Team Peoria
Dr. Eric Hefferon
PT, DPT
Physical Therapist, Owner
Dr. Eric Hefferon received his advanced doctorate degree in physical therapy from the innovative A.T. Still University. He has been practicing in the west valley for 11 years and has made strong ties to local gyms and medical practitioners. Dr. Hefferon started Impact Physical Therapy due to his passion for an individualized healthcare approach.
Dr. Tamara Hefferon
PT, DPT, OCS
Physical Therapist, Owner
Dr. Tamara Hefferon is a Doctor of Physical Therapy who has a strong passion instilling and empowering others to achieve optimum health, believing strongly in the mantra Exercise is Medicine. She received her undergraduate degree in Psychology from the University of Arizona, with an emphasis in exercise physiology.
Dr. Ti’Anna Bruce
PT, DPT
Physical Therapist
Ti’Anna Bruce, PT, DPT, earned her Doctor of Physical Therapy degree from Midwestern University in Glendale, Arizona. With a background in exercise science and clinical experience across outpatient orthopedics and inpatient rehabilitation, she is passionate about helping individuals move with confidence, build strength, and return to the activities they love. She takes a patient-centered approach that combines evidence-based practice, individualized care, and functional movement.
Dr. Brianna Ramsey
PT, DPT
Peoria Clinic Manager
Dr. Brianna Ramsey, PT, DPT, was born and raised in Peoria, Arizona. She received her Bachelor’s of Science in Athletic Training from Minot State University in North Dakota from 2013 to 2017.
Dr. Cassidy Elinski
PT, DPT
Physical Therapist
I was born in Phoenix, AZ and grew up in Surprise, AZ. I have 3 sisters and my parents have the cutest doggo named Kody (Nickname Kody Bear) who is an Australian shepherd. I played soccer in middle and high school with my sisters! I went to NAU for undergrad and loved living in Flagstaff for 4 years getting to try different things like snowboarding and exploring different hiking spots.
Dr. Matthew Koster
PT, DPT
Physical Therapist
Dr. Matt was born and raised in Grand Rapids, Michigan. He completed his undergraduate schooling at Calvin College (now Calvin University) earning a degree in Pre-Professional Kinesiology with a focus in Physical Therapy. Shortly following graduation, Matt explored his interest in personal training in San Francisco prior to beginning graduate studies at Franklin Pierce University in Goodyear, Arizona.
Ashley Frye
Office Manager
Ashley is our experience specialist at Impact Physical Therapy. Her passions include instructing Pure Barre, staying active, live music, and quality time with family, friends, and her dog Billy.
Melissa Dozal
Patient Care Coordinator
Melissa is originally from New Mexico but has lived in Phoenix since she was 7. She loves being a mom to Isaiah-22, Breanna-20, and Roman-9. Spending time and being intentional with family and friends is important to her.
Zakiak Perez
Patient Care Coordinator
Zakiah joined the Impact Physical Therapy team in 2026, bringing her passion for connecting people, building meaningful relationships, and strengthening community ties.
Skye Labostrie
Patient Care Coordinator
Sky has been a Patient Care Coordinator at Impact Physical Therapy in Peoria since 2025. She highly enjoys building a relationship with our patients.