Laboratory Corporation of America Holdings Headquarters & Corporate Office

About Labcorp

Labcorp is a global laboratory-services company headquartered in Burlington, North Carolina. The company provides routine and specialty diagnostic testing, pathology, genetics, oncology testing, women’s health services, drug-development laboratory services, clinical-trial support, biomarker testing, companion diagnostics, and other scientific services to patients, physicians, hospitals, health plans, pharmaceutical companies, biotechnology companies, and researchers.

Labcorp is one of the world’s largest laboratory organizations. Current company facts report approximately 71,000 employees, about $14 billion in fiscal 2025 revenue, nearly 2,200 patient service centers, more than 7,000 in-office phlebotomists, and clients in approximately 100 countries. Labcorp says it performed more than 750 million tests worldwide and supported more than 85% of new drugs and therapeutic products approved by the FDA in 2025.

The company is publicly traded on the New York Stock Exchange under ticker LH and is led by Adam H. Schechter, Chairman, President and Chief Executive Officer. Its current headquarters is 531 South Spring Street, Burlington, NC 27215. In September 2026, Labcorp reaffirmed its long-term growth strategy, emphasizing the combination of diagnostics, biopharma services, science, technology, and global scale.

Quick Information

Corporate Phone Number

Labcorp does not prominently publish one general public headquarters switchboard on its current corporate-facts page.

For patient billing and account assistance

800-845-6167.

Customer Service Number

For patient billing and payment concerns

800-845-6167

Live Patient Billing support is available

Monday to Friday: 8:00 AM to 5:00 PM ET

Automated payment service is available 24/7.

Corporate Office Address

Labcorp
531 South Spring Street
Burlington, NC 27215
United States

Headquarters Address

Labcorp
531 South Spring Street
Burlington, NC 27215
United States.

Email

Investor Relations: investor@labcorp.com
Media: media@labcorp.com
Community Affairs: commaff@labcorp.com.

Industry

Laboratory Services, Diagnostics, Clinical Testing, Genetics, Oncology, Pathology and Biopharma Drug Development

Founded

Labcorp traces its current business through decades of diagnostic-laboratory growth and consolidation and today operates as Labcorp Holdings Inc.

Number of Employees

Approximately

71,000 employees.

Patient Access Points

Approximately

2,200 patient service centers

plus more than

7,000 in-office phlebotomists.

Annual Revenue

Approximately

$14 billion in FY2025 revenue.

Website

https://www.labcorp.com/

Investor Relations / Careers

Investor Relations:

https://ir.labcorp.com/

Careers

https://careers.labcorp.com/

Labcorp Products & Services

Routine Laboratory Testing

Labcorp performs common blood, urine, and other diagnostic tests ordered by physicians and other healthcare professionals. Routine testing can support preventive care, disease monitoring, medication management, and diagnosis.

Patient Service Centers

Labcorp operates nearly 2,200 patient service centers throughout the United States where patients can have specimens collected for ordered laboratory tests. Many locations support online appointment scheduling and walk-in services.

In-Office Phlebotomy

More than 7,000 Labcorp phlebotomists work in physician offices and healthcare facilities, providing specimen-collection access closer to where patients receive care.

Primary Care Testing

Labcorp provides laboratory testing to support primary-care physicians managing routine wellness, cardiovascular risk, metabolic conditions, diabetes, thyroid disorders, infections, and other common conditions.

Oncology Testing

Labcorp Oncology supports cancer screening, diagnosis, prognosis, hereditary risk assessment, biomarker testing, treatment selection, and treatment-response monitoring. Its portfolio includes tissue testing, liquid biopsy, next-generation sequencing, and other precision-oncology capabilities.

Genetic and Genomic Testing

Labcorp offers hundreds of genetic tests covering hereditary disease, reproductive genetics, oncology, rare conditions, and other clinical specialties. Current provider materials list more than 400 genetic tests across clinical specialty areas.

Women’s Health Testing

Labcorp provides pregnancy, reproductive-health, infertility, hereditary cancer, and women’s health laboratory services. Its women’s health operations report performing more than 250 million women’s health tests annually.

Reproductive Genetics

Through specialized laboratory operations such as Integrated Genetics, Labcorp provides carrier screening, prenatal genetic testing, diagnostic testing, and hereditary cancer testing.

