Labcorp is a global laboratory-services company headquartered in Burlington, North Carolina. The company provides diagnostic testing for patients and healthcare providers, specialty laboratory services, hospital laboratory support, drug testing, genetic and oncology testing, and laboratory services for pharmaceutical and biotechnology companies.
Consumers commonly search for the Labcorp corporate office address or phone number when they need assistance with a laboratory appointment, long wait, unexpected location closure, test results, patient portal, insurance claim, medical bill, payment plan, facility condition, employee interaction, privacy concern, or another unresolved patient-service complaint.
How to Contact Labcorp Corporate Office
Labcorp uses different support channels for corporate matters, patient billing, appointments, test results, healthcare providers, privacy concerns, and biopharma services. Routine patient questions should generally begin with the Labcorp Help Center or the department responsible for the issue rather than the corporate switchboard.
- Public Parent Company: Labcorp Holdings Inc.
- Operating Company: Laboratory Corporation of America Holdings
- Labcorp Corporate Address: 531 South Spring Street, Burlington, NC 27215
- Labcorp Corporate Phone Number: 1-336-229-1127
- Patient Billing and Insurance Support: 1-800-845-6167
- Clinical Contact Center: 1-800-762-4344
- HIPAA Privacy Office: 1-877-234-4722
- HIPAA Privacy Email: pr************@*****rp.com
- Official Website: Labcorp.com
- Patient Help Center: Labcorp Help Center
- Appointments and Locations: Find a Labcorp Location or Appointment
- Patient Portal: Labcorp Patient Portal
- Test Results Help: Labcorp Test Results Information
- Pay a Bill: Labcorp Bill Pay
- Rate a Lab Visit: Submit Feedback About a Labcorp Visit
- Careers: Labcorp Careers
- Investor Relations: Labcorp Investor Relations
- Stock Symbol: NYSE: LH
Labcorp Patient Billing Hours
Labcorp publishes patient-billing representative hours of Monday through Friday from 8:00 a.m. to 5:00 p.m. Eastern Time. Its automated telephone payment system may be available outside those hours.
The corporate number is intended for headquarters and business matters. It may not be the fastest route for questions about a bill, test result, appointment, insurance submission, or individual patient service center.
The fax number 1-336-513-4510 appears in older corporate listings but is not prominently published by Labcorp as a current general consumer-support fax number. Email, the official inquiry forms, or certified mail will generally provide a clearer record of a complaint.
How to Escalate a Labcorp Complaint
The appropriate escalation process depends on whether the concern involves a patient service center, billing, insurance, an appointment, test results, a privacy issue, an employer drug test, or a test ordered directly through Labcorp OnDemand.
- Identify the Labcorp location, department, bill, test, or appointment involved.
- Keep the appointment confirmation, invoice, insurance explanation of benefits, laboratory order, receipt, location address, visit date, and names of representatives contacted.
- For a problem during a visit, ask to speak with the patient service center supervisor or location manager.
- Use Labcorp’s “Rate Your Visit” option to submit location-specific feedback.
- For billing or insurance concerns, call 1-800-845-6167 and request that the issue be documented.
- For missing results or patient-record concerns, verify that the name, date of birth, address, and other information in the Labcorp Patient account match the information submitted by the ordering provider.
- Ask for a case, inquiry, reference, or invoice number and keep notes showing the date, representative’s name, and promised next step.
- If the concern remains unresolved, submit the appropriate Labcorp patient inquiry form or mail a concise written complaint to the Burlington corporate office.
Medical records, laboratory results, genetic information, insurance information, and appointment details may be protected health information. Do not post test results, diagnoses, prescription information, full invoice numbers, insurance identification numbers, dates of birth, or other private medical information in a public review.
How to Report a Problem at a Labcorp Location
Patients may encounter concerns involving cleanliness, temperature, accessibility, overcrowding, employee interactions, check-in kiosks, unexpected closures, appointment delays, or walk-in wait times.
