Annie Yin Ling Hsu, PHARMD.
Pharmacist · Mission Viejo, CA
Annie Yin Ling Hsu, PHARMD. is a pharmacist with a practice address in Mission Viejo, California, and NPI 1609178011, issued on Nov 18, 2010. Check the license (California 58359, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Annie Yin Ling Hsu
- Credential
- PHARMD.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 58359 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26022 Marguerite Pkwy, Mission Viejo, CA 92692
- Phone
- (949) 582-3294
- Enumerated
- Nov 18, 2010
- Record last updated
- Nov 18, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 26022 Marguerite Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kira Eastman, RPHPharmacist1528643954
- Huy Ngo, PHARMD.Pharmacist1427351675
- Marie Nguyen, PHARMDPharmacist1720388333
- Nancy Nguyen, PHARMDPharmacist1427567742
- Christine Pham, PHARM DPharmacist1114228806
- Paula WalkerPharmacist1063713550
Verify Annie Yin Ling Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 58359Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average pharmacist in 2024
11 Medicare Part D claims for 11 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of 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.
Annie Yin Ling Hsu among 32,533 pharmacist records in California
Annie Yin Ling Hsu, PHARMD. is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 12% of them.
- NPI issued2010 · 12% of these records are older, 82% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
99 pharmacist records list a practice address in Mission Viejo
They are 99 of the 2,156 NPPES records with a practice address in Mission Viejo, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Mission Viejo → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Jihad Bayaa, PHARMACISTMission Viejo, CA 926921528368180
- Jennie Cho, PHARMDMission Viejo, CA 926921235406406
- Joseph Ferris, RPHMission Viejo, CA 926921780902163
- Roza Kazemi, PHARM DMission Viejo, CA 926921780057075
- Huy Ngo, PHARMD.Mission Viejo, CA 926921427351675
- Marie Nguyen, PHARMDMission Viejo, CA 926921720388333
- My Anh Nguyen, PHARMMission Viejo, CA 926921699037549
- Phuong Anh Nguyen, PHARM.DMission Viejo, CA 926921528409588
Common questions
What is Annie Yin Ling Hsu, PHARMD.'s NPI number?
Annie Yin Ling Hsu, PHARMD.'s National Provider Identifier (NPI) is 1609178011, issued on Nov 18, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Annie Yin Ling Hsu, PHARMD. located?
The NPPES record lists a practice address at 26022 Marguerite Pkwy, Mission Viejo, CA, 92692. Phone: (949) 582-3294. Providers update this record themselves, so call before visiting.
How can I verify Annie Yin Ling Hsu, PHARMD.'s license?
NPPES lists California license number 58359, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Annie Yin Ling Hsu, PHARMD. prescribe under Medicare Part D?
In 2024, Annie Yin Ling Hsu, PHARMD. had 11 Medicare Part D claims for 11 beneficiaries; the average among pharmacist prescribers was 119. 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.