Pathology

Labcorp offers anatomic pathology and histology services for physicians, hospitals, cancer programs, and clinical trials. Services can include tissue evaluation, immunohistochemistry, molecular testing, and specialized pathology.

Allergy Testing

Laboratory allergy testing can help healthcare providers evaluate sensitivities and allergic responses based on clinically appropriate testing ordered for the patient.

Neurology Testing

Labcorp’s neurology portfolio supports testing related to neurological disorders, biomarkers, genetics, and other conditions affecting the brain and nervous system.

Rheumatology Testing

Labcorp provides testing that can assist physicians evaluating autoimmune and rheumatic diseases, including laboratory markers used alongside clinical assessment.

Pediatric Testing

Pediatric laboratory services range from newborn and anemia testing to allergy, tuberculosis-risk, metabolic, genetic, and other age-appropriate laboratory tests.

Labcorp OnDemand

Labcorp OnDemand allows consumers to purchase selected laboratory tests without the traditional process of first obtaining a test order from their personal physician, where permitted and appropriate.

MyLabcorp

MyLabcorp provides digital access to laboratory results, billing information, payments, appointment tools, and other patient-account functions.

Clinical Trial Laboratory Services

Labcorp supports global clinical trials with central laboratory testing, specimen logistics, biomarker analysis, data integration, assay development, and operational services across more than 100 countries.

Biopharma Drug Development Services

Biopharma customers use Labcorp for toxicology, pharmacology, metabolism, bioanalysis, central labs, genomics, regulatory guidance, clinical-trial support, and commercialization services.

Companion Diagnostics

Labcorp develops and supports companion diagnostic tests that help identify patients who may benefit from specific targeted therapies. These services extend from assay development through regulatory approval and commercialization.

Biomarker Services

Labcorp provides biomarker testing to help pharmaceutical and biotechnology companies understand disease biology, select patients, assess treatment effects, and advance precision medicine.

Labcorp Corporate Phone Numbers

Corporate Phone Number

Labcorp does not prominently publish a single general public corporate switchboard on its current corporate-facts page.

Patient and client contacts should use the department-specific numbers below.

Corporate Headquarters Number

No separate verified universal public headquarters number is currently promoted.

Headquarters Number

For corporate correspondence use

531 South Spring Street, Burlington, NC 27215

Department-specific phone routing is preferred.

Corporate Office Number

A universal public corporate-office number is not prominently listed.

Customer Service Number

For patient billing:

800-845-6167.

Patient Billing Number

800-845-6167

Live service

Monday to Friday: 8:00 AM to 5:00 PM ET

Automated bill payment is available 24/7.

Central Billing Services

800-343-4407

This number is published for specialized central billing services.

Specialty Client Services

800-444-9111

Published hours include Monday through Friday and limited Saturday support for the relevant specialty-testing client service center.

Healthcare Provider Sales

Labcorp routes provider sales requests through its official online contact form rather than publishing one universal provider-sales phone number.

Toll-Free Number

Patient Billing

800-845-6167

Investor Relations Number

Labcorp does not prominently publish a direct current Investor Relations phone on its Investor FAQ.

Email: investor@labcorp.com.

Transfer Agent Number

1-800-937-5449

Labcorp’s transfer agent can assist shareholders with certificates, address changes, and related shareholder-service matters.

Media / Press Number

336-436-5076

or

336-436-5005

Email: media@labcorp.com.

Community and Public Affairs Number

336-584-5171

Email: commaff@labcorp.com.

Billing Mailing Support

Patient payments by mail can be sent to

P.O. Box 2240
Burlington, NC 27216-2240.

Human Resources Number

Labcorp does not publish one universal applicant HR number.

Careers

https://careers.labcorp.com/

Emergency / After-Hours Number

Labcorp does not publish one universal emergency corporate hotline.

Medical emergencies should be directed to emergency medical services, not a laboratory Customer Service department.

How to Reach a Real Person at Labcorp

For most patient billing questions, call 800-845-6167 Monday through Friday from 8:00 AM to 5:00 PM Eastern Time. Have the patient’s name, date of birth, eight-digit invoice number, test date, insurance information, and billing notice available. The same number also supports automated payment at any time.

For questions about a specific test result, specimen, appointment, or patient service center experience, begin through the Labcorp Patient Help Center or the location where the collection took place. Patients should generally discuss the clinical interpretation of results with the healthcare professional who ordered the test because Labcorp supplies laboratory information but does not replace the treating provider’s medical assessment.

