Lauren Liang-Chang, OD
NPI 1801474283 · Optometrist · Los Angeles, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lauren Liang-Chang, OD is a Optometrist provider in Los Angeles, CA (NPI 1801474283).
Provider details
- NPI number
- 1801474283
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Eye and Vision Services Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
226 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 | 69 | $137 |
| Imaging of Retina92134 | 67 | $44 |
| New Patient Complete Exam of Visual System92004 | 42 | $161 |
| Established Patient Problem Focused Exam of Visual System92012 | 27 | $97 |
| Imaging of Optic Nerve92133 | 21 | $39 |
Typical Medicare-allowed amounts for these services range $39–$161 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 690 | 251 |
| Timolol Maleate | 228 | 82 |
| Brimonidine Tartrate | 145 | 52 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 109 | 41 |
| Cyclosporine | 83 | 35 |
| Cyclosporinebrand: Restasis | 81 | 31 |
| Prednisolone Acetate | 57 | 46 |
| Dorzolamide Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$85 across 4 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
Additional practice locations (1)
- 4961 Arrow Hwy # 15-308Montclair, CA 91763-1300Phone: (808) 393-8938
Registry dates
- Enumerated
- 2021-03-29
- Last updated
- 2022-06-04
- Certified
- 2022-06-04
Frequently asked questions
- What is Lauren Liang-Chang's NPI number?
- Lauren Liang-Chang's National Provider Identifier (NPI) is 1801474283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Liang-Chang's specialty?
- Lauren Liang-Chang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Lauren Liang-Chang located?
- Lauren Liang-Chang's practice location on file with NPPES is 11301 Wilshire Blvd, Los Angeles, CA 90073-1003.
- What is Lauren Liang-Chang's phone number?
- The practice phone number listed in the NPPES registry for Lauren Liang-Chang is (808) 393-8938.
- Does Lauren Liang-Chang accept Medicare?
- Lauren Liang-Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lauren Liang-Chang's NPI active?
- Yes — Lauren Liang-Chang's NPI (1801474283) is active in the NPPES registry as of the last update on 2022-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.