Clinical Team

John Miguelez, CP, FAAOP
President and Senior Clinical Director
jmiguelez@armdynamics.comWatch Video Interview
John Miguelez, president and senior clinical director, founded Advanced Arm Dynamics (AAD) in 1998. His vision was to provide the highest level of comprehensive upper extremity prosthetic rehabilitation, incorporating advanced technologies and techniques.He has built a nationwide multidisciplinary team of prosthetists, technicians, occupational therapists, case managers and licensed counselors, practicing at AAD's Centers of Excellence across the country.
Mr. Miguelez is engaged in international research and development initiatives with leading upper extremity component manufacturers on education, component design, refinement and beta testing. He has published numerous articles in the Journal of Prosthetics and Orthotics and the Atlas of Amputations and Limb Deficiencies, and is an international lecturer.
In 2003, Mr. Miguelez was asked by the U.S. Department of Defense to establish and lead a team of upper extremity prosthetists at Walter Reed Army Medical Center to provide care to American soldiers injured in Iraq and Afghanistan. A team of Advanced Arm Dynamics' senior clinicians remains on-site at the renamed Walter Reed National Military Medical Center as the sole providers of upper extremity prosthetic care.
Formerly, Mr. Miguelez was the vice president and senior clinical director of the Upper Extremity Prosthetic Program at NovaCare, Inc., now Hanger Prosthetics & Orthotics. After founding the program in 1991, he successfully led 28 regional upper extremity prosthetic specialists, the Upper Extremity Research and Fabrication Center, and a national team responsible for patient coordination and insurance justification serving 3,000 patients a year.
Mr. Miguelez attended the University of Southern California and received his prosthetics certificate from Northwestern University. He is an American Board for Certification certified prosthetist. He is also certified by all leading component manufacturers for upper-extremity prosthetics, and has served as a clinical instructor for Motion Control and Liberating Technologies.
Mr. Miguelez is a Fellow of the American Academy of Orthotists & Prosthetists(FAAOP) and the former Chair of the AAOP Upper-Limb Prosthetics Society. He is also a member of the board of directors for the International Society for Prosthetics and Orthotics.

Dan Conyers, CPO, FAAOP
National Clinical Director
dconyers@armdynamics.comWatch Video Interview
Dan Conyers, national clinical director, supervises a nationwide team of prosthetists at Advanced Arm Dynamics’ (AAD) Centers of Excellence. Under his direction, the centers are unified in a common mission of providing superior upper extremity prosthetic rehabilitation and personalized patient care.
Mr. Conyers has more than 28 years of experience in prosthetics and orthotics, and has been an upper extremity specialist for 16 years. He is involved in international research and development projects, design consulting and beta testing with scientific groups, component manufacturers and individual researchers.
He is a key member of AAD's team of upper extremity specialists at Walter Reed National Military Medical Center, providing prosthetic care for American soldiers injured in Iraq and Afghanistan. He also spent nine years as a practice manager and northwest regional upper extremity specialist with Hanger Prosthetics & Orthotics, and eight years with Orthotic Prosthetic Services, Inc. in Oregon.
Mr. Conyers attended Minnesota's innovative 916 Area Vocational Technical Institute in affiliation with the University of Minnesota-Department of Orthopedic Surgery. He received certificates for Prosthetic Practitioner and Orthotic Practitioner, completed residencies for both disciplines, and is an American Board for Certification certified prosthetist/orthotist. He has received additional training in advanced upper extremity applications from all leading component manufacturers.
Mr. Conyers is a Fellow of the American Academy of Orthotists & Prosthetists(FAAOP) and a member of the AAOP Upper-Limb Prosthetics Society. He has published articles in the Textbooks of Military Medicine and the Journal of Prosthetics and Orthotics, and presented at numerous symposiums.

