NPPES file of Aug 9, 2026

Stephanie J. Mengden Koon, M.D.

Dermatopathology Physician · Tigard, OR

Stephanie J. Mengden Koon, M.D. is a dermatopathology physician with a practice address in Tigard, Oregon, and NPI 1780667527, issued on Nov 25, 2005. Check the license (Oregon MD28731, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780667527
Name
Stephanie J. Mengden Koon
Credential
M.D.
Primary taxonomy
Dermatopathology Physician 207ND0900X
License number
MD28731 OR
Self-reported in NPPES; status is on the state search
Practice location
12254 SW Garden PL, Tigard, OR 97223
Phone
(503) 906-7300
Enumerated
Nov 25, 2005
Record last updated
Nov 2, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(503) 245-8219
Medicare enrollment
Enrolled (PECOS I20081117000114); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At San Antonio, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 12254 SW Garden PL

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrea Chakrapani, M.D.Dermatopathology (Pathology) Physician1659514958
  2. Frank Kratochvil, DDSOral and Maxillofacial Surgery (Dentist)1972564847

Verify Stephanie J. Mengden Koon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD28731
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The MIPS final score for 2023 (Medicare payment program): 97.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. University Professional ServicesPortland, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dermatopathology Physician providers in Oregon

There are 8 dermatopathology physician records in Oregon.

The 7 dermatopathology physician records with the nearest ZIP codes

  1. Oluwadamilare Ajayi, MDPortland, OR 972391063948487
  2. Clifton White, MDPortland, OR 972391568478022
  3. Kevin White, MDPortland, OR 972391447329719
  4. Angela Bohlke, M.D.Salem, OR 973021649453390
  5. Alison Carrigg, DOWoodburn, OR 970711245554211
  6. Gabriel Currie, M.D.Wilsonville, OR 970701942513924
  7. Aaron Loyd, MDHood River, OR 970311306029590

Common questions

What is Stephanie J. Mengden Koon, M.D.'s NPI number?

Stephanie J. Mengden Koon, M.D.'s National Provider Identifier (NPI) is 1780667527, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie J. Mengden Koon, M.D. located?

The NPPES record lists a practice address at 12254 SW Garden PL, Tigard, OR, 97223. Phone: (503) 906-7300. Providers update this record themselves, so call before visiting.

How can I verify Stephanie J. Mengden Koon, M.D.'s license?

NPPES lists Oregon license number MD28731, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Stephanie J. Mengden Koon, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.