When reporting a location problem, include:
- The full location address
- The date and approximate time
- Whether an appointment was scheduled
- How long the patient waited
- Whether the location was unexpectedly closed
- The condition of the waiting room, restroom, or collection area
- Whether the concern was reported to an employee
- The response provided by the location
- Photographs when legally and safely obtained without including other patients
Use Labcorp’s location finder to select the patient service center and submit visit feedback. For immediate safety, sanitation, accessibility, or building concerns, patients may also contact the appropriate property manager, local health department, building department, or other responsible authority when warranted.
Labcorp Appointments and Walk-Ins
Labcorp accepts walk-ins at many patient service centers, but the company recommends scheduling an appointment to reduce waiting and confirm that the location performs the service needed.
Patients can schedule, modify, reschedule, or cancel many appointments through the MyLabcorp mobile app or online patient portal.
Before visiting, confirm:
- The location address
- The current hours
- Whether an appointment is required
- Whether the location performs the ordered test
- Whether fasting or other preparation is required
- What identification and insurance information to bring
- Whether the laboratory order has been received
- Whether the location has temporarily closed or changed hours
Unexpected closures, staffing issues, severe weather, maintenance, and other events can affect operating hours. Check the appointment status and location listing shortly before leaving for the visit.
Labcorp Test Results and Patient Portal
Many Labcorp test results are available through the MyLabcorp app and Labcorp Patient portal when processing is complete.
Standard tests may be available within several days, while genetic, pathology, specialty, and other complex tests may take longer. Some employment drug-screening results are not released through the ordinary patient portal.
If results have not appeared:
- Confirm that the information in the Labcorp Patient account is accurate.
- Ask the ordering provider to verify the patient name, date of birth, address, and other identifying information submitted with the test.
- Check whether the test is one that Labcorp releases through the portal.
- Contact the provider who ordered the test.
- Use Labcorp’s patient inquiry form if the results remain unavailable after the expected processing period.
Labcorp personnel can provide information about the testing and reporting process, but patients should discuss the medical meaning of laboratory results with the healthcare professional who ordered the test.
Labcorp Billing and Insurance Complaints
Labcorp bills patients separately from the physician, hospital, urgent-care center, or other healthcare provider who ordered the testing.
A patient may receive a Labcorp bill because:
- An insurance deductible or coinsurance applies
- The insurer did not cover the test
- Insurance information was missing or incorrect
- The test was considered out of network
- The insurer requested additional information
- The ordering provider supplied an incorrect billing or diagnosis code
- The patient elected a self-pay or directly purchased test
- The insurance company paid only part of the laboratory charge
When disputing a bill, gather:
- The Labcorp invoice
- The insurance explanation of benefits
- The laboratory order
- The date of service
- The name of the ordering provider
- Proof of insurance coverage
- Records of prior payments
- Any written estimate or quoted self-pay price
Call Labcorp Patient Billing at 1-800-845-6167 and ask whether the insurance claim was submitted, denied, returned, or applied to the patient’s deductible.
If the issue involves a diagnosis or billing code supplied by the physician, the ordering provider may need to correct and resubmit information before Labcorp or the insurance company can reconsider the charge.
Labcorp Payment Plans and Financial Assistance
Labcorp offers payment-plan options for patients who cannot pay an invoice in full.
Payment arrangements may be established through:
- The MyLabcorp mobile app
- The Labcorp Patient portal
- A participating patient service center
- The Patient Billing department at 1-800-845-6167
Patients experiencing financial hardship should ask about available payment arrangements or assistance programs before allowing an account to become seriously past due.
Labcorp advises patients that it is not affiliated with third-party bill-payment companies such as Doxo. Paying Labcorp directly can help avoid third-party convenience fees and confusion about whether a payment reached the correct account.
How to Report a Labcorp Privacy Concern
Patients who believe their medical or personal information was improperly accessed, disclosed, mailed, discussed, or displayed can contact the Labcorp HIPAA Privacy Office.
- HIPAA Privacy Phone: 1-877-234-4722
- HIPAA Privacy Email: pr************@*****rp.com
- Mail: HIPAA Privacy Officer, Labcorp, 531 South Spring Street, Burlington, NC 27215
Include enough information to identify the incident, but avoid sending unnecessary medical records or sensitive documents through an unsecured email channel.
