ELSON LAI, MD, A PROFESSIONAL CORPORATION
ELSON LAI, MD, A PROFESSIONAL CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1053741280, based in Rosemead, CA. It is classified under Ophthalmologic Surgery Clinic/Center.
Getting there
The practice address on file is 9428 VALLEY BLVD STE 201, Rosemead, CA 91770. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A116241 | CA | Ophthalmologic Surgery Clinic/Center primary |
This provider holds licence A116241 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 7719119361
- Enrollment ID
- O20140414000059
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Ophthalmologic Surgery covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QS0132X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1053741280 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Nov 25, 2013 |
| Last updated | Nov 25, 2013 |
| Status | Active |
| Practice address |
9428 VALLEY BLVD STE 201 Rosemead, CA 91770 (626) 353-0399 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 5 | 3 | 7 | 4 | 1 | 2 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 1 | 3 | 5 | 4 | 2 | 2 | 7 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.