Chang C. Liu, DO
Internal Medicine Physician · Seattle, WA
Chang C. Liu, DO is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1043751969, issued on Mar 10, 2017. Check the license (Washington OP61270852, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Chang C. Liu
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OP61270852 WA
Self-reported in NPPES; status is on the state search - Practice location
- 904 7TH Ave FL 9, Seattle, WA 98104
- Phone
- (206) 329-1760
- Enumerated
- Mar 10, 2017
- Record last updated
- Dec 19, 2022
- Medicare enrollment
- Enrolled (PECOS I20221227001568); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 904 7TH Ave FL 9
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacklyn Spiegelberg, DNP, ARNPPrimary Care Nurse Practitioner1184103541
Verify Chang C. Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61270852Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
14 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Bills Medicare through one group practice
- Franciscan Medical GroupTacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chang C. Liu among 3,079 internal medicine physician records in Washington
Chang C. Liu, DO is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 82% of them.
- NPI issued2017 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2006 among the 1,852 with a school on file
- Record last updated2022 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul Abdallah, MDSeattle, WA 981041639166119
- James Bushyhead, MDSeattle, WA 981041366439846
- Michael Cairns, MDSeattle, WA 981041184611659
- Linda Chow, MDSeattle, WA 981041962498014
- Alex Efird, MDSeattle, WA 981041669469144
- Seth Franklin, MDSeattle, WA 981041588650253
- Margo Kober, MDSeattle, WA 981041083601561
- Eva KojnokSeattle, WA 981041720075294
Common questions
What is Chang C. Liu, DO's NPI number?
Chang C. Liu, DO's National Provider Identifier (NPI) is 1043751969, issued on Mar 10, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Chang C. Liu, DO located?
The NPPES record lists a practice address at 904 7TH Ave FL 9, Seattle, WA, 98104. Phone: (206) 329-1760. Providers update this record themselves, so call before visiting.
How can I verify Chang C. Liu, DO's license?
NPPES lists Washington license number OP61270852, 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 Chang C. Liu, DO prescribe under Medicare Part D?
In 2024, Chang C. Liu, DO had 14 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.