Healthcare providers and business clients have separate Labcorp contact channels. Specialty-testing clients may use 800-444-9111, while investor, media, and community-affairs questions should use the corresponding corporate contacts rather than Patient Billing.

Labcorp Headquarters & Corporate Office Address

Current Headquarters

Labcorp
531 South Spring Street
Burlington, NC 27215
United States

Labcorp’s current corporate-facts page lists this as its headquarters.

Corporate Office

The corporate office and headquarters are located at

531 South Spring Street
Burlington, NC 27215

Patient Billing Mailing Address

For payments and qualifying billing correspondence

Labcorp
P.O. Box 2240
Burlington, NC 27216-2240

Patients should include the invoice stub and eight-digit invoice number when mailing payment.

Healthcare Provider Mailing Address

Labcorp’s provider contact materials separately list

Labcorp
P.O. Box 2250
Burlington, NC 27216-2240.

Community Affairs Address

Laboratory Corporation of America
Corporate Community Affairs
531 South Spring Street
Burlington, NC 27215.

How to File a Complaint Against Labcorp

Labcorp complaints may involve billing, insurance processing, specimen collection, staff interactions, laboratory delays, incorrect demographic information, privacy, a patient service center experience, test-result access, or a business-client issue. Before escalating, collect the invoice number, patient name, date of birth, collection date, patient service center address, insurance explanation of benefits, physician order information, receipts, and records of previous communications.

Step 1: Contact Customer Service

For billing complaints, start with 800-845-6167. Explain the disputed amount, insurance concern, payment issue, or account problem and provide the eight-digit invoice number. Ask the representative to review the account and document the complaint. If the problem involves a patient service center rather than billing, use Labcorp’s Patient Help Center or location-specific support route.

Step 2: Contact the Relevant Department

A billing dispute should remain with Patient Billing, while a provider-account issue should use healthcare-provider support. Specialty-testing clients can use the appropriate specialty service center, and investors or media representatives should use corporate contacts. Correct routing is particularly important because Labcorp operates routine diagnostics, specialty laboratories, oncology, women’s health, and biopharma businesses.

Step 3: Request Supervisor or Management Review

If the first representative cannot resolve the issue, request a supervisor or account-review specialist. Provide previous case information, an explanation of benefits from the insurer where applicable, proof of payment, appointment or specimen details, and a concise timeline. Ask for written confirmation of any adjustment, rebilling, refund, or investigation.

Step 4: Use the Company’s Written Complaint Channel

Use Labcorp’s official online Contact Us and Help Center forms to create a written complaint record. For billing matters, include the invoice number but avoid sending unnecessary sensitive medical information through channels that do not request it. Keep screenshots or confirmation emails showing when the complaint was submitted.

Step 5: Contact Corporate Headquarters

For a significant unresolved complaint, write to Labcorp, 531 South Spring Street, Burlington, NC 27215. Include the relevant department, patient or client identification information needed to locate the account, dates, previous case numbers, and copies of supporting documentation. Do not send original medical records or irreplaceable documents.

Step 6: Use the Specialized Complaint or Dispute Department

Billing cases may require further review through Patient Billing or Central Billing Services, while provider and specialty-testing issues can be escalated through the appropriate client-service organization. Privacy or compliance matters should be handled through Labcorp’s applicable privacy or compliance process rather than general billing support.

Step 7: File With the Appropriate Regulator

The appropriate regulator depends on the complaint. Clinical laboratory concerns may involve CMS under CLIA, a state laboratory authority, state health department, or another healthcare regulator. Privacy complaints may fall under the U.S. Department of Health and Human Services Office for Civil Rights when HIPAA applies.

Step 8: Use Consumer Protection or Financial Dispute Options

For unresolved billing disputes, patients may also work with their health insurer, employer health plan, state insurance regulator, state Attorney General, or other applicable consumer-protection office. Card-payment disputes should be raised with the issuing bank only when appropriate and supported by documentation.

Step 9: Consider Formal Legal or Arbitration Procedures

For substantial unresolved disputes, review any agreements, notices, insurance documents, or terms applicable to the service. Independent legal advice may be appropriate before pursuing formal litigation or another dispute mechanism, particularly where a case involves significant financial harm, privacy issues, alleged clinical negligence, or complex insurance coverage.