Our Laboratories

Our Laboratories

Specimens are a small but crucial part of a patient’s life.

Laboratory diagnostic testing guides clinical decision-making, ensures timely patient treatment, and improves health outcomes.

Cleveland Clinic Laboratories—the Robert J. Tomsich Pathology & Laboratory Medicine Institute’s outreach division—enables access to Cleveland Clinic’s integrated reference laboratory services to local, national, and international healthcare providers and organizations.

Whether routine or esoteric, automated or expert-interpreted: every test performed impacts lives.

Importance of the Laboratory

Pathology & Laboratory Medicine are vital in diagnosing, treating, and monitoring disease.

Led by expert physicians and staff, Cleveland Clinic Laboratories applies subspecialized expertise to every test result, interpretation, and diagnosis through integrated approaches and proven best practices.

More than 100 board-certified anatomic and clinical pathologists—paired with hundreds of expertly-trained medical technologists and laboratory technicians—provide essential testing services to guide clinical decision-making for patients worldwide.

With a diverse array of test offerings within a centralized location, our laboratories offer a full suite of services without sacrificing turnaround time or compromising specimen integrity. Centralized data, readily-accessible support, and collaboration between the laboratory and ordering provider ultimately reduce the time to a patient’s diagnosis and treatment.

John Goldblum, MD - Chair of the Department of Pathology at Cleveland Clinic

The Right Test for the Right Patient at the Right Time

As one of the largest national laboratory testing providers within an academic medical center, Cleveland Clinic realizes that appropriate test utilization leads to accurate and timely diagnoses while decreasing unnecessary testing.   

As a result of multiple ongoing Laboratory Stewardship initiatives, our enterprise continues to increase patient and provider satisfaction while reducing healthcare costs.

Promoting Best Practices with Other Providers

Developing Evidence-Based Guidelines for Optimal Testing

Conscientious Use of Molecular Testing

Decreasing Unnecessary Phlebotomy

Reducing Unnecessary Duplicate Orders

Reducing Cost Through Judicious Use of Resources

World-Class Diagnostic Services

To support diagnostic efforts, staff employ leading laboratory technologies—including molecular testing, one of the most extensive immunohistochemical (IHC) and special stain menus in the country, laboratory genetic counseling, and ePathology (telepathology)—to develop accurate, in-depth diagnoses that assist in determining treatment pathways.

Our anatomic pathologists practice in a full subspecialty model with expertise in multiple subspecialties within anatomic pathology. Each subspecialty service regularly conducts consensus review sessions of unique and challenging cases to leverage the diagnostic knowledge of each team member. This approach ensures the evaluation of every specimen by a pathologist with diagnostic expertise within the case’s specific field of pathology.

The Department of Laboratory Medicine has been at the forefront of introducing new testing methods for clinical and research uses at Cleveland Clinic. In addition to providing an ever-expanding menu of tests available for clinical use, Laboratory Medicine provides the facilities and expertise to support translational research projects. Collaborative, multidisciplinary research working groups are functioning alongside clinical departments and the Lerner Research Institute at Cleveland Clinic.

Through close working relationships between our staff and Cleveland Clinic clinicians, our staff and technologists maintain a high level of expertise and understanding of a diagnosis’s clinical and therapeutic aspects.

Commitment to Quality, Research, & Education

Our laboratories are fully accredited and licensed by the College of American Pathologists (CAP) and certified according to the Clinical Laboratory Improvement Amendments (CLIA).  

Cleveland Clinic staff members have authored landmark book chapters in their practice fields and hold advisory positions in professional laboratory societies and organizations. Additionally, staff publish extensively in leading medical journals and frequently serve as guest speakers at premier pathology and clinical courses, conferences, and meetings.

In support of Cleveland Clinic’s mission statement, staff lead research initiatives and work closely alongside researchers within the Lerner Research Institute.


Expert primary & second opinion consults, including ePathology (telepathology)

1 in 7 US Board-Certified Pathologists has trusted Cleveland Clinic Laboratories for a second opinion consultation

Clinical Research

Dedicated account management & technical support provide customized options for test ordering and reporting

Our extensive menu of 3,500+ tests supports routine and esoteric testing needs


Extensive pathology & laboratory medicine test options with high volume capacity

Account customization integrates testing and reporting, providing insight and guidance with every test performed


Local account managers customize services according to a practice’s individual needs

40+ outpatient laboratory service centers across Ohio enable easy patient access and fast test turnaround times

Extended Care

Certified professional phlebotomy services, with customizable early morning and return-to-home draw scheduling options

Quality improvement reporting, including infectious disease, are available upon request

More Than 100 Years of Innovation

Cleveland Clinic is a global leader and model of healthcare for the future.

Since 1999, Cleveland Clinic has ranked as a Top 5 hospital in US News & World Report’sBest Hospital” rankings.

Our providers encounter and treat the most complex patient challenges than any comparable medical center in America, according to case-mix index data from The Centers for Medicare & Medicaid Services (CMS).

As a truly integrated healthcare delivery system, we take on the most complex cases and provide collaborative, multidisciplinary care supported by cutting-edge research and technology.

We work as a team, with the patient at the center of care. 

Cleveland Clinic Main Campus

Create an Account

Set up your account online.

Order a Test

Place an interfaced order or download and fill out a test requisition.

Community-based clinicians, pathologists, and healthcare providers around the world rely on Cleveland Clinic Laboratories to provide the expert diagnosis, second opinions, and subspecialty consultations that are the basis for effective patient care.