Hannah Yoon, PHARM.D.
Ambulatory Care Pharmacist · Antioch, CA
Hannah Yoon, PHARM.D. is an ambulatory care pharmacist with a practice address in Antioch, California, and NPI 1477810174, issued on Apr 19, 2012. Check the license (California 71450, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hannah Yoon
- Credential
- PHARM.D.
- Primary taxonomy
- Ambulatory Care Pharmacist 1835P2201X
- License number
- 71450 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3454 Hillcrest Ave, Antioch, CA 94531
- Phone
- (925) 777-6300
- Enumerated
- Apr 19, 2012
- Record last updated
- Dec 10, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest ambulatory care pharmacist records → All 485 in California → Look up another NPI →
Also registered at 3454 Hillcrest Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hannah Yoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 71450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average ambulatory care pharmacist in 2024
625 Medicare Part D claims for 305 beneficiaries, against an average of 527 among the 449 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Clozapine41 claims
- Lorazepam41 claims
- Clonazepam39 claims
- Alprazolam37 claims
- Trazodone Hcl34 claims
- Sertraline Hcl28 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.
Hannah Yoon among 485 ambulatory care pharmacist records in California
Hannah Yoon, PHARM.D. is one of 485 ambulatory care pharmacist records with a practice address in California. 39% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 6% of them.
- NPI issued2012 · 6% of these records are older, 93% newer
- In a Medicare fileYes · 39% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2019 · 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 1835P2201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ambulatory Care Pharmacist providers in California
There are 485 ambulatory care pharmacist records in California.
All 485 in California → Every provider in Antioch → Ambulatory Care Pharmacist nationwide →
The 8 ambulatory care pharmacist records with the nearest ZIP codes
- Shawn Lester, PHARM.D.Fremont, CA 945381932550639
- Jamie Sato, PHARMDHayward, CA 945421871214924
- Sudhir Reddy, PHARM DCastro Valley, CA 945461043761877
- Dominic Tran, PHARMDCastro Valley, CA 945461033550470
- Vincent Huie, PHARM DLivermore, CA 945511053776328
- Diane Lee, PHARMDMartinez, CA 945531669595658
- Juliana Wilson, PHARM.D.Martinez, CA 945531376807891
- Disnay Castrejon, PHARMDNapa, CA 945581548776271
Common questions
What is Hannah Yoon, PHARM.D.'s NPI number?
Hannah Yoon, PHARM.D.'s National Provider Identifier (NPI) is 1477810174, issued on Apr 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Hannah Yoon, PHARM.D. located?
The NPPES record lists a practice address at 3454 Hillcrest Ave, Antioch, CA, 94531. Phone: (925) 777-6300. Providers update this record themselves, so call before visiting.
How can I verify Hannah Yoon, PHARM.D.'s license?
NPPES lists California license number 71450, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Hannah Yoon, PHARM.D. prescribe under Medicare Part D?
In 2024, Hannah Yoon, PHARM.D. had 625 Medicare Part D claims for 305 beneficiaries; the average among ambulatory care pharmacist prescribers was 527. 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.