Partner Lab Features
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August 18, 2022

Partner Lab Feature: Commonwealth Diagnostics International

Written By
Medically Reviewed by
Updated On
January 14, 2025

We are so excited to welcome Commonwealth Diagnostics International, Inc. (CDI) to Rupa Health! We had a great conversation with Drew Connors, VP of Operations at CDI, to learn more about the company and the tests they offer. 

Introducing Commonwealth Diagnostics International (CDI)

Hi, Drew! I am excited to chat with you today. To start, can you tell me how CDI came to be? 

At 24, Craig Strasnick started his first company, Commonwealth Laboratories LLC, with just three employees. After successfully growing the company's workforce to more than 100 employees in their Massachusetts facility, with operations expanded throughout the U.S. and abroad, he sold the company to one of the largest pharmaceutical companies in 2015. He then co-founded Commonwealth Diagnostics International (CDI) to continue his entrepreneurial journey to improve diagnostics and support the well-being of patients experiencing gastrointestinal discomfort. Since its inception in the U.S., CDI has successfully expanded its diagnostic services internationally with strategic partnerships and now works with some of the preeminent health systems in the world.

That’s fantastic! Can you tell me a little more about the focus of CDI?

CDI helps providers identify and understand common sources of digestive discomfort and functional gastrointestinal issues with our non-invasive and cost-effective portfolio of at-home functional GI diagnostic products and solutions. Our tests may help in understanding various gastrointestinal conditions, including SIBO, IMO, IBS, and carbohydrate malabsorption.

Amazing! What are CDI’s most commonly ordered tests? 

The most commonly ordered tests are the SIBO/IMO Lactulose (or Glucose) Breath Test and the Lactose Malabsorption Breath Test. These tests can aid in understanding small intestinal bacterial overgrowth (SIBO), intestinal methanogen overgrowth (IMO), and lactose malabsorption.

What kind of technology do you use to analyze these tests? 

CDI operates out of our state-of-the-art CLIA-certified laboratory located in Salem, Massachusetts. Our functional GI diagnostic lab ensures sample intake efficiency, analytical accuracy, quality assurance, and expedited result turnaround time. Working with one of the premier manufacturers in the gas chromatography (GC) market, CDI has developed an optimal combination of custom component parts, the use of a two-detector system, and specific method parameters to make our instruments more accurate, precise, and sensitive in detecting all three gases of interest in breath testing: hydrogen (H2), methane (CH4), and carbon dioxide (CO2).

Incredible! Is there anything else you would like to share about CDI?

CDI’s goal has always been to make a change and create something of value for millions of people experiencing gastrointestinal discomfort. Our diagnostic technologies have impacted thousands of healthcare providers and contributed to the quality of life for many patients. CDI strives to bring to market the necessary tools to give every provider the clinical data they and their patients desire. We are committed to delivering our services in the most convenient, customer-centric, and effective manner possible.   

Wow! What a great way to end the conversation. We appreciate you taking the time to speak with us, and we look forward to growing our partnership with CDI.

To learn more about the tests offered by CDI, visit the Rupa Health Lab Test Catalog. From here, you can view more details on the tests. If you're a Rupa Practitioner, you can also view the cost of the tests.

Not yet a Rupa Practitioner? It’s free to sign up HERE!

The information in this article is designed for educational purposes only and is not intended to be a substitute for informed medical advice or care. This information should not be used to diagnose or treat any health problems or illnesses without consulting a doctor. Consult with a health care practitioner before relying on any information in this article or on this website.

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