Matt Lashey is an American health‑tech entrepreneur and executive, best known as the long‑term partner of American diplomat Richard Grenell. Lashey is the co‑founder and CEO of Treatment Technologies & Insights (TTI), a health technology company that develops digital tools to support patients undergoing chemotherapy and other chronic treatments. His work in developing patient‑reported outcome technology has drawn public attention, especially in connection with Grenell’s health journey. (John Shufeldt, MD)
Early life and background
Details about Lashey’s early life, including his date of birth and upbringing, are not widely published. He holds an MBA from Columbia Business School and began his career in market research, data analysis, and strategic insights roles before founding his own health‑tech ventures. (John Shufeldt, MD)
Career
Lashey began his professional life in roles related to research and strategic insights for media and consulting firms. Before founding TTI, he held senior positions including:
- Vice President of Strategic Insights and Business Leadership at Maddock Douglas, an innovation consulting firm.
- Senior Vice President of Primary Research at Discovery Networks.
- Vice President of Strategic Insights for Lifetime Networks and A&E Television. (John Shufeldt, MD)
Drawing on his background in data and analytics, Lashey co‑founded Treatment Technologies & Insights (TTI) where he serves as CEO. The company’s flagship product, chemoWave, is a mobile application designed to capture and analyze patient‑reported outcomes during chemotherapy, helping patients and caregivers track symptoms, medications, side effects, diet, hydration, and activity levels. The insights generated aim to improve communication with care teams and optimize treatment experiences. (John Shufeldt, MD)
chemoWave and Wave Health
The initial inspiration for chemoWave came from Lashey’s personal experience when his partner, Richard Grenell, was diagnosed with non‑Hodgkin’s lymphoma. Lashey began tracking Grenell’s treatment side effects and medication responses, which inspired the creation of a digital platform to help other patients gain better insight into their own care. Later, the company expanded its offerings with the Wave Health app, focused on broader chronic illness management. (Wave Health)
Public appearances and advocacy
While Lashey tends to keep a relatively private profile, he has participated in health‑care and patient advocacy events, speaking on topics related to patient‑reported outcomes and the value of digital tools in improving cancer care experiences. (Hirshberg Foundation)
Personal life
Lashey is widely known in public discourse as the long‑term partner of Richard Grenell, the American diplomat who has served in roles such as U.S. Ambassador to Germany and acting Director of National Intelligence. The couple has been together for more than two decades and has appeared together at diplomatic and public events. Their partnership became more public as Grenell navigated his cancer diagnosis and treatment in 2013, during which Lashey supported him closely. (PinkNews)
The couple has maintained a private personal life; there are no public records of children or marriage, and Lashey’s detailed personal background remains limited in publicly verifiable sources.
Public profile
Lashey maintains a presence on social media under the handle @mattlashey, where he shares updates about his work with chemoWave and related projects. (X (formerly Twitter))
