Laboratory Corporation of America
NPI 1902233521 · Clinical Medical Laboratory · Walnut Creek, CA
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Laboratory Corporation of America is a Clinical Medical Laboratory organization in Walnut Creek, CA (NPI 1902233521).
Provider details
- NPI number
- 1902233521
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Kimberly Williams, Vp(800) 222-7566
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
3,267 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,749 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,518 | $9 |
Typical Medicare-allowed amounts for these services range $8–$9 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-09-27
- Last updated
- 2013-12-11
Frequently asked questions
- What is Laboratory Corporation of America's NPI number?
- Laboratory Corporation of America's National Provider Identifier (NPI) is 1902233521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Laboratory Corporation of America?
- Laboratory Corporation of America is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Laboratory Corporation of America located?
- Laboratory Corporation of America's practice location on file with NPPES is 500 Lennon Ln, Walnut Creek, CA 94598-2415.
- What is Laboratory Corporation of America's phone number?
- The practice phone number listed in the NPPES registry for Laboratory Corporation of America is (925) 979-9028.
- Does Laboratory Corporation of America accept Medicare?
- Laboratory Corporation of America 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 Laboratory Corporation of America?
- The authorized official listed on Laboratory Corporation of America's NPPES record is Kimberly Williams, Vp. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Laboratory Corporation of America's NPI active?
- Yes — Laboratory Corporation of America's NPI (1902233521) is active in the NPPES registry as of the last update on 2013-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.