About Labcorp
Labcorp’s history includes several laboratory businesses that developed independently before combining into the company known today.
Biomedical Laboratories was founded in Burlington in 1969 by Thomas Edward Powell III and his brothers, Dr. James B. Powell and John Powell. National Health Laboratories developed separately and became another major clinical laboratory company.
In 1995, National Health Laboratories and Roche Biomedical Laboratories merged to create Laboratory Corporation of America Holdings, headquartered in Burlington.
- Burlington Laboratory Roots: 1969
- Labcorp Created: 1995
- Headquarters: Burlington, North Carolina
- Public Parent Company: Labcorp Holdings Inc.
- Chairman, President and CEO: Adam H. Schechter
- Employees: Approximately 71,000 worldwide
- Patient Service Centers: Nearly 2,200
- In-Office Phlebotomists: More than 7,000
- 2025 Revenue: Approximately $14 billion
- Stock Symbol: NYSE: LH
- Primary Businesses: Diagnostics Laboratories and Biopharma Laboratory Services
Who Is the CEO of Labcorp?
Adam H. Schechter is chairman, president and chief executive officer of Labcorp.
Schechter became CEO in November 2019 and chairman of the board in May 2020. Before joining Labcorp as CEO, he held senior leadership positions at Merck involving pharmaceutical operations, global human health, vaccines, and consumer healthcare.
What Is Labcorp’s Legal Company Name?
The publicly traded parent company is Labcorp Holdings Inc.
In May 2024, Labcorp implemented a holding-company reorganization. Labcorp Holdings Inc. replaced Laboratory Corporation of America Holdings as the publicly traded parent, while Laboratory Corporation of America Holdings continued as a wholly owned operating subsidiary.
The stock continued trading under the symbol LH without interruption.
What Services Does Labcorp Provide?
Labcorp provides services for patients, physicians, hospitals, employers, government agencies, pharmaceutical companies, biotechnology companies, researchers, and health plans.
Services may include:
- Routine blood and urine testing
- Clinical chemistry and hematology
- Pathology and tissue testing
- Genetic and inherited-disease testing
- Women’s health and prenatal testing
- Oncology and cancer testing
- Neurology and neurodegenerative-disease testing
- Allergy and autoimmune testing
- Infectious-disease testing
- Drug and alcohol testing
- Employment and workplace testing
- Paternity and relationship testing
- Hospital and health-system laboratory services
- Central laboratory services for clinical research
- Nonclinical and drug-development laboratory services
- Direct-to-consumer testing through Labcorp OnDemand
Not every patient service center performs every test. Specialized testing may require collection at a particular location or shipment to a regional or specialty laboratory.
Labcorp OnDemand Testing
Labcorp OnDemand allows consumers to purchase selected laboratory tests without first obtaining a traditional physician’s order, subject to state availability and the requirements of the test.
OnDemand offerings may include wellness, nutrition, hormone, sexual-health, immunity, heart-health, men’s-health, and women’s-health testing.
The number 1-800-833-3935 is used in official Labcorp material for OnDemand and certain at-home collection-kit support. It should not be described as Labcorp’s general corporate or patient-billing number.
Questions about an OnDemand order, refund, damaged kit, or at-home collection should be directed through the support information provided with that specific order.
Did Labcorp Own Covance?
Labcorp acquired Covance in 2015, expanding its drug-development and clinical-research services.
In 2023, Labcorp separated most of its clinical-development and commercialization business into an independent publicly traded company named Fortrea.
Labcorp continues to provide biopharma laboratory services, including central laboratory, nonclinical development, bioanalytical, biomarker, companion-diagnostic, and other scientific services.
Labcorp Reviews, Complaints and Patient Feedback
Recent reviews submitted to CorporateOfficeHeadquarters.com describe both positive and negative experiences involving patient service centers, appointments, walk-in policies, cleanliness, employees, check-in systems, telephone support, and unexpected location closures.
Complaint themes currently visible on the page include:
- Facility cleanliness and condition: A reviewer described an uncomfortable patient center with poor ventilation, worn seating, mildew odors, dirty flooring, and an unsatisfactory restroom.
