CLIA number verification
Verify a CLIA lab number
Enter a CLIA number to open the matching lab page with imported CMS identity, certificate/status fields, source freshness, and official QCOR verification links.
Imported source
Source status
Check the source status page for the latest CMS CLIA import timestamp and row count.
Official verification
CMS QCOR lookup
Open QCOR for current certificate context and CLIA fields not imported locally.
CMS source citation
CLIA number verification sources
Last verified: 2026-08-01. date_retrieved: 2026-08-01. CMS points lab demographics lookup users to QCOR and publishes Laboratory Registry information for public review. Use the official CMS QCOR lab lookup to confirm current certificate context before acting. SourceCheckHealth also imports CMS Provider of Services clinical laboratory rows when available.
Review fields
What the lab page can show
- Lab identity: CLIA number, lab name, city, state, and ZIP when the imported CMS row is present.
- Certificate/status: imported certificate or status fields when included in the local CMS clinical laboratory source.
- Verification path: official CMS/QCOR links remain visible because SourceCheckHealth is not a final CLIA certification, credentialing, or compliance decision.
Certificate scope
The five CMS CLIA certificate types
A CLIA number is the lab's federal identifier; the certificate it carries defines which test complexities the lab is authorized to perform. A “CLIA license lookup” is really a lookup of the lab's CLIA certificate— labs are authorized under a CLIA certificate, not a separate license. CMS issues five certificate types under the CLIA program. Last verified: 2026-08-01. date_retrieved: 2026-08-01.
- Certificate of Waiver (CoW)
- Authorizes a lab to perform only CLIA-waived tests.
- Provider-Performed Microscopy (PPM)
- Covers specific microscopy procedures a physician, midlevel practitioner, or dentist performs during a patient's visit, plus waived tests.
- Certificate of Registration (CoR)
- Allows non-waived (moderate and/or high complexity) testing until the lab is surveyed for compliance.
- Certificate of Compliance (CoC)
- Issued after a State Agency or CMS survey finds the lab compliant with applicable CLIA requirements.
- Certificate of Accreditation (CoA)
- Issued on the basis of accreditation by a CMS-approved accreditation organization.
The imported CMS clinical laboratory row shows only fields present in the source file. For the current certificate type, status, and any expiration context, verify the live record in CMS QCOR — SourceCheckHealth is not a final certification or compliance decision.
Official CMS tool
What is CMS QCOR, and what does it show?
QCOR stands for Quality, Certification and Oversight Reports — the official CMS system at qcor.cms.gov that lists CLIA laboratories certified by HHS with the CLIA number, facility name and address, where the laboratory testing is performed, the type of CLIA certificate, and the date the certificate expires, updated weekly. CMS states that the listing represents the information in its system at the time of the update, and QCOR lets you search by CMS Certification Number, by state, or by ZIP code, and limit results by year range. Last verified: 2026-08-01. date_retrieved: 2026-08-01.
Imported CMS row vs. the live QCOR record
This site imports the CMS Provider of Services file for clinical laboratories. That file does not carry every field QCOR displays, so the two are not interchangeable. The comparison below is the honest scope of what a lookup here can and cannot answer.
| Field | Imported CMS row here | CMS QCOR |
|---|---|---|
| CLIA number | Yes | Yes |
| Facility name and address | Yes | Yes |
| Certificate type | When present in the imported row | Yes |
| Certificate status | When present in the imported row | Yes |
| Certificate expiration date | Not imported | Yes |
| Where laboratory testing is performed | Not imported | Yes |
| Search by state, ZIP, or year range | No — keyed on CLIA number | Yes |
| Update cadence | As of the last import (see source status) | Weekly |
One further distinction matters for a compliance review: the QCOR demographic lookup and the CMS Laboratory Registry are different records. The registry is the adverse-action side — laboratories convicted under federal or state fraud-and-abuse laws, laboratories whose CLIA certificates were suspended, limited, or revoked together with the reasons, and persons convicted of violating CLIA requirements. A lab can return a clean demographic record and still appear in the registry, so reading only the demographic lookup leaves that unanswered.
Need the expiration field specifically? See the CLIA expiration date lookup for why it is not in the imported file and where to read it, or the CMS QCOR CLIA lookup walkthrough for the step-by-step search.
Example lab page
Open a CLIA lookup example
See how imported CMS fields, source freshness, and QCOR links appear on an individual lab record.
View CLIA 24D0404292Source freshness
Check the latest import status
Review source timestamps, row counts, and official links before interpreting a lab lookup result.
Review source statusReviewed by SourceCheck Health
Last reviewed: 2026-08-01. date_retrieved: 2026-08-01.
CLIA lookup guidance and the CMS certificate-type, POS clinical-laboratory dataset, and QCOR references on this page are reviewed against the official CMS sources named here before the public CLIA guidance is updated.
FAQ
Practical notes
Why is CLIA marked limited?
CMS QCOR may be unsuitable for automated ingestion. This MVP links to official lookup unless reliable structured data is imported.
Can I use this as a CLIA certification lookup?
Use it to review imported lab identity, certificate/status fields, and source import time, then verify the current certificate context in official CMS QCOR before acting.
Does this show a CLIA certificate expiration date?
Only fields present in the imported CMS clinical laboratory row are shown. Open CMS QCOR for current certificate details and any fields not imported here.
Is a CLIA license lookup the same as a CLIA certificate lookup?
Yes. Labs are authorized under a CLIA certificate rather than a separate license, so a CLIA license lookup means reviewing the lab's CLIA certificate type and status. Use the imported CMS identity and certificate/status fields, then confirm the current certificate in official CMS QCOR.
How do I look up a CLIA number?
Enter the lab's CLIA number to open the matching record with imported CMS identity, certificate/status fields, and source freshness. CMS issues five certificate types (Waiver, PPM, Registration, Compliance, Accreditation), and the certificate type defines which test complexities the lab may perform. Open the official CMS QCOR lookup for current CLIA number verification before acting.
What is CMS QCOR?
QCOR stands for Quality, Certification and Oversight Reports. It is the official CMS system at qcor.cms.gov that publishes information for evaluating laboratory performance, including a listing of CLIA laboratories certified by HHS. For each lab it shows the CLIA number, facility name and address, where the laboratory testing is performed, the type of CLIA certificate, and the date the certificate expires. CMS updates that listing weekly, and it represents the information in the CMS system at the time of the update. Verified against CMS 2026-08-01.
What does CMS QCOR show that this CLIA lookup does not?
Two fields and one cadence. QCOR carries the certificate expiration date and where the laboratory testing is performed; neither is imported here, because the CMS Provider of Services clinical-laboratory file this site imports does not carry them. QCOR also refreshes weekly, while this site shows the state of its last import — the timestamp and row count are on the source status page. QCOR additionally lets you search by state, ZIP code, or CMS Certification Number and limit results by year range, whereas this lookup is keyed on the CLIA number. Treat QCOR as the authority for current certificate context and this site as a fast read of the imported public row.
Is the QCOR Laboratory Registry the same as the QCOR CLIA lab lookup?
No — they answer different questions. The demographic lookup returns a lab's identity and certificate fields. The CMS Laboratory Registry is the adverse-action record: laboratories convicted under federal or state fraud-and-abuse laws, laboratories whose CLIA certificates were suspended, limited, or revoked together with the reasons for those actions, and persons convicted of violating CLIA requirements. A lab can return a clean demographic record and still appear in the registry, so a compliance review that only reads the demographic lookup is incomplete. Verified against CMS 2026-08-01.