Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Ian Yen Ch'En, MD

Individual provider Diagnostic Radiology Physician · NPI 1174527121

Dr. Ian Yen Ch'En, MD practises Diagnostic Radiology in Lynnwood, Washington. Graduated from University of Rochester School of Medicine and Dentistry in 1989, 37 years ago. Practices with Radia Inc P S, a 274-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, Idaho and Washington.

Years since qualifying
37
Trained at
University of Rochester School of Medicine and Dentistry
Licensed in
CA, ID, WA
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

19020 33rd Ave W Ste 210
Lynnwood, WA 98036
Phone: (425) 563-1500
Fax: (425) 563-1501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 203 S Western Ave, Tonasket, WA 98855-8803 — (509) 486-2151

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence MD00033869 (WA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence A00052836 (CA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence M-12434 (ID)

Record details

NPI number1174527121
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2005
Last updated in NPPESMarch 5, 2026
Certification dateMarch 5, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 1989 (37 years in practice)
Group practice Radia Inc P S — 274 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations17 on file with Medicare

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