PlainDoctor

2026 NPPES data Primary Care Nurse Practitioner NPI 1235571936 DNP, ARNP
Verify on CMS →

Nathan Scadlock, DNP, ARNP

Primary Care Nurse Practitioner in Eugene, Oregon.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,597 in Primary Care 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
21
Medicare Part D claims · Primary Care Nurse Practitioner avg: 1K
MIPS score
91.1/100
▲ 8 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Nathan Scadlock, DNP, ARNP reported a CMS MIPS final score of 91.1/100 - above the 83.5 national average - and filed 21 Medicare Part D claims in 2024.

91.1/100
MIPS score · +8 vs avg
21
Part D claims, 2024
≥61st
pct among measured MIPS (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 Nathan Scadlock, DNP, ARNP

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1235571936), first enumerated 07/23/2013.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 21 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 91.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • 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 1235571936 · Primary Care Nurse Practitioner

NPI-10 · ENUM-MID · TAX-MID · MIPS-ABOVE · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1235571936
  • ENUM-MID 2013
  • TAX-MID 11K Primary Care
  • MIPS-ABOVE 91.1/100
  • RX-TRACE 21
  • BOOK-THIN 93 in Oregon
  • PHOTO-FINISH Shante Brady, FNP · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Nathan Scadlock, DNP, ARNP's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

91 ≥ 61st percentile 61% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Nathan Scadlock, DNP, ARNP sits

This provider among primary care nurse practitioner peers

Across the 926 primary care nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Nathan Scadlock, DNP, ARNP writes more Part D claims than 3% of them and scores higher on MIPS quality than 61% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 27Nathan Scadlock, DNP, ARNP, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 61
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one primary care nurse practitioner peer from a representative sample of 60; the gold marker is Nathan Scadlock, DNP, ARNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Nathan Scadlock, DNP, ARNP?

High performer (top quartile)

NPI registry status

Active

Issued 07/23/2013

NPI 1235571936

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,597 US NPIs in this specialty

Medicare Part D claims

21 99% vs specialty avg

2024 prescription claims

Specialty avg: 1,471

MIPS final score

91.1/100 7.6 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Oregon

How Primary Care Nurse Practitioner compares to other specialties among Oregon providers

Oregon providers
Mental Health Counselor12.1%Massage Therapist4.8%Counselor3.8%Addiction (Substance Use Dis…3.5%Student in an Organized Heal…3.4%Clinical Social Worker3.4%Primary Care Nurse Practitio…0.1%
Largest specialties in Oregon (% of in-state providers)

Medicare quality performance, MIPS

Nathan Scadlock, DNP, ARNP's 2023 MIPS final score plotted against the Primary Care Nurse Practitioner national average

High performer (top quartile)
MIPS Final Score
91.1/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%91.1%
MIPS final score (Primary Care Nurse Practitioner) - 91.1/100 vs national avg 83.5
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

1650 CHAMBERS ST
Eugene, OR 97402
(541) 686-1711

Provider Details

NPI 1235571936
Specialty Primary Care Nurse Practitioner
Credentials DNP, ARNP
Gender Male
NPI Issued 07/23/2013

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

91.0695
Final Score
Measured-score avg: 83.5
94.2388
Quality
75.9928
Cost
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

21
Total Claims
$222
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
60.667
Total Day Supply
1,805
Brand Drug Cost
$0
Generic Drug Cost
$222

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
0.82
More Primary Care Nurse Practitioner in OR → All providers in Oregon → Compare specialties →

Primary Care Nurse Practitioner Overview

How Nathan Scadlock, DNP, ARNP fits within the Primary Care Nurse Practitioner landscape nationally.

10,597
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,471
Avg Claims per Provider

Nathan Scadlock, DNP, ARNP's 21 claims are below the specialty average of 1,471.

Nationwide Primary Care Nurse Practitioner peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (91.1 here).

Meg Moser 91 CA Shante Brady 91.1 NY Kristin Butterfield 91 NE Mandi Brown 91.2 OK

Same NPPES enumeration year (2013)

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

Sharleen Ballance Glendale, AZ Samuel Paris Franklin, TN Sandra Glenney Middletown, CT Ryan Loveland Cincinnati, OH

Nearby Primary Care Nurse Practitioner Providers in Oregon

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

One of 93 Primary Care Nurse Practitioner providers enrolled in Oregon, 5 are shown here.

Suzanne Ahn
M.S., FNP-C
Portland, OR
Melissa Akin
NP
Ontario, OR
Rebecca Ames
Portland, OR
Stacey Andrews
FNP
Medford, OR
Mariela Arnold
APRN
Junction City, OR

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

Frequently Asked Questions

What is Nathan Scadlock, DNP, ARNP's specialty? ▼
Nathan Scadlock, DNP, ARNP specializes in Primary Care Nurse Practitioner and practices in Eugene, Oregon. Credentials: DNP, ARNP.
How much does Nathan Scadlock, DNP, ARNP prescribe under Medicare Part D? ▼
In 2024, Nathan Scadlock, DNP, ARNP wrote 21 Medicare Part D claims totaling $222 in drug costs for N/A beneficiaries.
What is Nathan Scadlock, DNP, ARNP's Medicare quality score? ▼
Nathan Scadlock, DNP, ARNP has a CMS MIPS Final Score of 91.1/100 (Quality: 94.2, Cost: 76). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Nathan Scadlock, DNP, ARNP located? ▼
Nathan Scadlock, DNP, ARNP is located at 1650 CHAMBERS ST, Eugene, OR, 97402. Phone: (541) 686-1711.
What is Nathan Scadlock, DNP, ARNP's NPI number? ▼
Nathan Scadlock, DNP, ARNP's National Provider Identifier (NPI) is 1235571936, issued on 07/23/2013.
How many Primary Care Nurse Practitioner providers are there in the US? ▼
There are 10,597 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,471 Medicare Part D claims per year.
Does Nathan Scadlock, DNP, ARNP accept Medicare? ▼
Nathan Scadlock, DNP, ARNP appears in CMS Medicare data with 21 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nathan Scadlock, DNP, ARNP's credentials? ▼
Nathan Scadlock, DNP, ARNP's NPI is 1235571936 with credentials DNP, 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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

Compiled from official public sources by the editorial process.

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.