Yolanda Tseng, MD
Radiation Oncology Physician · Seattle, WA
Yolanda Tseng, MD is a radiation oncology physician with a practice address in Seattle, Washington, and NPI 1588892749, issued on Jun 26, 2009. Check the license (Washington MD60450542, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Yolanda Tseng
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- MD60450542 WA
249551 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1570 N 115TH St, Seattle, WA 98133
- Phone
- (206) 306-2804
- Enumerated
- Jun 26, 2009
- Record last updated
- Aug 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 1588892749 WA
- Medicare enrollment
- Enrolled (PECOS I20140619000790); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 198 in Washington → Look up another NPI →
Also registered at 1570 N 115TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Smith Apisarnthanarax, MDRadiation Oncology Physician1184839722
- Michael Brawer, MDUrology Physician1295712651
- James Joki, MDObstetrics & Gynecology Physician1588660781
- Suji LeeNephrology Physician1245296094
- Kiwan Paik, M.D.Family Medicine Physician1912904285
- Ramesh Rengan, MD. PHDRadiation Oncology Physician1801981428
Verify Yolanda Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60450542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average radiation oncology physician in 2024
41 Medicare Part D claims for 16 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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): 93.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yolanda Tseng among 198 radiation oncology physician records in Washington
Yolanda Tseng, MD is one of 198 radiation oncology physician records with a practice address in Washington. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2009 · median 2006 among the 141 with a school on file
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Washington
There are 198 radiation oncology physician records in Washington.
All 198 in Washington → Every provider in Seattle → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Smith Apisarnthanarax, MDSeattle, WA 981331184839722
- Daniel Landis, M.D.Seattle, WA 981331013930643
- Robert Meier, M.D.Seattle, WA 981331215950704
- Ramesh Rengan, MD. PHDSeattle, WA 981331801981428
- Waylene Swensen, MDSeattle, WA 981331104901933
- James Brashears, MDSeattle, WA 981221720177819
- Charles Leyrer, M.D.Seattle, WA 981221518301464
- Sandra Vermeulen, M.D.Seattle, WA 981221578586962
Common questions
What is Yolanda Tseng, MD's NPI number?
Yolanda Tseng, MD's National Provider Identifier (NPI) is 1588892749, issued on Jun 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Yolanda Tseng, MD located?
The NPPES record lists a practice address at 1570 N 115TH St, Seattle, WA, 98133. Phone: (206) 306-2804. Providers update this record themselves, so call before visiting.
How can I verify Yolanda Tseng, MD's license?
NPPES lists Washington license number MD60450542, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Yolanda Tseng, MD prescribe under Medicare Part D?
In 2024, Yolanda Tseng, MD had 41 Medicare Part D claims for 16 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Yolanda Tseng, MD's MIPS final score?
The 2023 MIPS final score is 93.1 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.