- Overcrowded waiting rooms: Patients have reported small waiting areas with insufficient seating and long queues.
- Unexpected location closures: One patient arrived at a location that appeared open according to the posted hours but found that it was closed.
- Long appointment and walk-in waits: Reviews have described waits of more than an hour despite scheduled appointments or early arrival.
- Appointment-priority confusion: Some patients questioned how appointments and walk-ins were ordered and why later arrivals appeared to be called first.
- Digital check-in difficulties: A reviewer objected to being directed toward QR codes, online scheduling, kiosks, and additional portals without an easy human-assisted alternative.
- Incorrect or confusing telephone information: One patient reported being routed to billing while seeking appointment help and receiving inaccurate location hours.
- Employee interactions: Reviews have included complaints about rude or dismissive communication as well as praise for pleasant and efficient phlebotomists and check-in employees.
- Staffing concerns: Some submissions described technicians appearing overwhelmed by the number of patients scheduled for the same time.
These reviews describe individual experiences at particular locations and do not establish conditions across Labcorp’s entire network.
Wait times, staffing, building condition, accessibility, appointment availability, and employee service can vary by patient service center. Reviews should identify the location involved without disclosing private medical information.
Labcorp’s Competitive Landscape
Labcorp competes in clinical diagnostics, specialty laboratory testing, genetics, pathology, drug testing, hospital laboratory services, direct-to-consumer testing, and biopharma laboratory services.
Three major competitors include:
- Quest Diagnostics Corporate Office – Quest is Labcorp’s largest direct U.S. competitor in clinical laboratory testing, patient service centers, employer testing, physician services, and diagnostic information.
- Sonic Healthcare – Sonic operates clinical laboratory and pathology businesses in the United States and several international markets.
- Eurofins Scientific – Eurofins competes in laboratory testing across clinical diagnostics, pharmaceuticals, food, environment, genomics, and other scientific fields.
Other competitors and alternatives include:
- BioReference Health – BioReference provides clinical diagnostics, specialty testing, patient collection centers, and laboratory services, particularly in New York and New Jersey.
- Clinical Pathology Laboratories – CPL operates regional clinical laboratories and patient service centers as part of Sonic Healthcare USA.
Labcorp also faces growing competition from hospital laboratories, regional laboratory networks, physician-office testing, pharmacy-based collection sites, and consumer health-testing companies.
Related Healthcare Corporate Office Pages
- Quest Diagnostics Corporate Office
- CVS Health Corporate Office
- Walgreens Corporate Office
- KEDPLASMA Corporate Office
Additional Labcorp Patient and Consumer Resources
- Labcorp Customer Service Numbers, Reviews and Complaints
- Labcorp Patient Help Center
- Find a Labcorp Location or Schedule an Appointment
- Access the Labcorp Patient Portal and Bill Pay
- Labcorp Billing and Insurance Information
- Labcorp Test Results Help
- Rate a Labcorp Patient Service Center Visit
- Labcorp HIPAA Privacy Information
- Search Labcorp Job Openings
Frequently Asked Questions About Labcorp
Where is the Labcorp corporate office?
Labcorp is headquartered at 531 South Spring Street, Burlington, NC 27215.
What is the Labcorp corporate phone number?
Labcorp’s corporate phone number is 1-336-229-1127. Patient billing, appointments, test results, and location concerns should generally be directed to the appropriate patient-support department.
What is Labcorp’s customer-service phone number?
Labcorp Patient Billing can be reached at 1-800-845-6167. Labcorp uses its online Help Center and patient inquiry forms for many other patient-support matters.
What are Labcorp billing customer-service hours?
Patient Billing representatives are normally available Monday through Friday from 8:00 a.m. to 5:00 p.m. Eastern Time.
How do I file a complaint with Labcorp?
Begin with the supervisor at the location or department involved. Submit location-specific feedback through Labcorp’s Rate Your Visit page and use the appropriate patient-support or billing channel if the matter is not resolved.
How do I dispute a Labcorp bill?
