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US Diagnostics Center

US Diagnostics Center is a DNA relationship testing company headquartered in Franklin, Ohio, offering at-home DNA test kits for paternity, maternity, sibling, grandparent, avuncular, and twin zygosity testing.

Last updated September 1, 2026

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Overview

US Diagnostics Center (USDC) is a DNA relationship testing company headquartered in Franklin, Ohio. Founded by Dr. Todd Lewis, USDC provides paternity, maternity, sibling, grandparent, avuncular, and twin zygosity DNA tests to individuals and families across the United States. Their tests start at $79, results come back in 2-3 business days, and every kit ships in discreet, unmarked packaging. The company offers at-home DNA test kits with painless cheek swabs, and their laboratory analyzes up to 28 genetic markers using STR profiling, delivering results with 99.99% accuracy for confirming biological relationships.

History

US Diagnostics Center (USDC) is a DNA relationship testing company headquartered in Franklin, Ohio. It was founded by Dr. Todd Lewis. The company provides paternity, maternity, sibling, grandparent, avuncular, and twin zygosity DNA tests to individuals and families across the United States. Their tests start at $79, results come back in 2-3 business days, and every kit ships in discreet, unmarked packaging. The company offers at-home DNA test kits for relationship testing. Their laboratory analyzes up to 28 genetic markers using STR profiling and delivers results with 99.99% accuracy for confirming biological relationships.

Products and positioning

  • Home Paternity Test Kit

    At-home DNA paternity test kit with 99.99%+ accuracy for confirming a biological father and 100% accuracy for exclusion. Results in 2-3 business days.

  • Home Grandparent DNA Test

    Grandparentage DNA test kit to determine whether a child is the biological grandchild of the alleged father's parent(s). Results in 2-3 business days.

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