Esther Ahn
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Los Angeles, CA
Esther Ahn is a pharmacist clinician (phc)/ clinical pharmacy specialist with a practice address in Los Angeles, California, and NPI 1386351948, issued on Nov 3, 2022. Check the license (California 1386351948, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Esther Ahn
- Primary taxonomy
- Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist 1835P0018X
- License number
- 1386351948 CA
Self-reported in NPPES; status is on the state search - Practice location
- 645 W 9TH St, Los Angeles, CA 90015
- Phone
- (213) 452-0830
- Enumerated
- Nov 3, 2022
- Record last updated
- Jun 5, 2026
- Entity
- Type 1 · individual
8 nearest pharmacist clinician (phc)/ clinical pharmacy specialist records → All 1,593 in California → Look up another NPI →
Also registered at 645 W 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Laurina Mendiones, LMFTMarriage & Family Therapist1881972156
- Sandra Nguyen, PHARMDPharmacist1851714992
- Dani RowshanshadPharmacist1811310949
- Marcelo Silva, DDSStudent in an Organized Health Care Education/Training Program1417369455
- Sara Strobel-Sabatino, PHARMDPharmacist1154960086
Verify Esther Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 1386351948Check 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 clinician (phc)/ clinical pharmacy specialist in 2024
22 Medicare Part D claims for 21 beneficiaries, against an average of 253 among the 1,614 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.
Esther Ahn among 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records in California
Esther Ahn is one of 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records with a practice address in California. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 86% of them.
- NPI issued2022 · 86% of these records are older, 10% newer
- In a Medicare fileYes · 17% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1835P0018X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist providers in California
There are 1,593 pharmacist clinician (phc)/ clinical pharmacy specialist records in California.
All 1,593 in California → Every provider in Los Angeles → Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist nationwide →
The 8 pharmacist clinician (phc)/ clinical pharmacy specialist records with the nearest ZIP codes
- Ijeoma Eleazu, PHARMDLos Angeles, CA 900151073495156
- Eunice Kim, PHARMDLos Angeles, CA 900151699281758
- Autumn Walkerly, PHARMDLos Angeles, CA 900151740055052
- Calum Nelson, PHARMD, APH, BCPSLos Angeles, CA 900171326631078
- Theodore Nguyen, PHARMD, BCPSLos Angeles, CA 900131548801251
- Hanna Sung, PHARMDLos Angeles, CA 900171508497926
- Huong Ai, PHARM.D.Los Angeles, CA 900121265534390
- Wooseob KimLos Angeles, CA 900121053816363
Common questions
What is Esther Ahn's NPI number?
Esther Ahn's National Provider Identifier (NPI) is 1386351948, issued on Nov 3, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Esther Ahn located?
The NPPES record lists a practice address at 645 W 9TH St, Los Angeles, CA, 90015. Phone: (213) 452-0830. Providers update this record themselves, so call before visiting.
How can I verify Esther Ahn's license?
NPPES lists California license number 1386351948, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Esther Ahn prescribe under Medicare Part D?
In 2024, Esther Ahn had 22 Medicare Part D claims for 21 beneficiaries; the average among pharmacist clinician (phc)/ clinical pharmacy specialist prescribers was 253. 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.