WEST COAST DIAGNOSTICS LLC
WEST COAST DIAGNOSTICS LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1972874501, based in Stockton, CA. The organization lists 2 taxonomy classifications, with Sleep Disorder Diagnostic Clinic/Center recorded as primary.
Getting there
The practice address on file is 8978 BAINBRIDGE PL, Stockton, CA 95209. 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 |
|---|---|---|
| 109903 | CA | Sleep Disorder Diagnostic Clinic/Center primary |
This provider holds licence 109903 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 - Independent Diagnostic Testing Facility (idtf)
- PAC ID
- 3870745037
- Enrollment ID
- O20121214000392
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Independent Diagnostic Testing Facility (idtf). 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 Sleep Disorder Diagnostic covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QS1200X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261QS1200X | Sleep Disorder Diagnostic Clinic/Center Sleep Disorder Diagnostic | 109903 | CA | primary |
| 293D00000X | Physiological Laboratory | — | — |
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 | 1972874501 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 12, 2012 |
| Last updated | Dec 15, 2025 |
| Status | Active |
| Practice address |
8978 BAINBRIDGE PL Stockton, CA 95209 (209) 406-4142 |
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 | 9 | 7 | 2 | 8 | 7 | 4 | 5 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 5 | 2 | 7 | 7 | 8 | 5 | 0 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.