Dr. Ian Ch'En, MD
What this data tells you about Dr. Ch'En
Dr. Ian Ch'En is a radiation oncology specialist in Lynnwood, WA, with 21 years of NPI registration. Based on federal Medicare data, Dr. Ch'En performed 6,361 Medicare services in 2023. These records do not provide a deduplicated patient total.
The Data Coverage level for Dr. Ch'En is High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary — 2023
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
5,380 | $0 | $1 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
280 | $93 | $402 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
119 | $54 | $463 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
59 | $7 | $32 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
54 | $26 | $126 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
48 | $68 | $299 |
| Low dose CT scan of chest for lung cancer screening A specialized CT scan of the chest using a lower radiation dose to screen for lung cancer. |
45 | $58 | $183 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
45 | $27 | $283 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
42 | $66 | $350 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
39 | $21 | $200 |
| Swallowing function imaging Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function. |
35 | $21 | $91 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
29 | $8 | $37 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
24 | $40 | $250 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
22 | $29 | $200 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
21 | $79 | $347 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
21 | $39 | $275 |
| Ultrasound scan of chest An imaging test that uses sound waves to create pictures of the structures inside the chest. |
16 | $22 | $94 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
16 | $5 | $15 |
| CT scan of abdominal and pelvic blood vessels with contrast A computed tomography scan that uses contrast dye to visualize the blood vessels in the abdomen and pelvis. |
15 | $82 | $332 |
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
14 | $32 | $200 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
13 | $26 | $313 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
12 | $7 | $34 |
| MRI of abdomen with and without contrast An MRI scan of the abdomen using contrast dye before and after administration to create detailed images of internal structures. |
12 | $130 | $980 |
Geographic Context
3.1 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | — No payments | N/A |
| Disciplinary History | — Not included | N/A |
This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Ch'En is a mixed practice specialist, with above-average Medicare volume (top 24% in WA), with 21 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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