Esther Hwang
NPI 1851696595 · Physician Assistant · Chino Hills, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Esther Hwang is a Physician Assistant provider in Chino Hills, CA (NPI 1851696595).
Provider details
- NPI number
- 1851696595
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
122 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $80 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $108 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 20 | $94 |
| Destruction of Skin Growth, 1-14 Growths17110 | 19 | $102 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 17 | $53 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 182 | 114 |
| Ciclopirox | 68 | 42 |
| Ammonium Lactate | 60 | 41 |
| Tacrolimus | 55 | 34 |
| Ketoconazole | 49 | 31 |
| Levocetirizine Dihydrochloride | 46 | 20 |
| Dupilumabbrand: Dupixent Pen | 33 | — |
| Fluorouracil | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,231 across 52 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-01-11
- Last updated
- 2024-08-11
- Certified
- 2024-08-11
Frequently asked questions
- What is Esther Hwang's NPI number?
- Esther Hwang's National Provider Identifier (NPI) is 1851696595, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Esther Hwang's specialty?
- Esther Hwang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Esther Hwang located?
- Esther Hwang's practice location on file with NPPES is 2140 Grand Ave, Chino Hills, CA 91709-6800.
- What is Esther Hwang's phone number?
- The practice phone number listed in the NPPES registry for Esther Hwang is (818) 857-8785.
- Does Esther Hwang accept Medicare?
- Esther Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Esther Hwang's NPI active?
- Yes — Esther Hwang's NPI (1851696595) is active in the NPPES registry as of the last update on 2024-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.