Esther Hwang
Physician Assistant · Chino Hills, CA
Esther Hwang is a physician assistant with a practice address in Chino Hills, California, and NPI 1851696595, issued on Jan 11, 2011. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Esther Hwang
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 2140 Grand Ave, Chino Hills, CA 91709
- Phone
- (818) 857-8785
- Enumerated
- Jan 11, 2011
- Record last updated
- Aug 11, 2024
- Medicare enrollment
- Enrolled (PECOS I20110222001092); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Esther Hwang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average physician assistant in 2024
956 Medicare Part D claims for 354 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Clobetasol Propionate182 claims
- Ciclopirox68 claims
- Ammonium Lactate60 claims
- Tacrolimus55 claims
- Ketoconazole49 claims
- Levocetirizine Dihydrochloride46 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.
Industry payments in 2024: $1,231.32
52 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pacific Dermatology InstituteChino Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Esther Hwang among 14,451 physician assistant records in California
Esther Hwang is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 30% of them.
- NPI issued2011 · 30% of these records are older, 67% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2009 · median 2018 among the 7,214 with a school on file
- Record last updated2024 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 physician assistant records list a practice address in Chino Hills
They are 22 of the 774 NPPES records with a practice address in Chino Hills, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Chino Hills → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Stephanie Chamani, PA-CChino Hills, CA 917091104949858
- Ivy Chow, PA-CChino Hills, CA 917091235533670
- Pamela Farah, PA-CChino Hills, CA 917091972088763
- Jennifer Holman, PA-CChino Hills, CA 917091942676663
- Tiffany Katuls, PA-CChino Hills, CA 917091982911012
- Elizabeth LeeChino Hills, CA 917091407515224
- Jennifer Lyons, PA-CChino Hills, CA 917091730215401
- Kandin MaraquinChino Hills, CA 917091760033278
Common questions
What is Esther Hwang's NPI number?
Esther Hwang's National Provider Identifier (NPI) is 1851696595, issued on Jan 11, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Esther Hwang located?
The NPPES record lists a practice address at 2140 Grand Ave, Chino Hills, CA, 91709. Phone: (818) 857-8785. Providers update this record themselves, so call before visiting.
How can I verify Esther Hwang's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Esther Hwang prescribe under Medicare Part D?
In 2024, Esther Hwang had 956 Medicare Part D claims for 354 beneficiaries; the average among physician assistant prescribers was 830. 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.