NPPES file of Aug 9, 2026

Sen Sen Liu, MD

Psychiatry Physician · Kirkland, WA

Sen Sen Liu, MD is a psychiatry physician with a practice address in Kirkland, Washington, and NPI 1649763590, issued on Jun 14, 2018. Check the license (Washington MD61600229, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649763590
Name
Sen Sen Liu
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
MD61600229 WA
A176279 CA
MT216158 PA
Self-reported in NPPES; status is on the state search
Practice location
4030 Lake Washington Blvd NE Ste 303, Kirkland, WA 98033
Phone
(425) 409-6414
Enumerated
Jun 14, 2018
Record last updated
Jan 14, 2025
Medicare enrollment
Enrolled (PECOS I20250324003540); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4030 Lake Washington Blvd NE Ste 303

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aleksandra DziczkaniecMental Health Counselor1457150104
  2. Anthony EnseyClinical Social Worker1083124127
  3. Benafsha Psyd Rahimi, MACounselor1447835079
  4. Serena Robles, LMHC, LPCCMental Health Counselor1407331028
  5. Massoud Stephane, MDPsychiatry Physician1508941204

Verify Sen Sen Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61600229
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Western Psychological And Counseling Services LLCKirkland, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sen Sen Liu among 1,195 psychiatry physician records in Washington

Sen Sen Liu, MD is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 87% of them.

  • NPI issued2018 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2018 · median 2007 among the 462 with a school on file
  • Record last updated2025 · 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 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Washington

There are 1,195 psychiatry physician records in Washington.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Elizabeth Ashleigh, M.D.Kirkland, WA 980331114036381
  2. Rebecca Bay, M.D.Kirkland, WA 980331275694499
  3. Alina Bouza, M.D.Kirkland, WA 980331083898209
  4. Donald Rice, M.D.Kirkland, WA 980331689683583
  5. Massoud Stephane, MDKirkland, WA 980331508941204
  6. Michael Ward, MDKirkland, WA 980331912121625
  7. Colin Wendt, MDKirkland, WA 980331760971618
  8. William Adams, MDKirkland, WA 980341376550103

Common questions

What is Sen Sen Liu, MD's NPI number?

Sen Sen Liu, MD's National Provider Identifier (NPI) is 1649763590, issued on Jun 14, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sen Sen Liu, MD located?

The NPPES record lists a practice address at 4030 Lake Washington Blvd NE Ste 303, Kirkland, WA, 98033. Phone: (425) 409-6414. Providers update this record themselves, so call before visiting.

How can I verify Sen Sen Liu, MD's license?

NPPES lists Washington license number MD61600229, 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.