2026 NPPES data Dermatopathology Physician NPI 1780667527 M.D.
Verify on CMS →

Stephanie Mengden Koon, M.D.

Dermatopathology Physician in Tigard, 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 570 in Dermatopathology Physician, 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.
MIPS score
97.8/100
▲ 15 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Stephanie Mengden Koon, M.D. reported a CMS MIPS final score of 97.8/100 - above the 83.1 national average.

97.8/100
MIPS score · +15 vs avg
Likely
board-certified (heuristic)

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.

Stephanie Mengden Koon, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

98 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Board certification likely (heuristic, not verified)

Stephanie Mengden Koon, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Stephanie Mengden Koon, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 11/25/2005

NPI 1780667527

Primary specialty

Dermatopathology Physician

Niche

570 US NPIs in this specialty

MIPS final score

97.8/100 14.7 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Oregon

How Dermatopathology Physician compares to other specialties among Oregon providers

Oregon providers
Mental Health Counselor - 12.1%Mental Health Counselor12.1%Massage Therapist - 4.8%Massage Therapist4.8%Counselor - 3.9%Counselor3.9%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Case Manager/Care Coordinator - 3.4%Case Manager/Care Coordinator3.4%Clinical Social Worker - 3.3%Clinical Social Worker3.3%Dermatopathology Physician - 0%Dermatopathology Physician0%
Largest specialties in Oregon (% of in-state providers)

Medicare quality performance, MIPS

Stephanie Mengden Koon, M.D.'s 2023 MIPS final score plotted against the Dermatopathology Physician national average

High performer (top quartile)
MIPS Final Score
97.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Dermatopathology Physician) - 97.8/100 vs national avg 83.1

0%100%National avg83%97.8%
MIPS final score (Dermatopathology Physician) - 97.8/100 vs national avg 83.1
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).

Stephanie Mengden Koon, M.D. appears in the CMS NPPES registry as a Dermatopathology Physician provider holding M.D. credentials at 12254 SW GARDEN PL, Tigard, OR, 97223, with a listed phone of (503) 906-7300. NPI 1780667527 was issued on 11/25/2005.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal, many Dermatopathology Physician providers operate outside Part D entirely. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.8/100 for the 2023 performance year (Quality 81), compared with the national average of 83.1.

Dermatopathology Physician is a narrow specialty nationwide, with 570 enrolled providers across 48 states and an average of 650 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

12254 SW GARDEN PL
Tigard, OR 97223

Provider Details

NPI 1780667527
Specialty Dermatopathology Physician
Credentials M.D.
Gender Female
NPI Issued 11/25/2005

CMS Quality Score (MIPS)

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

97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Stephanie Mengden Koon, M.D. 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.

University Professional Services
Portland, OR

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Dermatopathology Physician Overview

How Stephanie Mengden Koon, M.D. fits within the Dermatopathology Physician landscape nationally.

570
Dermatopathology Physician Providers in US
48
States with Dermatopathology Physician
650
Avg Claims per Provider

Nearby Dermatopathology Physician Providers in Oregon

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

Compare Dermatopathology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Oregon medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Dermatopathology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Stephanie Mengden Koon, M.D.'s specialty?
Stephanie Mengden Koon, M.D. specializes in Dermatopathology Physician and practices in Tigard, Oregon. Credentials: M.D..
What is Stephanie Mengden Koon, M.D.'s Medicare quality score?
Stephanie Mengden Koon, M.D. has a CMS MIPS Final Score of 97.8/100 (Quality: 81). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Stephanie Mengden Koon, M.D. located?
Stephanie Mengden Koon, M.D. is located at 12254 SW GARDEN PL, Tigard, OR, 97223. Phone: (503) 906-7300.
What is Stephanie Mengden Koon, M.D.'s NPI number?
Stephanie Mengden Koon, M.D.'s National Provider Identifier (NPI) is 1780667527, issued on 11/25/2005.
How many Dermatopathology Physician providers are there in the US?
There are 570 Dermatopathology Physician providers across 48 states in the US. The average Dermatopathology Physician provider writes 650 Medicare Part D claims per year.
Does Stephanie Mengden Koon, M.D. accept Medicare?
Stephanie Mengden Koon, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephanie Mengden Koon, M.D.'s credentials?
Stephanie Mengden Koon, M.D.'s NPI is 1780667527 with credentials M.D.. 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.
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 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

Compiled from official public sources by the PlainDoctor editorial team.