Nan-Shing Hsu, M.D.
Family Medicine Physician · Federal Way, WA
Nan-Shing Hsu, M.D. is a family medicine physician with a practice address in Federal Way, Washington, and NPI 1598731804, issued on Feb 27, 2006. Check the license (Washington MD00041614, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nan-Shing Hsu
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00041614 WA
Self-reported in NPPES; status is on the state search - Practice location
- 32018 23RD Ave S, Federal Way, WA 98003
- Phone
- (253) 839-3030
- Enumerated
- Feb 27, 2006
- Record last updated
- Feb 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 1598731804 WA
- Medicare enrollment
- Enrolled (PECOS I20090626000001); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 32018 23RD Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Larhonda Clayville, ARNPFamily Nurse Practitioner1629005962
- Christopher Coppeans, MDFamily Medicine Physician1194922526
- Robert DiniFamily Medicine Physician1124103924
Verify Nan-Shing Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00041614Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average family medicine physician in 2024
1,451 Medicare Part D claims for 322 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Atorvastatin Calcium82 claims
- Losartan Potassium55 claims
- Hydrochlorothiazide52 claims
- Metoprolol Succinate49 claims
- Omeprazole49 claims
- Amlodipine Besylate43 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Pacmed ClinicsFederal Way, WA
- Select Outpatient Services IncGlenview, IL
- Select Rehabilitation, LLCGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nan-Shing Hsu among 5,534 family medicine physician records in Washington
Nan-Shing Hsu, M.D. 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1996 · median 2009 among the 3,294 with a school on file
- Record last updated2016 · 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).
91 family medicine physician records list a practice address in Federal Way
They are 91 of the 2,770 NPPES records with a practice address in Federal Way, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Federal Way → Family Medicine Physician nationwide →
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- Rosalie Miller, M.D., MPHFederal Way, WA 980031467421776
Common questions
What is Nan-Shing Hsu, M.D.'s NPI number?
Nan-Shing Hsu, M.D.'s National Provider Identifier (NPI) is 1598731804, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nan-Shing Hsu, M.D. located?
The NPPES record lists a practice address at 32018 23RD Ave S, Federal Way, WA, 98003. Phone: (253) 839-3030. Providers update this record themselves, so call before visiting.
How can I verify Nan-Shing Hsu, M.D.'s license?
NPPES lists Washington license number MD00041614, 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 Nan-Shing Hsu, M.D. prescribe under Medicare Part D?
In 2024, Nan-Shing Hsu, M.D. had 1,451 Medicare Part D claims for 322 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Nan-Shing Hsu, M.D.'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.