Call 1-800-845-6167 with the invoice, date of service, insurance explanation of benefits, ordering-provider information, and records of any payments or prior calls.
How do I schedule or cancel a Labcorp appointment?
Use the MyLabcorp app, Labcorp Patient portal, or online location finder. Keep the appointment confirmation number when modifying or canceling a visit.
Do I need an appointment at Labcorp?
Many locations accept walk-ins, but Labcorp recommends scheduling an appointment. Certain tests or services may require an appointment or a specific location.
How do I get my Labcorp test results?
Results are generally available through the MyLabcorp app or Labcorp Patient portal after processing. The healthcare provider who ordered the test should explain what the results mean.
What should I do if my Labcorp results are missing?
Confirm that the personal information in the patient portal matches the information submitted by the ordering provider. If the results remain unavailable after the expected time, contact the provider and use Labcorp’s patient inquiry form.
Who owns Labcorp?
Labcorp Holdings Inc. is a publicly traded company owned by its shareholders. It trades on the New York Stock Exchange under the symbol LH.
Who is the CEO of Labcorp?
Adam H. Schechter is chairman, president and chief executive officer of Labcorp.
When was Labcorp founded?
Labcorp’s Burlington laboratory roots date to 1969. The present Labcorp company was created in 1995 through the merger of National Health Laboratories and Roche Biomedical Laboratories.
How many Labcorp locations are there?
Labcorp reports nearly 2,200 patient service centers in the United States, along with more than 7,000 in-office phlebotomists located in customer offices and facilities.
What is the 1-800-833-3935 Labcorp number?
Labcorp uses 1-800-833-3935 for Labcorp OnDemand and certain at-home testing or collection-kit support. It should not be treated as the main corporate or billing number.
How do I report a Labcorp privacy problem?
Contact the HIPAA Privacy Office at 1-877-234-4722 or pr************@*****rp.com. Written complaints may be mailed to the Burlington corporate address.
How do I apply for a job at Labcorp?
Visit the Labcorp careers website to search for patient-service, phlebotomy, laboratory, courier, billing, technology, scientific, administrative, and corporate positions.
Why Trust CorporateOfficeHeadquarters.com?
CorporateOfficeHeadquarters.com has helped consumers locate corporate addresses, headquarters phone numbers, executive information, customer-service contacts, and company details since 2004.
The website also provides a place where consumers can share reviews, complaints, photographs, compliments, and the outcomes of their customer-service experiences. These submissions can help identify recurring concerns involving appointments, wait times, facilities, billing, results, digital access, and employee interactions.
Corporate addresses, telephone numbers, patient-support procedures, laboratory locations, and leadership positions can change. Visitors should verify important information through Labcorp’s official website before mailing documents, making payments, sharing personal information, or making healthcare decisions.
Disclaimer
CorporateOfficeHeadquarters.com is an independent consumer information website and is not affiliated with, endorsed by, or sponsored by Labcorp Holdings Inc., Laboratory Corporation of America Holdings, Labcorp OnDemand, MyLabcorp, or any individual Labcorp patient service center.
This page is intended for corporate-contact, customer-service, review, and general informational purposes. It does not provide medical advice, interpret laboratory results, diagnose medical conditions, or replace advice from a qualified healthcare professional.
Labcorp, MyLabcorp, Labcorp OnDemand, and related names and logos are trademarks of their respective owners. Corporate and patient-support information is believed to be accurate at the time of publication but may change without notice.
Reviews and comments represent the opinions and experiences of individual visitors and do not necessarily reflect the views of CorporateOfficeHeadquarters.com. Allegations contained in consumer reviews have not necessarily been independently verified.
Share Your Labcorp Experience
Have you visited a Labcorp patient service center, contacted patient billing, scheduled an appointment, used the patient portal, requested test results, or attempted to escalate a complaint? Share your experience below.
When leaving a review, consider mentioning the Labcorp location, approximate date, type of service, wait time, customer-support channel used, whether Labcorp responded, and whether the matter was resolved.
Do not include laboratory results, diagnoses, medical records, dates of birth, insurance numbers, payment-card details, complete invoice numbers, passwords, home addresses, or other sensitive personal information.