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Tanque Verde


We believe we can do more together than we can alone. Our goal is to improve the lives of those we touch by applying current and effective treatment paradigms in a healthy, healing atmosphere, encouraging progress. We look forward to serving you!

Our Team

Lukas TvedtClinic Director - PT, DPT, OCS


Dr. Tvedt received his Bachelor of Science degree in Kinesiology with a minor in Psychology from California Polytechnic State University, in San Luis Obispo, CA. His Doctor of Physical Therapy degree was from the #1 rated Physical Therapy program in the US, at The University of Southern California in Los Angeles, CA. As a licensed physical therapist Dr. Tvedt graduated from an American Physical Therapy Association accredited Orthopaedic Clinical Residency, and has earned board certification in the specialty of orthopedics (OCS) through the American Board of Physical Therapy Specialties. He continues to be an active member of The American Physical Therapy Association and APTA’s Orthopaedic Section. While attending Cal Poly, SLO, Lukas conducted independent published research. It was on the topic of Diabetic Peripheral Neuropathy titled, “Clinical Effectiveness of Monochromatic Infrared Energy and Therapeutic Exercises on Balance, Gait, & Protective Sensation in Patients with Diabetic Peripheral Neuropathy.” He also assisted research in the Motor Behavior/Learning Lab at USC.

Dr. Tvedt continues to instruct other clinicians locally and nationally on the topics of manual therapy for the spine & sacroiliac joint, as well as the hip/lower extremity. Lukas developed an anatomy & physiology-based curriculum utilized internationally by a renowned Pilates organization for certification of its instructors. He currently serves as a clinical mentor within an APTA accredited orthopedic residency for licensed physical therapists seeking advanced clinical practice with Team Movement for Life, & The University of Southern California.  Dr. Tvedt has over 10 years of clinical experience in the outpatient realm, and is the clinic director of Athlon Physical Therapy at Ft. Lowell treating athletes ranging from weekend warriors to Major League Baseball, Mixed Martial Arts, ballet dancers, golfers, football, tennis and volleyball players. He holds an adjunct faculty position with Northern Arizona University’s Department of Physical Therapy & Athletic Training. He also sits on the Clinical Advisory Board for NAU’s entry-level Doctor of Physical Therapy (DPT) program, which is in place to further support their mission and continue efforts to enhance clinical education for tomorrow’s leading clinicians.

Outside the clinic, Lukas serves to raise money for local charities as a member of the Fiesta Bowl Committee, and as a charter member of the Nova Home Loans Arizona Bowl Committee. Dr. Tvedt was honored in 2016 with the Tucson Hispanic Chamber’s Top 40 Under 40 distinction for professionals serving the greater Tucson region. Lukas and his wife Mandy, along with their three sons Miles, Nolan, and Wyatt, enjoy traveling, and spending time with family and friends. 

Doctor of Physical Therapy
University of Southern California

Bachelor of Science, Kinesiology with a minor in Psychology
California Polytechnic State University 

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Abby BirdPT, DPT


Abby received her Bachelor of Science in Exercise Science with a minor in Nutrition from The Ohio State University in 2011. It was at The Ohio State University where she developed a passion for physical therapy, as well as, strength and conditioning while performing fitness testing on the general population as well as the local police and firefighters.

After working as physical therapy aide for 1 year, Abby attended the University of Colorado in Denver to earn her Doctorate in Physical Therapy in 2015.

Abby believes that physical therapy is an interactive relationship between the therapist and the patient. She strives to create individually tailored programs for each patient with an emphasis on empowering the patient to become better at his or her own care. She has a particular interest in working with lifters and the weekend warriors, and is currently pursuing her Certified Strength and Conditioning Specialist. In her free time, Abby enjoys being outdoors hiking, cycling, or simply relaxing at the pool.


University of Colorado, Denver, Colorado
Doctor of Physical Therapy, May 2015

The Ohio State University, Columbus, Ohio
Bachelor of Science, Exercise Science, August 2011

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Kevin DerrickPTA


Kevin was born in El Paso, Texas and raised in Tucson, Arizona. He became interested in physical therapy through his interest in injury prevention in martial arts. While working towards a degree in mechanical engineering he felt a career in physical therapy would be more suited for him based on his personal skills and love for exercise. In November of 2015 he became a licensed PTA and began working. Kevin is in constant pursuit of knowledge and is excited to learn and grow with the Movement for Life team. In his free time he enjoys practicing and competing in Brazilian jiu jitsu, the outdoors, and spending time with family.


Pima Medical Institute, Tucson, Arizona
Associates Degree in Physical Therapist Assisting, November 2015

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Kristine EstradaPTA


Kristy went to school at the University of Alaska Anchorage, being one of twelve selected into their competitive Physical Therapist Assistant program. It was during her clinical rotations that she found her passion for manual techniques and rehabilitating patients with orthopedic pathologies. It is her desire to enrich the community by helping people achieve their optimum health through physical therapy. Kristy grew up as a military brat and has travelled to all 50 states as well as 6 different countries. She and her husband met right out of high school in Tucson, AZ and left for 13yrs for his military career. They recently moved back to make Tucson their forever home with their 3 children. Kristy has been a competitive runner and athlete from a young age and currently enjoys cycling, running and triathlons. She loves everything outdoors, sunny and warm! 

University of Alaska Anchorage
Associate of Applied Science in Physical Therapist Assistant, Magna Cum Laude, December 2018

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Samantha BettenhausenPTA


Bio coming soon!

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Diana DohertyFront Office Manager


Moved from Louisiana in 1998. Fell in love with the many outdoor activities Tucson had to offer and decided to make it home. My biggest joys in life are spending time with my family and watching sports; especially the Dallas Cowboys! I previously was an office manager for Debra Walter, M.D. for 19 years. My most rewarding experience came from being a part of the patients’ care. Each one became like family to me and knew that whatever needs they had, I would go above and beyond to help. In my spare time, I also enjoy photography, reading, and cooking.

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