Elson Lai, MD
NPI 1750549192 · Ophthalmology Physician · Rosemead, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elson Lai, MD is a Ophthalmology Physician provider in Rosemead, CA (NPI 1750549192).
Provider details
- NPI number
- 1750549192
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A116241 (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
1,357 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 | 293 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 177 | $137 |
| Photography of the Retina92250 | 144 | $40 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 102 | $64 |
| Established Patient Problem Focused Exam of Visual System92012 | 94 | $98 |
| New Patient Complete Exam of Visual System92004 | 78 | $163 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 542 | 144 |
| Prednisolone Acetate | 196 | 148 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 140 | 46 |
| Brimonidine Tartrate | 127 | 39 |
| Cyclosporinebrand: Restasis | 103 | 27 |
| Moxifloxacin Hclbrand: Moxifloxacin | 103 | 75 |
| Ketorolac Tromethamine | 102 | 70 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,414 across 55 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
- 2008-05-31
- Last updated
- 2014-02-20
Frequently asked questions
- What is Elson Lai's NPI number?
- Elson Lai's National Provider Identifier (NPI) is 1750549192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elson Lai's specialty?
- Elson Lai is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Elson Lai located?
- Elson Lai's practice location on file with NPPES is 9428 Valley Blvd Ste 201, Rosemead, CA 91770-1514.
- What is Elson Lai's phone number?
- The practice phone number listed in the NPPES registry for Elson Lai is (626) 353-0399.
- Does Elson Lai accept Medicare?
- Elson Lai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elson Lai's NPI active?
- Yes — Elson Lai's NPI (1750549192) is active in the NPPES registry as of the last update on 2014-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.