Diagnostics You Can Trust

Who We Are

Promus Diagnostics is a CAP-Accredited & CLIA-Certified laboratory that focuses on delivering fast, accurate and reliable test results so businesses like yours can make prudent decisions.

Promus Diagnostics

Promus Diagnostics provides a clear PATHWAY for rapid treatment of infectious disease by empowering physicians with relevant and personalized information ensuring Antibiotic Stewardship.

Promus Diagnostics has been on the front line of Covid-19 testing, using our state-of -the-art creation, with RNA virus tests, we created our Covid -19 PCR testing and the latest qNAT (SARS-CoV-2 quantitative neutralizing antibody test) in just a few months.

Definition of Promus - latin meaning stewardship
CAP and CLIA certification logos
Lab illustration with microscope, computer, and test tubes

We make testing simple

Efficient Turnaround

Our seamless end-to-end process allows us to deliver results efficiently and accurately. Our COVID testing results can be delivered electronically within 24 to 48 hours of receipt.

Trusted Accuracy

All testing is completed in our CAP Accredited & CLIA Certified Laboratory, focused on delivering fast, accurate and reliable test results.

Paperless Process

At Promus, we use a paperless process, saving time and efficiency on both ends. We provide all the supplies and the samples are shipped directly to our location.


Promus Diagnostics is passionate about providing clinical laboratory solutions which strengthen physician practices with complimentary services and which add genuine clinical value by improving patient outcomes. We are focused on providing physicians with opportunities to improve their value while generating a healthy return for our partners and shareholders.


Promus Diagnostics consistently employs and contracts experienced laboratory professionals dedicated to delivering client services which are second to none while utilizing standardized processes and procedures designed to deliver continuity, efficiency, and client-driven solutions. We are committed to creating positive and challenging work environments that foster personal and professional growth, encourage open communication, taking initiative, teaming, constantly striving for excellence and establish a healthy work-life balance.

Exterior of Promus Diagnostics location in Southlake Texas

Connect with Promus

Promus Diagnostics is a full service lab located in Southlake, Texas providing COVID-19 testing, COVID antibody testing, and a wide range of non-COVID related tests. Schedule a testing appointment today!

Medical Practice or Business Owner?

Interested in collaborating with Promus Diagnostics for your testing needs of your medical practice or business? Contact our business services team to discuss how Promus can meet your needs.