About Terri

A smiling blonde woman wearing a black turtleneck sweater, standing against a dark backdrop.

Terri McCormick, BCN, BCLS is an author, speaker, educator, mentor, and advocate for families affected by Lyme disease. When two of her four children spent years suffering from misdiagnoses, she immersed herself in learning by attending seminars, reading widely, and seeking every resource she could find.

That pursuit led Terri to earn board certifications in holistic health and as a Lyme disease specialist. Today, she shares what she has learned by guiding families through the challenges of Lyme and serving as an ILADS Ambassador and Illinois State Co-Leader for the Center for Lyme Action.

Terri lives in Geneva, Illinois, with her husband, Steven, and their white lab, Finn.

For more from Terri you can find her writing at LymeDisease.org!

  • "Terri’s steady presence and guidance gave me hope during a time when I felt invisible and misunderstood."

    — John T.

  • "Terri made me feel validated and heard when no one else would listen… Her support reminded me I was not alone."

    — Alex Sevo

  • "It was Terri who suggested I get tested for Lyme disease—and that was the turning point… Without her, I would still be searching."

    —Deanna S.

Interested in working together or having Terri speak?

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