Western Diagnostic Services Laboratory, LLC
NPI 1497120653 · Clinical Medical Laboratory · Santa Maria, CA
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Western Diagnostic Services Laboratory, LLC is a Clinical Medical Laboratory organization in Santa Maria, CA (NPI 1497120653).
Provider details
- NPI number
- 1497120653
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Kevin Ferguson, President(805) 548-1550
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
27,718 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 16,993 | $41 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 3,299 | $73 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 2,538 | $83 |
| Flow Cytometry Technique for Dna Or Cell Analysis, Each Additional Marker88185 | 2,090 | $25 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 849 | $100 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 434 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-12-14
- Last updated
- 2023-09-07
- Certified
- 2023-09-07
Frequently asked questions
- What is Western Diagnostic Services Laboratory, LLC's NPI number?
- Western Diagnostic Services Laboratory, LLC's National Provider Identifier (NPI) is 1497120653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Western Diagnostic Services Laboratory, LLC?
- Western Diagnostic Services Laboratory, LLC is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Western Diagnostic Services Laboratory, LLC located?
- Western Diagnostic Services Laboratory, LLC's practice location on file with NPPES is 1414 E Main St, Santa Maria, CA 93454-4806.
- What is Western Diagnostic Services Laboratory, LLC's phone number?
- The practice phone number listed in the NPPES registry for Western Diagnostic Services Laboratory, LLC is (805) 548-1550.
- Does Western Diagnostic Services Laboratory, LLC accept Medicare?
- Western Diagnostic Services Laboratory, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Western Diagnostic Services Laboratory, LLC?
- The authorized official listed on Western Diagnostic Services Laboratory, LLC's NPPES record is Kevin Ferguson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Western Diagnostic Services Laboratory, LLC's NPI active?
- Yes — Western Diagnostic Services Laboratory, LLC's NPI (1497120653) is active in the NPPES registry as of the last update on 2023-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.