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InSource Diagnostics, a lab built by Scientists

InSource Diagnostics was founded by three scientists with a passion for reimagining the role of clinical diagnostic testing in healthcare. We are a privately held and funded company that heavily reinvests in R&D. We are constantly implementing new technologies to broaden our array of tests, simplify sample collection, improve accuracy and streamline workflow to reduce errors.

Founded by Scientists

Our story began consulting globally for clinical laboratories and hospitals while working at a leading scientific instrumentation company. Funny as it may sound, most laboratories were funded by venture capitalists or businessmen who were more interested in generating profit than improving patient care. Many times our solutions to improve quality fell on deaf ears because it had a negative impact on the bottom line.

We knew patients deserved better, and that belief drove us to start a lab focused on great science rather than lining our pockets. To remain independent, we convinced our wives to risk our entire life savings and purchase the first pieces of equipment to pursue our vision. We had to overcome many obstacles, but we have stayed true to our commitment, by continually reinvesting to drive innovation that delivers new solutions to improving patient’s lives.

We would like to invite you to learn more about what makes us… well, us.


In addition to our Clinical Laboratory Improvement Amendments (CLIA) certification, InSource Diagnostics is accredited by the College of American Pathologists (CAP) for meeting the highest clinical laboratory standard in quality, operations, accuracy, consistency, and patient well-being. Our Sensieva Droplet Vitamin D test is voluntarily certified and standardized through the Centers for Disease Control (CDC) Vitamin D Standardization Program, making us one of the few labs in the world to receive this certification. Our unwavering commitment to quality, compliance, service, and scientific innovation elevates InSource Diagnostics to a new standard in patient care.

Featured Services

Sensieva SPHERE Clinical Research Firefly Medication Monitoring

Changing the World. One Test at a Time.

Contact Us

231 W. Chestnut Ave. Monrovia, CA 91016
Office: (626) 386-5277 | Fax: (888) 677-7748 |

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