NPPES file of Aug 9, 2026

Kathleen Ying Yang, M.D.

Gynecologic Oncology Physician · Eugene, OR

Kathleen Ying Yang, M.D. is a gynecologic oncology physician with a practice address in Eugene, Oregon, and NPI 1902931587, issued on Feb 22, 2007. Check the license (Oregon MD151223, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902931587
Name
Kathleen Ying Yang
Credential
M.D.
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License numbers
MD151223 OR
A90061 CA
Self-reported in NPPES; status is on the state search
Practice location
520 Country Club Pkwy, Eugene, OR 97401
Phone
(541) 683-5001
Enumerated
Feb 22, 2007
Record last updated
Aug 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(541) 683-1422
Medicare enrollment
Enrolled (PECOS I20101110001412); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2003
Telehealth
Offers telehealth (CMS)
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 520 Country Club Pkwy

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

  1. Charles Anderson, M.D.Gynecologic Oncology Physician1215191259
  2. Linn Bergander, PA-CPhysician Assistant1184965121
  3. Glenn Buchanan, MDHematology & Oncology Physician1972589141
  4. Emily Bucholtz, RPHPharmacist1073813127
  5. Michael Bullock, MDRadiation Oncology Physician1669458758
  6. James Butrynski, M.D.Hematology & Oncology Physician1427134287

Verify Kathleen Ying Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD151223
    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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82% more Medicare Part D claims than the average gynecologic oncology physician in 2024

354 Medicare Part D claims for 137 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 100 claims were for opioids.

  1. Kathleen Yang354
  2. Specialty average195

Most prescribed

  1. Hydrocodone-Acetaminophen74 claims
  2. Eliquis36 claims
  3. Ondansetron Hcl34 claims
  4. Prochlorperazine Maleate31 claims
  5. Dexamethasone29 claims
  6. Anastrozole22 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 92.3 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 score82.4
  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. Oncology Associates OF Oregon P CEugene, OR

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

Kathleen Ying Yang among 29 gynecologic oncology physician records in Oregon

Kathleen Ying Yang, M.D. is one of 29 gynecologic oncology physician records with a practice address in Oregon. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 34% of them.

  • NPI issued2007 · 34% of these records are older, 52% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2003 · median 2008 among the 24 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecologic Oncology Physician providers in Oregon

There are 29 gynecologic oncology physician records in Oregon.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Charles Anderson, M.D.Eugene, OR 974011215191259
  2. Audrey Garrett, M.D. , MPHEugene, OR 974011063437127
  3. Jennifer Gordon, M.DEugene, OR 974011417362914
  4. Deborah Dotters, MDSpringfield, OR 974771740212232
  5. Amanda Bruegl, M.D.Portland, OR 972391700080785
  6. Amanda Compadre, MDPortland, OR 972391518461433
  7. Koenraad De Geest, MDPortland, OR 972391093702862
  8. Ross Harrison, MDPortland, OR 972391841610920

Common questions

What is Kathleen Ying Yang, M.D.'s NPI number?

Kathleen Ying Yang, M.D.'s National Provider Identifier (NPI) is 1902931587, issued on Feb 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Ying Yang, M.D. located?

The NPPES record lists a practice address at 520 Country Club Pkwy, Eugene, OR, 97401. Phone: (541) 683-5001. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Ying Yang, M.D.'s license?

NPPES lists Oregon license number MD151223, 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.

How much does Kathleen Ying Yang, M.D. prescribe under Medicare Part D?

In 2024, Kathleen Ying Yang, M.D. had 354 Medicare Part D claims for 137 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.

What is Kathleen Ying Yang, M.D.'s MIPS final score?

The 2023 MIPS final score is 92.3 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.