Lisa Hwang, M.D.
NPI 1932376159 · Ophthalmology Physician · Lancaster, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lisa Hwang, M.D. is a Ophthalmology Physician provider in Lancaster, CA (NPI 1932376159).
Provider details
- NPI number
- 1932376159
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A104598 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,030 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 Complete Exam of Visual System92014 | 730 | $130 |
| Closure of Tear Duct Opening Using Plug68761 | 323 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 301 | $99 |
| New Patient Complete Exam of Visual System92004 | 190 | $155 |
| Established Patient Complete Exam of Visual System92014 | 76 | $75 |
| Imaging of Retina92134 | 76 | $44 |
| Exam of Visual Field With Extended Testing |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 260 | 74 |
| Timolol Maleate | 158 | 53 |
| Prednisolone Acetate | 84 | 54 |
| Bimatoprostbrand: Lumigan | 81 | 30 |
| Ofloxacin | 74 | 63 |
| Brimonidine Tartrate | 70 | 22 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 54 | 17 |
| Brimonidine Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$788 across 29 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
- 2008-05-15
- Last updated
- 2009-11-20
Frequently asked questions
- What is Lisa Hwang's NPI number?
- Lisa Hwang's National Provider Identifier (NPI) is 1932376159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lisa Hwang's specialty?
- Lisa Hwang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Lisa Hwang located?
- Lisa Hwang's practice location on file with NPPES is 43112 15th St W, Lancaster, CA 93534-6219.
- What is Lisa Hwang's phone number?
- The practice phone number listed in the NPPES registry for Lisa Hwang is (646) 872-8649.
- Does Lisa Hwang accept Medicare?
- Lisa Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lisa Hwang's NPI active?
- Yes — Lisa Hwang's NPI (1932376159) is active in the NPPES registry as of the last update on 2009-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.