NPPES file of Aug 9, 2026

Hou Hsien Chiang, MD

Endocrinology, Diabetes & Metabolism Physician · Seattle, WA

Hou Hsien Chiang, MD is an endocrinology, diabetes & metabolism physician with a practice address in Seattle, Washington, and NPI 1255837100, issued on Mar 31, 2018. Check the license (Washington MD61136439, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255837100
Name
Hou Hsien Chiang
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
MD61136439 WA
Self-reported in NPPES; status is on the state search
Practice location
1124 Columbia St Ste 400, Seattle, WA 98104
Phone
(206) 215-2440
Enumerated
Mar 31, 2018
Record last updated
Nov 5, 2025
Fax
(206) 215-2457
Medicaid ID
2188267 WA
Medicare enrollment
Enrolled (PECOS I20230712001915); 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 1124 Columbia St Ste 400

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

  1. Eric Bedson, PA-CSurgical Physician Assistant1588312524
  2. Andrea Breuner, PA-CPhysician Assistant1730172586
  3. Mackenzie Brewer, RDRegistered Dietitian1396484655
  4. Eric Carpentier, M.D.Internal Medicine Physician1972852291
  5. May Chang, ARNPNurse Practitioner1174771885
  6. Vanessa Cortes De Jorge, MDObesity Medicine (Family Medicine) Physician1760794895

Verify Hou Hsien Chiang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61136439
    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

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96% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

106 Medicare Part D claims for 23 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.

  1. Hou Hsien Chiang106
  2. Specialty average2,630

Most prescribed

  1. Methimazole18 claims
  2. Alendronate Sodium15 claims
  3. Hydrocortisone15 claims
  4. Tymlos11 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.

The MIPS final score for 2023 (Medicare payment program): 93.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Swedish Health ServicesSeattle, WA
  2. The Association OF University PhysiciansSeattle, WA

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

Hou Hsien Chiang among 224 endocrinology, diabetes & metabolism physician records in Washington

Hou Hsien Chiang, MD is one of 224 endocrinology, diabetes & metabolism 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 2018, is newer than 90% of them.

  • NPI issued2018 · 90% of these records are older, 9% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2006 · median 2006 among the 140 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Washington

There are 224 endocrinology, diabetes & metabolism physician records in Washington.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Shelby Brammer, M.D.Seattle, WA 981041831266816
  2. Frances Broyles, MDSeattle, WA 981041669454583
  3. Matthew Davies, MDSeattle, WA 981041902892680
  4. Gary Enzmann, MDSeattle, WA 981041902893480
  5. Kenneth Gross, MDSeattle, WA 981041831155969
  6. Wei Hao, MDSeattle, WA 981041952334740
  7. Sunna Kwun, MDSeattle, WA 981041285818328
  8. Robert Murray, M.D.Seattle, WA 981041982672846

Common questions

What is Hou Hsien Chiang, MD's NPI number?

Hou Hsien Chiang, MD's National Provider Identifier (NPI) is 1255837100, issued on Mar 31, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Hou Hsien Chiang, MD located?

The NPPES record lists a practice address at 1124 Columbia St Ste 400, Seattle, WA, 98104. Phone: (206) 215-2440. Providers update this record themselves, so call before visiting.

How can I verify Hou Hsien Chiang, MD's license?

NPPES lists Washington license number MD61136439, 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 Hou Hsien Chiang, MD prescribe under Medicare Part D?

In 2024, Hou Hsien Chiang, MD had 106 Medicare Part D claims for 23 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

What is Hou Hsien Chiang, MD's MIPS final score?

The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.