David Siew, MD
Internal Medicine Physician · Kirkland, WA
David Siew, MD is an internal medicine physician with a practice address in Kirkland, Washington, and NPI 1225080211, issued on May 17, 2006. Check the license (Washington MD00044045, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- David Siew
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00044045 WA
Self-reported in NPPES; status is on the state search - Practice location
- 12040 NE 128TH St, Kirkland, WA 98034
- Phone
- (425) 899-2560
- Enumerated
- May 17, 2006
- Record last updated
- Jun 18, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (425) 899-2079
- Medicaid ID
- 8448979 WA
- Medicare enrollment
- Enrolled (PECOS I20060322000132); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 12040 NE 128TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Addison, M.D.Internal Medicine Physician1245573385
- Ziad Alsoufi, MDHospitalist Physician1760652648
- Kathleen AmbielliPharmacist1407612526
- Kevin AntoineOccupational Therapist1528896586
- Warren Appleton, M.D.Emergency Medicine Physician1700831591
- Seth Arlow, MDAnesthesiology Physician1891749586
Verify David Siew in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00044045Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
113 Medicare Part D claims for 39 beneficiaries, 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
- King County Public Hospital District NO 2Kirkland, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Siew among 3,079 internal medicine physician records in Washington
David Siew, MD 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2002 · median 2006 among the 1,852 with a school on file
- Record last updated2009 · 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).
70 internal medicine physician records list a practice address in Kirkland
They are 70 of the 3,404 NPPES records with a practice address in Kirkland, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Kirkland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Colquhoun, MDKirkland, WA 980341962484865
- Erin Edwards, M.D.Kirkland, WA 980341306837463
- Eric Hansen, MDKirkland, WA 980341447249206
- David Likosky, MDKirkland, WA 980341992787352
- Johnson Loh, MDKirkland, WA 980341114909090
- James Lund, M.D.Kirkland, WA 980341033108709
- Nancy Marshall, MDKirkland, WA 980341548242456
- Victoria Marxen, MDKirkland, WA 980341578545356
Common questions
What is David Siew, MD's NPI number?
David Siew, MD's National Provider Identifier (NPI) is 1225080211, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Siew, MD located?
The NPPES record lists a practice address at 12040 NE 128TH St, Kirkland, WA, 98034. Phone: (425) 899-2560. Providers update this record themselves, so call before visiting.
How can I verify David Siew, MD's license?
NPPES lists Washington license number MD00044045, 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 David Siew, MD prescribe under Medicare Part D?
In 2024, David Siew, MD had 113 Medicare Part D claims for 39 beneficiaries; 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.