Portland Clinic | Arm Dynamics

As the founder, president and senior clinical director of Arm Dynamics, John has dedicated his career to positively transforming prosthetic rehabilitation for people with upper limb loss. He innovated a model of care that places each patient at the center of a multidisciplinary team of experienced upper limb prosthetists, occupational and physical therapists, technicians and insurance reimbursement specialists. The team provides holistic patient assessments, expedited prosthetic fitting and individualized prosthetic training, enabling patients to achieve dramatic and measurable improvements in comfort, wear time and functional ability. John’s advanced socket designs for all levels of upper limb loss have allowed Arm Dynamics to leverage emerging technologies to achieve optimal patient outcomes that were not possible with previous socket designs. His expertise in upper limb prosthetics and involvement in a range of international research projects led to the company’s appointment as a sole source provider of upper limb prosthetic services at Walter Reed National Military Medical Center, 2003-2014.

John is a Distinguished Fellow of the American Academy of Orthotists and Prosthetists (FAAOP-D) and received the AAOP Clinical Creativity Award in 2017. He completed his undergraduate studies at the University of Southern California and received his prosthetics certificate from Northwestern University. He is engaged in a range of research and development initiatives with the Department of Defense, DARPA, FDA, Cleveland Clinic, and prosthetic component designers and manufacturers around the world. He is recognized internationally for his presentations and publications on innovative care techniques, interface designs, prosthetic care for military amputees, and novel outcome measure assessments for people with upper limb loss.

Mac joined Arm Dynamics in 2005, including two years of service on our team of upper limb prosthetic specialists at Walter Reed National Military Medical Center.

Mac believes in pushing the envelope to create individualized solutions that let his patients get back to doing the things they love. He is a Fellow of the American Academy of Orthotists and Prosthetists (FAAOP) and has been published in the Journal of Prosthetics and Orthotics. He graduated from Cornell University with a bachelor’s degree in mechanical and aerospace engineering and attended the orthotics and prosthetics program at California State University, Dominguez Hills.

Jamison has provided occupational therapy services in various settings, including acute care, outpatient hand and arm, inpatient rehabilitation, and skilled nursing. He believes that focused, individualized care is the key to helping patients establish independence in all aspects of their lives.

What he loves most about his work is building friendships with each patient and learning about their passions, struggles, and resiliency. Jamison graduated from Utah State University with a bachelor’s in human movements and exercise science and earned his master’s in occupational therapy at A.T. Still University.

Rob joined Arm Dynamics as an upper limb prosthetic specialist in 2005. “The most powerful moments in my work are when I get to see a patient use their prosthesis for the first time, drinking from a cup or reaching out and shaking my hand.” Rob is a Fellow of the American Academy of Orthotists & Prosthetists (FAAOP) and has been published in the Journal of Prosthetics and Orthotics.

Rob graduated from Texas A&M University with a bachelor’s degree in biomedical science and received his bachelor’s degree in prosthetics and orthotics from the University of Texas-Southwestern.

Carina has worked as an occupational therapist in a variety of settings including acute care, inpatient rehab, and outpatient settings. She believes it's essential to understand what's important to each patient, and that the prosthetist and therapist working in tandem gives patients the best opportunity to manage daily activities and regain their independence.

Carina earned her bachelor’s degree in clinical laboratory sciences from UT Southwestern Allied Health Science Center and a master’s in occupational therapy from Texas Woman’s University.

Scott began his journey as a clinician in 1994, and started with Arm Dynamics in 2011, including two years of service on our team of upper limb prosthetic specialists at Walter Reed National Military Medical Center. Scott’s goal is to be a craftsman who builds an excellent prosthesis, and an educator who helps guide patients and their families through the fitting and rehabilitation process. He graduated from the University of Texas-Southwestern with a bachelor’s degree in prosthetics and orthotics and from Texas A&M University with a bachelor’s degree in physical education.

Timothy has provided occupational therapy services in acute care and outpatient settings. He is experienced in neurorehabilitation related to stroke, traumatic brain injury, and spinal cord recovery. He understands the importance of building a good rapport with his patients, their loved ones, and his colleagues on the care team. By focusing on each patient’s unique needs and goals, he helps them achieve successful prosthetic outcomes.

Timothy earned a bachelor’s in kinesiology from Texas Tech University and a master’s in occupational therapy from Abilene Christian University.

Julian has been an upper limb prosthetic specialist since 2012. He is a Fellow of the American Academy of Orthotists and Prosthetists (FAAOP). Julian values the time he spends getting to know each of his patients and building a great bond as they work together and become friends. He graduated from the University of Nebraska with a bachelor’s degree in exercise science and biomechanics and completed the orthotics and prosthetics practitioner program at Century College in Minnesota.

Lauren has specialized in upper limb prosthetic rehabilitation since 2016, and previously worked as a hand therapist and a traveling occupational therapist. Lauren believes the key aspect of her work is helping her patients to increase their independence and quality of life through training and education. She also appreciates the importance of and need for clinical research in this field with such a specialized population.

To this end, Lauren is currently pursuing a PhD in Therapeutic Science through the University of Kansas Medical Center in Kansas City, KS. She graduated magna cum laude from Lenoir-Rhyne College in North Carolina with a bachelor’s degree in music education and later earned a master’s degree in occupational therapy at Rockhurst University.

Andy Sabean has worked in upper limb prosthetics since 2008. He enjoys building collaborative relationships with his patients, focusing on individualized care plans, and creating functional prosthetic solutions to help them push past their limitations. Andy graduated from the prosthetic practitioner program at Century College in Minnesota.

Becky has worked as an occupational therapist since 1997 and has facilitated work hardening programs, functional capacity evaluations, and outpatient treatment for neck, back, and shoulder pain. Her years of experience have shown that it is essential to understand each person’s strengths, challenges and potential barriers so she can help them optimize their functional ability and overall recovery.

Becky earned her bachelor’s degree in occupational therapy from the College of St. Catherine.

Portland Arm Prosthetics

Portland Arm Prosthetics

Northwest Center of Excellence

Center Team

Advanced Arm Dynamics of the Northwest, LLC

Drop us a line...

Portland Arm Prosthetics

Portland Arm Prosthetics

Northwest Center of Excellence

Center Team

Advanced Arm Dynamics of the Northwest, LLC

Drop us a line...

Ken Wagner

Shannon Batie

Cullen Hays

Lauren Rapozo

John M. Miguelez, CP, FAAOP(D)

MacJulian Lang, CPO, FAAOP

Jamison Carroll, MSOT, OTR/L

Rob Dodson, CPO, FAAOP

Carina Geraldez, MOT, OTR, CLT

Scott Spring, CP/L

Timothy Policarpio MSOT, OTR, CMOT

Julian Wells, CPO, FAAOP

Lauren Trent, MOT, OTR/L

Andy Sabean, CP/LP

Becky Park, OTR/L