Ian Yen Ch'En, MD
Diagnostic Radiology Physician · Lynnwood, WA
Ian Yen Ch'En, MD is a diagnostic radiology physician with a practice address in Lynnwood, Washington, and NPI 1174527121, issued on Jun 8, 2005. Check the license (Washington MD00033869, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Ian Yen Ch'En
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- MD00033869 WA
A00052836 CA
M-12434 ID
Self-reported in NPPES; status is on the state search - Practice location
- 19020 33RD Ave W Ste 210, Lynnwood, WA 98036
- Phone
- (425) 563-1500
- Enumerated
- Jun 8, 2005
- Record last updated
- Mar 5, 2026
- Fax
- (425) 563-1501
- Medicaid ID
- 8198590 WA
- Medicare enrollment
- Enrolled (PECOS I20040723000019); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 1989
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,041 in Washington → Look up another NPI →
Also registered at 19020 33RD Ave W Ste 210
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ian Yen Ch'En in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00033869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 6 group practices
- Evergreen Radia LLCKirkland, WA
- Okanogan County Public Hospital District NO. 3Omak, WA
- Radia Inc P SBellevue, WA
- Swedish Health ServicesEverett, WA
- Swedish Health ServicesSeattle, WA
- Swedish Radia Imaging Center AT Edmonds LLCEdmonds, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Yen Ch'En among 1,041 diagnostic radiology physician records in Washington
Ian Yen Ch'En, MD is one of 1,041 diagnostic radiology physician records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1989 · median 2004 among the 682 with a school on file
- Record last updated2026 · 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 2085R0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
119 diagnostic radiology physician records list a practice address in Lynnwood
They are 119 of the 2,501 NPPES records with a practice address in Lynnwood, and 1,041 diagnostic radiology physician records in Washington.
All 1,041 in Washington → Every provider in Lynnwood → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Larry Anderson, M.D.Lynnwood, WA 980361215924774
- David Atkins, MDLynnwood, WA 980361588651236
- James Bell, MDLynnwood, WA 980361417942269
- Kara Carlson, M.D.Lynnwood, WA 980361356338818
- Arthur Castagno, M.D.Lynnwood, WA 980361376530048
- Alan Chan, MDLynnwood, WA 980361609863240
- Maria Chong, MDLynnwood, WA 980361295712396
- Elizabeth Cotter, M.D.Lynnwood, WA 980361902890700
Common questions
What is Ian Yen Ch'En, MD's NPI number?
Ian Yen Ch'En, MD's National Provider Identifier (NPI) is 1174527121, issued on Jun 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ian Yen Ch'En, MD located?
The NPPES record lists a practice address at 19020 33RD Ave W Ste 210, Lynnwood, WA, 98036. Phone: (425) 563-1500. Providers update this record themselves, so call before visiting.
How can I verify Ian Yen Ch'En, MD's license?
NPPES lists Washington license number MD00033869, 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.
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.