medicare Part D claims · 238 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

Elizabeth Poli, ARNP filed 622 Medicare Part D claims in 2024 as a Nurse Practitioner in Mount Vernon, Washington, prescribing 87% generic.

622
Part D claims, 2024
87%
generic prescribing
≥68th
pct by Part D claim volume (lower-bound band)

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.

Federal trust snapshot

What official records show about Elizabeth Poli, ARNP

Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1639650138), first enumerated 08/23/2018.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 622 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • State context

    State board disciplinary context

    Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Elizabeth Poli, ARNP's individual license status. Verify directly with the state medical board.

    Source: WMC annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1639650138 · Nurse Practitioner

NPI-10 · ENUM-RECENT · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1639650138
  • ENUM-RECENT 2018
  • TAX-MEGA 90K Nurse Practitioner
  • RX-LIGHT 622
  • BOOK-LIGHT 2,124 in Washington
  • PHOTO-ENUM Haley Rothrock, FNP · 2018

Elizabeth Poli, ARNP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2024, across all CMS prescribers nationally

622 ≥ 68th percentile 68% of 1,416,883 prescribers are in lower value bands

0–200: 679,947 prescribers (48%). Below this entry. 200–400: 188,835 prescribers (13%). Below this entry. 400–600: 95,866 prescribers (7%). Below this entry. 600–800: 60,107 prescribers (4%). This entry sits in this band. 800–1,000: 43,043 prescribers (3%). Above this entry. 1,000–1,200: 33,612 prescribers (2%). Above this entry. 1,200–1,400: 27,889 prescribers (2%). Above this entry. 1,400–1,600: 23,183 prescribers (2%). Above this entry. 1,600–1,800: 19,917 prescribers (1%). Above this entry. 1,800–2,000: 17,585 prescribers (1%). Above this entry. 2K+: 226,899 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.

The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.

Source CMS Medicare Part D Prescriber Public Use File · 2024

What does the federal data show about Elizabeth Poli, ARNP?

Quality data not reported

NPI registry status

Active

Issued 08/23/2018

NPI 1639650138

Primary specialty

Nurse Practitioner

High-volume

89,808 US NPIs in this specialty

Medicare Part D claims

622 46% vs specialty avg

2024 prescription claims

Specialty avg: 1,144

Specialty distribution in Washington

How Nurse Practitioner compares to other specialties among Washington providers

Washington providers
Mental Health Counselor8.5%Massage Therapist6.4%Counselor5.7%Behavior Technician4.7%Pharmacist3.8%Physical Therapist3.6%Nurse Practitioner1%
Largest specialties in Washington (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nurse Practitioner. Verify directly:

How MIPS and board certification work

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).

Practice Address

307 S 13TH ST
Mount Vernon, WA 98274

Provider Details

NPI 1639650138
Specialty Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 08/23/2018

Hospital and facility affiliations

Facilities where Elizabeth Poli, ARNP 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.

Public Hospital Dist NO 1 Skagit
Mount Vernon, 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 Elizabeth Poli, ARNP. To verify Elizabeth Poli, 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

Elizabeth Poli, ARNP - brand share 13.0%
Nurse Practitioner average

13% brand-name claims vs 87% generic, on 622 2024 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 2024.

622
Total Claims
$388K
Total Drug Cost
238
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
923.733
Total Day Supply
24,618
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$378K
Generic Drug Cost
$10K
Opioid Claims
56 (9.0% rate)
Antibiotic Claims
22

Patient Demographics

Average Patient Age
74.4 years
Avg HCC Risk Score
2.19
Gender Split
60% female / 40% male
Age Distribution
<65: 15, 65-74: 105, 75-84: 93, 85+: 25

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Elizabeth Poli, ARNP prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Anastrozole
33
Letrozole
33
Lorazepam
27
Triamcinolone Acetonide
26
Gabapentin
24
Potassium Chloride
24
Prednisone
22
Levothyroxine Sodium
21
Xtandi
Enzalutamide
20
Oxycodone Hcl
17

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

Nurse Practitioner Overview

How Elizabeth Poli, ARNP fits within the Nurse Practitioner landscape nationally.

89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider

Elizabeth Poli, ARNP's 622 claims are below the specialty average of 1,144.

Nationwide Nurse Practitioner peers with similar MIPS or enrollment year

Two federal-record peer sets for Poli, both outside Washington so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2018)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Nurse Practitioner Providers in Washington

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

One of 2,124 Nurse Practitioner providers enrolled in Washington, 5 are shown here.

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is Elizabeth Poli, ARNP's specialty?
Elizabeth Poli, ARNP specializes in Nurse Practitioner and practices in Mount Vernon, Washington. Credentials: ARNP.
How much does Elizabeth Poli, ARNP prescribe under Medicare Part D?
In 2024, Elizabeth Poli, ARNP wrote 622 Medicare Part D claims totaling $388K in drug costs for 238 beneficiaries.
Where is Elizabeth Poli, ARNP located?
Elizabeth Poli, ARNP is located at 307 S 13TH ST, Mount Vernon, WA, 98274. Phone: (360) 814-2146.
What is Elizabeth Poli, ARNP's NPI number?
Elizabeth Poli, ARNP's National Provider Identifier (NPI) is 1639650138, issued on 08/23/2018.
Does Elizabeth Poli, ARNP prescribe more brand-name or generic drugs?
Elizabeth Poli, ARNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $378K in brand drug costs.
Does Elizabeth Poli, ARNP prescribe opioids?
Yes, Elizabeth Poli, ARNP had 56 opioid claims in 2024 with an opioid prescribing rate of 9.0%.
How many Nurse Practitioner providers are there in the US?
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Elizabeth Poli, ARNP prescribe most often?
Based on 2024 Medicare Part D data, Elizabeth Poli, ARNP's most frequently prescribed drugs include Anastrozole, Letrozole, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Elizabeth Poli, ARNP accept Medicare?
Elizabeth Poli, ARNP appears in CMS Medicare data with 622 Part D claims and 238 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Elizabeth Poli, ARNP's credentials?
Elizabeth Poli, ARNP's NPI is 1639650138 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

View source datasets and methodology notes
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 (2024). 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 August 2026 (NPPES) / 2024 (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

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.