Josephine Shiau, NP
Nurse Practitioner · Los Angeles, CA
Josephine Shiau, NP is a nurse practitioner with a practice address in Los Angeles, California, and NPI 1578622205, issued on Dec 8, 2006. Check the license (California NP11109, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Josephine Shiau
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- NP11109 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 783-4011
- Enumerated
- Dec 8, 2006
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Josephine Shiau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP11109Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average nurse practitioner in 2024
255 Medicare Part D claims for 121 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 13 claims were for opioids.
Most prescribed
- Mupirocin60 claims
- Metoprolol Tartrate20 claims
- Pantoprazole Sodium15 claims
- Warfarin Sodium12 claims
- Hydrocodone-Acetaminophen11 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.
Josephine Shiau among 8,223 nurse practitioner records in California
Josephine Shiau, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 82% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Los Angeles → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Lydia Almeida, NPLos Angeles, CA 900271598832362
- Sherry Bott, NPLos Angeles, CA 900271205903069
- Ernestina Chavez, NPLos Angeles, CA 900271811064652
- Donna Chivaroli, NPLos Angeles, CA 900271659448421
- Clara Garza, NPLos Angeles, CA 900271215004080
- Varaporn Himathongkham, NPLos Angeles, CA 900271124187836
- Meei-Ing Lin, NPLos Angeles, CA 900271992872741
- Ng Irene Ruidera, NPLos Angeles, CA 900271750458527
Common questions
What is Josephine Shiau, NP's NPI number?
Josephine Shiau, NP's National Provider Identifier (NPI) is 1578622205, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Josephine Shiau, NP located?
The NPPES record lists a practice address at 4733 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 783-4011. Providers update this record themselves, so call before visiting.
How can I verify Josephine Shiau, NP's license?
NPPES lists California license number NP11109, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Josephine Shiau, NP prescribe under Medicare Part D?
In 2024, Josephine Shiau, NP had 255 Medicare Part D claims for 121 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.