Florence C. Hsu, MD
Rheumatology Physician · Seattle, WA
Florence C. Hsu, MD is a rheumatology physician with a practice address in Seattle, Washington, and NPI 1932219953, issued on Aug 30, 2006. Check the license (Washington MD00036431, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Florence C. Hsu
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- MD00036431 WA
Self-reported in NPPES; status is on the state search - Practice location
- 904 7TH Ave, Seattle, WA 98104
- Phone
- (206) 329-1760
- Enumerated
- Aug 30, 2006
- Record last updated
- May 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 8246449 WA
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 200 in Washington → Look up another NPI →
Also registered at 904 7TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Linda Anderson, M.D.Pulmonary Disease Physician1053317222
Verify Florence C. Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00036431Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average rheumatology physician in 2024
122 Medicare Part D claims for 72 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Methotrexate19 claims
- Prednisone16 claims
- Allopurinol13 claims
- Hydroxychloroquine Sulfate13 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.
Florence C. Hsu among 200 rheumatology physician records in Washington
Florence C. Hsu, MD is one of 200 rheumatology physician records with a practice address in Washington. 77% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Washington
There are 200 rheumatology physician records in Washington.
All 200 in Washington → Every provider in Seattle → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Alison Bays, MD, MPH&TMSeattle, WA 981041720303654
- Paul Brown, M.D.Seattle, WA 981041689749525
- Tal Gazitt, M.D., M.S.Seattle, WA 981041710203708
- Jennifer Gorman, MDSeattle, WA 981041417970443
- Janice Gupta, D.O.Seattle, WA 981041659445260
- Anthony Krajcer, M.D.Seattle, WA 981041124215033
- Philip Mease, MDSeattle, WA 981041336218171
- Peter Mohai, MDSeattle, WA 981041831185966
Common questions
What is Florence C. Hsu, MD's NPI number?
Florence C. Hsu, MD's National Provider Identifier (NPI) is 1932219953, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Florence C. Hsu, MD located?
The NPPES record lists a practice address at 904 7TH Ave, Seattle, WA, 98104. Phone: (206) 329-1760. Providers update this record themselves, so call before visiting.
How can I verify Florence C. Hsu, MD's license?
NPPES lists Washington license number MD00036431, 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 Florence C. Hsu, MD prescribe under Medicare Part D?
In 2024, Florence C. Hsu, MD had 122 Medicare Part D claims for 72 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.