Rob Dodson, CPO
Clinical Manager
Southwest Center of Excellence
Dallas, Texas
rdodson@armdynamics.comWatch Video Interview
Rob Dodson, CPO, is the clinical manager of Advanced Arm Dynamics' (AAD) Southwest Center of Excellence in Dallas, Texas. He joined AAD in 2005.
Previously, Mr. Dodson was a prosthetist /orthotist at the Center for Independent Rehabilitative Services in San Jose, California. In that capacity, he was affiliated with Stanford University Hospital and Santa Clara Valley Medical Center, a nationally renowned spinal cord rehabilitation and trauma center.
He received a Bachelor of Science in Biomedical Science from Texas A&M University and a Bachelor of Science in Prosthetics and Orthotics from the University of Texas Southwestern School of Allied Health Sciences. He completed a prosthetic residency at Southern Illinois University School of Medicine, and prosthetic and orthotic rotations with the Scottish Rite Hospital and Hanger Prosthetics & Orthotics.
Mr. Dodson has been published in the Journal Prosthetics and Orthotics. He is an American Board for Certification certified prosthetist/orthotist and is a member of the American Academy of Orthotists and Prosthetists (AAOP) and the AAOP Upper-Limb Prosthetics Society.

MacJulian Lang, CPO, FAAOP
Clinical Director
Northwest Center of Excellence
Portland, Oregon
mlang@armdynamics.comWatch Video Interview
MacJulian Lang, CPO, is the clinical director of Advanced Arm Dynamics’ (AAD) Northwest Center of Excellence in Portland, Oregon.
Mr. Lang has been practicing upper extremity prosthetics since 2000. He joined the AAD team at Walter Reed Army Medical Center in 2006 as an upper extremity specialist. He became clinical director at the Northwest Center of Excellence in 2008.
He received a Bachelor of Science in Mechanical and Aerospace Engineering from Cornell University and attended the orthotics and prosthetics program at California State University, Dominguez Hills. He completed residencies in prosthetics and orthotics.
Mr. Lang has published articles in the Journal of Prosthetics and Orthotics and co-authored a chapter on upper extremity prosthetic care in the Care of the Combat Amputee, a medical textbook. He has also presented at in-services, conferences and symposiums on prosthetic research and techniques. He is an American Board for Certification certified prosthetist/orthotist, and is a member of the American Academy of Orthotists and Prosthetists (AAOP), the AAOP Upper-Limb Prosthetics Society and the International Society for Prosthetics and Orthotics.

Patrick Prigge, CP, FAAOP
Clinical Manager
North Central Center of Excellence - Minneapolis, Minnesota
pprigge@armdynamics.comWatch Video Interview
Patrick Prigge, CP, FAAOP, is the clinical manager of Advanced Arm Dynamics’ (AAD) at the North Central Center of Excellence in Minneapolis, Minnesota. He has been an upper extremity specialist with AAD since July 2008.
Previously, Mr. Prigge was the director of prosthetics education for Otto Bock HealthCare in Minneapolis. In that capacity he developed and led a team of prosthetists and occupational therapists in providing education to practitioners and patients on how to improve the use of advanced prosthetic technologies. He was also involved with Otto Bock product development. Mr. Prigge has also worked as a clinical prosthetist with Hanger Prosthetics & Orthotics and at Gillette Children’s Hospital.
He received a postgraduate certificate as a prosthetic technician and practitioner from Century College in Minnesota and earned a Bachelor of Arts in Biomedical Science from St. Cloud State University.
Mr. Prigge is an American Board for Certification certified prosthetist, a member of the American Academy of Orthotists and Prosthetists (AAOP) and an officer with the AAOP Upper-Limb Prosthetics Society.

Ryan Spill, CP
Clinical Manager
Northeast Center of Excellence
Philadelphia, Pennsylvania
rspill@armdynamics.comWatch Video Interview
Ryan Spill, CP, is the clinical manager of Advanced Arm Dynamics’ (AAD) Northeast Center of Excellence in Philadelphia, Pennsylvania.
Mr. Spill joined the AAD team at Walter Reed Army Medical Center in 2007 as an upper extremity specialist. He became clinical manager of the Northeast Center of Excellence in 2010.
Previously, Mr. Spill was a clinical representative for Motion Control Inc., training prosthetists worldwide in externally powered fitting techniques.
He received a prosthetic certificate from California State University, Dominguez Hills and a Bachelor of Science in Health Sciences from Lock Haven University in Pennsylvania.
Mr. Spill is an American Board for Certification certified prosthetist. He has presented at national and international symposiums on upper limb prosthetics.

