Meet Your Care Team

Dr. Greer has dedicated his career to transforming healthcare from reactive treatment to proactive health optimization. As one of Arizona's top longevity doctors, he specializes in preventative medicine and working with patients to extend both their lifespan and healthspan.

Not surprisingly, as a former Green Beret, Special Forces Flight Surgeon, and Internal Medicine Physician, he has a mission-first mindset and a commitment to resilience and performance.

After experiencing the shortcomings of traditional healthcare, he founded Preamble to bring a different approach to individuals. One that focuses on personalized, data-driven strategies that empower people to take control of their health and longevity.

Torrey Foster has built his career around outpatient sports medicine and orthopedic rehabilitation. As a physical therapist, board-certified orthopedic specialist, and certified strength and conditioning specialist, he combines expertise in movement science, biomechanics, and sports rehabilitation to optimize performance, recovery, and injury prevention.

A former multisport high school and collegiate athlete, Torrey brings both clinical expertise and firsthand athletic experience to his work. He has extensive experience treating and training athletes across a broad range of sports and competitive levels, from recreational participants to elite performers.

He is recognized for his leadership in developing and implementing progressive, evidence-based return-to-sport programs that help athletes safely regain confidence and return to peak performance.

His expertise in human movement extends beyond athletics into workplace health and injury prevention. Through innovative partnerships with employers, Torrey has designed musculoskeletal health programs that improve employee well-being, reduce injury risk, and enhance productivity — delivering measurable value by lowering healthcare costs, minimizing lost work time, and promoting long-term musculoskeletal health.