Callie Hollenshead, MD
Founder, Harley Street Health
Dallas, TX
About Callie Hollenshead.
Dr. Callie Hollenshead founded Harley Street Health in Dallas and built it around an integrated approach to lifestyle and longevity medicine inside the concierge framework. The practice's work on metabolic health, hormone optimization, and preventive screening protocols has positioned it as one of the leading PPA member practices in the longevity-medicine track.
Dr. Hollenshead joined the Board to bring the longevity and integrative-medicine perspective to the alliance's strategic conversation. The space is moving fast — both clinically and commercially — and PPA's editorial and programming work on longevity has been shaped substantially by her input on what's substantive and what's marketing.
Inside the alliance, she leads the longevity-medicine track at the Annual Meeting and is a regular voice on the Afternoon Report when the week's topic involves preventive screening, hormone therapy, or the broader category of lifestyle-medicine interventions in a membership practice. Her Knowledge Center piece on the WHI legacy and the case for revisiting hormone therapy guidelines is one of the most-read articles in the archive.
She represents the cohort of PPA members whose practices have evolved beyond standard concierge primary care into a more comprehensive lifestyle-medicine offering. Members tell us her perspective is what made the alliance relevant for practices that don't fit cleanly into the traditional concierge or DPC categories.