Scott Spring, CP
Clinical Prosthetist
Advanced Arm Dynamics' Team at Walter Reed National Military Medical Center
Washington, D.C
sspring@armdynamics.comWatch Video Interview
Scott Spring, CP, joined the Advanced Arm Dynamics team at Walter Reed National Military Medical Center in Washington, D.C., in February 2011. He provides upper extremity prosthetic services and rehabilitation to American soldiers injured in Iraq and Afghanistan.
Previously, Mr. Spring was the director of prosthetics at Dynamic Orthotics and Prosthetics (now Hanger) in Houston, Texas. He was also a senior prosthetist at Muilenberg Prosthetics in Houston, and a senior prosthetist/orthotist at Central Texas Orthotics and Prosthetics in Bryan, Texas.
He received a Bachelor of Science in Prosthetics and Orthotics at the University of Texas Southwestern School of Allied Health Sciences and a Bachelor of Science in Physical Education at Texas A & M University. Mr. Spring is an American Board for Certification certified prosthetist and a member of the American Academy of Orthotists & Prosthetists.

Jamie Vandersea, CPO
Clinical Manager
Advanced Arm Dynamics' Team at Walter Reed National Military Medical Center
Washington, D.C.
jvandersea@armdynamics.comWatch Video Interview
Jamie Vandersea, CPO, is the clinical manager of the Advanced Arm Dynamics' (AAD) team at Walter Reed National Military Medical Center (WRNMMC) in Washington, D.C. He provides upper extremity prosthetic services and rehabilitation to American soldiers injured in Iraq and Afghanistan.
Mr. Vandersea joined AAD as a clinical specialist in 2008. He began working with the team at WRNMMC in 2009, and in 2010, was promoted to clinical manager.
Previously, Mr. Vandersea was a prosthetist at Maine Prosthetics and Orthotics. He also spent several years as a specialist with the NovaCare/Hanger Upper Extremity Prosthetic Program in California, and began his career as a prosthetist at Helen Hayes Hospital for rehabilitation in New York.
He received a Bachelor of Science in prosthetics and orthotics from New York University. He has also completed extensive, in-depth education on specific upper extremity components and techniques.
Mr. Vandersea is an American Board for Certification certified prosthetist/orthotist.

Julian Wells, CPO
Clinical Manager
Midwest Center of Excellence
Waterloo, Iowa
jwells@armdynamics.comWatch Video Interview
Previously, Mr. Wells spent several years at Nebraska Orthotic & Prosthetic Services in Omaha, and worked there an additional two years after the practice was acquired by Hanger
He received a Bachelor of Science in Exercise Science from the University of Nebraska, where he focused on mechanical engineering and biomechanics. He completed the orthotics and prosthetics practitioner program at Century College in Minnesota.
Mr. Wells is an American Board for Certification certified prosthetist/orthotist.

Brian Waryck, CP
Clinical Prosthetist
Advanced Arm Dynamics' Team at Walter Reed National Military Medical Center
Washington, D.C
bwaryck@armdynamics.comWatch Video Interview
Brian Waryck, CP, joined the Advanced Arm Dynamics team at Walter Reed National Military Medical Center in Washington, D.C., in June 2010. He provides upper extremity prosthetic services and rehabilitation to American soldiers injured in Iraq and Afghanistan.
Previously, Mr. Waryck was a prosthetist and practice manager with Hanger Prosthetics & Orthotics in Cleveland, Ohio. He has also managed a clinical prosthetics and orthotics office for New England Brace Company (NEBCO), and began his career as a prosthetist with Shriners Hospitals for Children.
He received a Bachelor of Science in Mechanical Engineering at Western New England College and earned his certificate in prosthetics at the Newington Certificate Program.
Mr. Waryck is an American Board for Certification certified prosthetist and a member of the American Academy of Orthotists & Prosthetists Upper-Limb Prosthetics Society.

Tiffany Ryan, MOT, OTR/L
National Director of Therapeutic Services
tryan@armdynamics.comWatch Video Interview
Tiffany Ryan, MOT, OTR/L, national director of therapeutic services, supervises a nationwide team of therapists at Advanced Arm Dynamics’ (AAD) Centers of Excellence. Under her direction, therapeutic services are integrated into each patient's prosthetic rehabilitation process.
Mrs. Ryan was the rehabilitation coordinator at the Southwest Center of Excellence in Dallas before being promoted to a national director position. Prior to joining AAD, she spent six years at the Medical Center of Arlington, first as wellness program coordinator and lead outpatient occupational therapist, and then as manager of Occupational Health and Wellness Services. She also spent six years as a staff occupational therapist at the Zale Lipshy University Hospital in Dallas.
She received a Master of Occupational Therapy from Texas Woman’s University in Denton and a Bachelor of Arts in Exercise and Sports Studies from the University of Texas at Arlington.
Mrs. Ryan has presented at the University of New Brunswick's MEC Symposium and Trent International Prosthetics Symposium. She is a member of the American Occupational Therapy Association (AOTA), the International Society of Prosthetics and Orthotics (ISPO) and the American College of Sports Medicine (ACSM). She is also nationally certified as a strength and conditioning specialist.

