Clinical Staff


Julie McAllister, MSPT
Physical Therapist

Julie grew up in Eugene, Oregon, and did her undergraduate studies at Lewis and Clark College in Portland, where she received a BS in Psychology in 1987. She did her physical therapy training at Boston University, and graduated with a Master’s degree in 1991. Since that time, Julie has been practicing physical therapy in the outpatient orthopedic setting in East Portland. Julie has a long standing relationship with the Cascade Athletic Club.
In addition to providing traditional outpatient physical therapy services, Julie enjoys seeing a wide variety of patients and focuses on patient education and self care training. Her clinical focus is orthopedics. She specializes in lumbar stabilization training, running injuries, and knee and shoulder taping techniques and is well educated in a variety of manual therapy techniques. Julie plays on a women’s soccer team, enjoys trail running, reading and traveling with her husband and two sons.

Tom Provenzano, MPT 
Physical Therapist

Tom is a seasoned physical therapist with over 20 years of experience in the field. Tom received his Master's degree in Physical Therapy from the University of Puget Sound, and moved to Portland in 1991. Tom has worked for both Providence Health and Legacy Health Systems, and has been in private practice since 2003. His clinical focus includes orthopedic and sports physical therapy, as well as spine rehabilitation, pediatric and geriatric care. Tom is also well versed in a variety of manual therapy techniques, including hand rehabilitation. As a goal-oriented physical therapist, Tom provides a balance of both patient and clinician input in order to achieve optimal results. Tom is absolutely committed to providing caring, focused, and individualized care for all his patients.

Mariel Hammond, DPT 
Physical Therapist

Mariel graduated from the Doctorate of Physical Therapy Program at Duke University in 2017 and joined the team at Two Rivers and Cascade 205 shortly after. Originally from Florida, Mariel is new to the West Coast, making the Portland area her first big move across the country. As an advocate for functional exercise Mariel has a lot of interest in Functional Movement Systems and plans to develop her skills in that area for a total body approach to rehab. When not working as a physical therapist she spends most of her time playing competitive ultimate Frisbee for the local elite level women’s team, Portland Schwa. She also loves to explore the outdoors with backpacking, hiking, camping, and climbing. She is currently involved in a research study examining the injury rates in the competitive ultimate Frisbee world with a former professor at Duke University and is an advocate for the most up to date evidence based practice. She has a love for genuine patient care and providing the best services to every client that becomes a patient in the Cascade 205 - Two Rivers family. 

Greg Klein, PTA
Physical Therapist Assistant

Greg graduated from the Physical Therapy Assistant Program at Mt. Hood Community College in 2009. Since then he has practiced in both inpatient hospital care and outpatient orthopedics while living in Corvallis. In September of 2014, he moved back to Portland and joined the team at Cascade 205. 
A former field biologist and environmental consultant, Greg came to Physical Therapy later in life pursuing an interest in the mechanics of the human body and a desire to work with people. Outside of work, he spends a fair amount of time exploring the outdoors via mountain biking, hiking, backpacking, and skiing. In 1989, he took his first yoga class for college credit and has kept up the practice over the years, which has included teaching introductory yoga classes for at-risk youth.  He also likes to stay in tune with his lifelong love of music by playing bass in a music ensemble that explores various music styles from South America. “Playing an instrument has actually been instructive for my career in Physical Therapy. Musicians have an uphill battle against the adverse effects from repetitive strain and prolonged postures. So it’s great to be in a field that can help.”