Staff – Yelm

Sean Sipe, PT, DPT, SCS
Co-Owner

Sean is a lifelong Washington State native. He was born and raised in the Spokane area and has resided in Thurston County for over 10 years. He graduated from Eastern Washington University in 1996 with a degree in Human Biology and was accepted into EWU’s Physical Therapy program. He was awarded his Master’s Degree in Physical Therapy in 1998.

Shortly after graduating, Sean began working as a Staff Physical Therapist at a private practice in Aberdeen. He soon began managing that practice. Eventually he moved to Olympia with the goal of starting a new practice.

In 2002, Sean co-founded what was to become South Sound Physical & Hand Therapy. Over the course of 6 years, through a combination of start-ups and acquisitions, he grew the company to 5 locations. Sean sold his interest in South Sound Physical & Hand Therapy in early 2011 to pursue other projects, including consulting and new clinic development.

Early in 2012, Sean purchased Yelm Physical Therapy and began managing that practice. Sean also completed his Doctorate in Physical Therapy in August, 2012 in Executive Management from the EIM Institute based in Louisville, KY. He became co-founder of Centralia Physical Therapy which launched in September, 2012.

Sean’s wife, Christina, is a Pediatric Physical Therapist and they have three children. He is an avid golfer and enjoys keeping up on his reading.

Lucas Christensen, PT, DPT, COMT, CSCS
Physical Therapist
Clinic Director/Group Director/Co-Owner

Lucas was raised in the small town of Matlock, WA. He completed his undergraduate studies at Washington State University, earning a Bachelor of Science Degree in Kinesiology. In 2014, he graduated with his Doctor of Physical Therapy from University of Washington. Lucas and his wife, Suzanne, then moved to Gilbert, Arizona so she could pursue her education in Occupational Therapy. In Gilbert, Lucas practiced for 3 years in a local outpatient orthopedic clinic working his way up from a staff Physical Therapist to Clinic Director for one of the company’s new clinics. He managed that clinic for over a year prior to relocating back to Washington after the birth of his daughter Ella.

Lucas is a Certified Strength and Conditioning Specialist since 2015. He completed 2 years of continued training and education to become a Certified Orthopedic Manual Therapist in 2018. Lucas believes in treating each person with the most appropriate and tailored interventions focusing on both active exercises and manual therapy to promote healing and restoration of function.

Outside of his career, Lucas enjoys spending as much time with his wife and daughter along with camping, road trips, hiking, hunting and fishing.

Joanna M. Lopez, DPT, CLT
Physical Therapist

Joanna grew up in Western New York. She completed all her undergraduate and graduate level education at Daemen College; obtaining her Bachelors of Natural Science in 2003 and her Doctorate in Physical Therapy in 2004. She has attained her certification to be a Certified Lymphedema in 2010. As of 2015, she also became a Certified Clinical Instructor through the American Physical Therapy Association. Joanna has completed Level 1 Graston training for Instrument Assisted Soft Tissue Mobilization and will complete the full training by Winter 2018. Joanna has worked in a variety of settings in multiple states prior to moving to Washington.

Joanna is interested in treating a variety of patients with conditions including orthopedic, neurological, vestibular, urinary incontinence, lymphedema, and women’s health. Her treatment philosophy is focused on the whole person using behavior modification, manual therapy techniques, and incorporating an effective exercise program. This philosophy also highlights patient education to enable the patient to participate in the recovery process.

Joelle Ells, PTA
Physical Therapist Assistant

Joelle was born in California and raised in Montana. She moved to the Pacific Northwest in 1988. She has lived in several states to include Hawaii and spent a year in Seoul, South Korea. She attended physical therapist assistant school at Green River Community College in Auburn, WA, and graduated in 2015. She enjoys hiking, running, and cycling.

Jathzeel “Jay” Olivares, PT, DPT
Physical Therapist

Jathzeel grew up in Southern California (Los Angeles area) before relocating to Washington to pursue his Doctorate of Physical Therapy at Whitworth University in Spokane, where he was part of the program’s inaugural class. Jay genuinely enjoys what he does and brings positive energy into each session, focusing on helping patients move better, build strength, and feel confident in their bodies again.

He has a strong interest in orthopedic rehabilitation and works with a wide range of patients, from those recovering from injury to individuals looking to improve overall function and performance. Jay believes in keeping rehab simple, effective, and tailored to what actually matters most to each patient.

Outside of the clinic, Jay enjoys staying active, spending time at the beach whenever he can, and hanging out with friends and family. He also enjoys exploring the Pacific Northwest and everything it has to offer.

Christina Osorio, PT, DPT
Staff Physical Therapist

Christina is originally from Southern California and completed her Doctorate of Physical Therapy at Northern Arizona University before moving to the PNW with her husband.

She values building genuine relationships with her patients and empowering them through education, goal setting, and meaningful progress in their recovery. Her approach combines evidence-based practice with compassionate care to support lasting results.

Outside of work, she enjoys salsa dancing with her husband, taking her kids on outdoor adventures, spending time with family, and fitting in knitting and crochet during quiet downtime.