Kerstin Baun, MPH, OTR/L
Rehabilitation Coordinator
Northwest Center of Excellence
Portland, Oregon
kbaun@armdynamics.comWatch Video Interview
Previously, Mrs. Baun provided occupational therapy services, including staff training and supervision in areas of sensory integration and assistive technology, for school districts in Oregon, Washington and Vermont. Earlier in her career, she spent 10 years practicing occupational therapy in hospital and home care settings.
She received a Bachelor of Science in Occupational Therapy in 1990 at the University of British Columbia. In 2008, she received a Master of Public Health at the University of North Carolina-Chapel Hill, where she was the recipient of the Delta Omega Academic Excellence Award.
Mrs. Baun is certified by the National Board for Certification in Occupational Therapy, a member of the American Occupational Therapy Association and is a licensed occupational therapist in Oregon, Washington, California and Pennsylvania.

Christopher Bollinger, MOT, OTR
Rehabilitation Coordinator
Northeast Center of Excellence
Philadelphia, Pennsylvania
cbollinger@armdynamics.comPreviously, Mr. Bollinger designed short-term and long-term therapeutic treatment plans and provided occupational therapy at multiple rehabilitation facilities in Pennsylvania. He graduated from the University of Pittsburgh where he received a Bachelor of Arts in Communication Sciences and Disorders, and a Master of Occupational Therapy. He is a member of Pi Theta Epsilon national honor society for occupational therapy students and alumni.
Mr. Bollinger is certified by the National Board for Certification in Occupational Therapy and is also a certified lymphedema therapist.

Jennifer Peterson, MA, PT
Rehabilitation Coordinator
North Central Center of Excellence
Minneapolis, Minnesota
jpeterson@armdynamics.comWatch Video Interview
Jennifer Peterson, MA, PT, joined Advanced Arm Dynamics in November 2010, as rehabilitation coordinator for the North Central Center of Excellence in Minneapolis.
Previously, Mrs. Peterson spent 17 years at Fairview-University Medical Center in Minneapolis where she worked as a staff physical therapist, a wound care physical therapist and a coordinator of clinical education. She developed the course curriculum and taught “Fundamentals of Clinical Wound Care” in the College of St. Catherine’s physical therapy program for six years. She has also presented lectures at the University of Minnesota and the Fairview Rehabilitation Services Continuing Education Program.
She graduated summa cum laude from the College of St. Scholastica in Duluth, Minnesota, where she received a Bachelor of Arts in Health Science and a Master of Arts in Physical Therapy.
Mrs. Peterson is a member of the Amputee Coalition of America (ACA), a certified Parent Peer Visitor for the ACA, and has been a contributing writer to inMotion magazine. She is on the leadership committee for the Little Fins Limb Difference Family Support Group.

Kasey Rogner, MOT, OTR
Rehabilitation Coordinator
Southwest Center of Excellence
Dallas, Texas
krogner@armdynamics.comWatch Video Interview
Ms. Rogner graduated magna cum laude from Texas Woman's University (TWU), where she received a Bachelor of Arts in Family Studies and a Master of Occupational Therapy.
She was a member of the Honor Society of Phi Kappa Phi, and was involved in the TexasVoice Project for Parkinson's disease, TWU’s Vanderkooi Lectureship, Celebration of Scholarship, and Rebuilding Together of Greater Dallas.
Ms. Rogner is certified by the National Board for Certification in Occupational Therapy and is a member of the Texas Occupational Therapy Association.

Joby Varghese, MOT, OTR
Rehabilitation Coordinator
Southwest Center of Excellence
Dallas, Texas
jvarghese@armdynamics.comPreviously, Mr. Varghese provided comprehensive inpatient and outpatient occupational therapy in a range of rehabilitation settings in Pennsylvania. He graduated cum laude from Thomas Jefferson University in Philadelphia where he received a Bachelor of Science in Occupation and Health, and a Master of Science in Occupational Therapy.
Mr. Varghese is certified by the National Board for Certification in Occupational Therapy.
