THE WESTLAKE OPHTHALMOLOGY ASC, LLC
THE WESTLAKE OPHTHALMOLOGY ASC, LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1629041157, based in Westlake Village, CA. It is classified under Ambulatory Surgical Clinic/Center.
Getting there
The practice address on file is 2900 TOWNSGATE RD SUITE 201, Westlake Village, CA 91361. 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 |
|---|---|---|
| 050000450 | CA | Ambulatory Surgical Clinic/Center primary |
This provider holds licence 050000450 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 - Ambulatory Surgical Center
- PAC ID
- 2961493804
- Enrollment ID
- O20040520000288
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Ambulatory Surgical Center. 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 Ambulatory Surgical covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QA1903X
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 | 1629041157 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Feb 7, 2006 |
| Last updated | Mar 3, 2026 |
| Status | Active |
| Practice address |
2900 TOWNSGATE RD SUITE 201 Westlake Village, CA 91361 (805) 496-6789 Fax (805) 494-8392 |
| Mailing address |
75 ENTERPRISE STE 200 Aliso Viejo, CA 92656 |
| Other names |
Westlake Eye Surgery Center Former Legal Name |
| Other identifiers |
S551006A
· Medicaid (CA) |
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 | 6 | 2 | 9 | 0 | 4 | 1 | 1 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 4 | 9 | 0 | 4 | 2 | 1 | 1 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.