NPPES file of Aug 9, 2026

Tina Xu, D.O.

Family Medicine Physician · Issaquah, WA

Tina Xu, D.O. is a family medicine physician with a practice address in Issaquah, Washington, and NPI 1659807444, issued on May 11, 2017. Check the license (Washington OP61502180, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659807444
Name
Tina Xu
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OP61502180 WA
Self-reported in NPPES; status is on the state search
Practice location
751 NE Blakely Dr Ste 5010, Issaquah, WA 98029
Phone
(425) 394-0700
Enumerated
May 11, 2017
Record last updated
Nov 19, 2025
Fax
(425) 394-0701
Medicaid ID
2289567 WA
Medicare enrollment
Enrolled (PECOS I20240618004193); 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.
Download card Updates feed

Also registered at 751 NE Blakely Dr Ste 5010

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

  1. Haejun Ahn, MDPediatric Nephrology Physician1013379221
  2. Mark Bouchard, MDPediatrics Physician1316392517
  3. Miranda Canfield, RDRegistered Dietitian1093336596
  4. Jake Choiniere, DOPsychiatry Physician1578882452
  5. Eric Gil, M.D.Internal Medicine Physician1891781746
  6. Samer Hafi, M.D.Endocrinology, Diabetes & Metabolism Physician1144486945

Verify Tina Xu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP61502180
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

87% fewer Medicare Part D claims than the average family medicine physician in 2024

477 Medicare Part D claims for 118 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Tina Xu477
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium55 claims
  2. Amlodipine Besylate28 claims
  3. Losartan Potassium23 claims
  4. Lisinopril22 claims
  5. Gabapentin20 claims
  6. Levothyroxine Sodium20 claims

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

  1. Swedish Health ServicesIssaquah, WA

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

Tina Xu among 5,534 family medicine physician records in Washington

Tina Xu, D.O. is one of 5,534 family medicine physician records with a practice address in Washington. 73% 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 79% of them.

  • NPI issued2017 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Record last updated2025 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

38 family medicine physician records list a practice address in Issaquah

They are 38 of the 1,727 NPPES records with a practice address in Issaquah, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Sigird Barnickel, MDIssaquah, WA 980291598831687
  2. Victoria Boisen, DOIssaquah, WA 980291205814167
  3. Lee Ha Chan, M.D.Issaquah, WA 980291073772539
  4. Asmita Chaudhary, MDSammamish, WA 980291861695124
  5. Sarah Hiam, D.O.Issaquah, WA 980291083751333
  6. Michelle Kauffman, D.O.Issaquah, WA 980291083909428
  7. Travis Kinane, DOIssaquah, WA 980291346820867
  8. Tuvien Le, D.O.Issaquah, WA 980291518270818

Common questions

What is Tina Xu, D.O.'s NPI number?

Tina Xu, D.O.'s National Provider Identifier (NPI) is 1659807444, issued on May 11, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Tina Xu, D.O. located?

The NPPES record lists a practice address at 751 NE Blakely Dr Ste 5010, Issaquah, WA, 98029. Phone: (425) 394-0700. Providers update this record themselves, so call before visiting.

How can I verify Tina Xu, D.O.'s license?

NPPES lists Washington license number OP61502180, 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 Tina Xu, D.O. prescribe under Medicare Part D?

In 2024, Tina Xu, D.O. had 477 Medicare Part D claims for 118 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.