Charles Zelkowski, PT, DPT

Gladwin Therapy Director

Charles is a licensed Physical Therapist and the Therapy Director in Gladwin. He earned his Bachelor of Science in Therapeutic Recreation from Central Michigan University in 2010, followed by a Doctorate of Physical Therapy in 2013. A lifelong resident of the Mid-Michigan area, Charles is proud to serve the community he calls home.
He is an active member of both the Michigan Physical Therapy Association and the American Physical Therapy Association. Charles is passionate about delivering comprehensive care in a rural setting and is deeply committed to helping patients achieve their rehabilitation goals through personalized, evidence-based treatment. His clinical strengths include orthopedics, vertigo management, geriatric care, balance training, and sports medicine.
Charles resides in Harrison with his wife and their three children. Outside of work, he enjoys spending time with his family and sharing new experiences with them. His personal interests include golfing, fishing, hunting, hiking, kayaking, and camping—activities that reflect his love for the outdoors and active lifestyle.
“Working for Evergreen allows me to be a part of my community. People view their PT sessions as more than another medical appointment. They see it as a visit with friends and neighbors, and they know they are going to be valued as an individual and not just a number.” – Charles Z.

Mitchell Millar, PT, DPT, ATC, CSCS

Director Midland

Mitchell Millar is a licensed Physical Therapist and the Therapy Director at Evergreen Physical Therapy in Midland, Michigan. He earned his Doctorate of Physical Therapy from Emory & Henry College and holds a Bachelor of Science in Athletic Training from Central Michigan University. Mitchell is also a Certified Strength and Conditioning Specialist and certified in Dry Needling, enhancing his ability to both create treatment plans to improve general function and treat musculoskeletal conditions with precision and effectiveness. He is greatly involved in the Michigan Chapter of American Physical Therapy Association where he helps to both promote and advance the profession of physical therapy on a state level.

With a strong foundation in general orthopedics and sports medicine, Mitchell brings a dynamic blend of clinical expertise and athletic training experience to his practice. He has worked extensively with athletes across all levels, helping them recover from injuries and optimize performance. He enjoys working with all age groups

Originally from Elk Rapids, Michigan, Mitchell is passionate about living an active lifestyle. Outside of the clinic, he enjoys hiking, kayaking, lifting weights, cooking, and spending quality time with his wife, daughter, dog, and friends.

Rachel Strauss, PTA

Physical Therapist Assistant

Rachel is a skilled Physical Therapist Assistant and proud graduate of Delta College, with a clinical focus in orthopedic and sports medicine. She provides compassionate care to patients of all ages, with a special interest in working with the older adult population. In addition to her role at Evergreen, Rachel also treats patients in a skilled nursing setting, where she brings empathy, patience, and expertise to help individuals regain mobility and independence.

Rachel lives in Bay City with her husband and son. Outside of work, she enjoys playing golf, fishing with her husband, spending quality time with her son, and taking walks with the family dog. Her love for the outdoors and active lifestyle reflects the same energy and dedication she brings to her professional practice.

Rebecca Pider, PTA

Physical Therapist Assistant

Rebecca is a dedicated Physical Therapist Assistant with over 20 years of experience in patient care. A proud graduate of Baker College, she began her journey with Evergreen in the spring of 2006 and has since contributed her expertise across multiple clinics within the organization. Rebecca is passionate about working with a diverse range of patient diagnoses, bringing empathy, adaptability, and clinical skill to every interaction.
Outside of her professional life, Rebecca finds joy in supporting her three sons at their hockey and lacrosse games. She enjoys spending time in nature, gardening, and embracing new challenges through learning and hands-on activities. Rebecca lives in Midland, Michigan with her husband and children, where they share a love for the outdoors and community life.

Tiffany Kelly is the friendly Patient Care Coordinator at Evergreen Physical Therapy in Midland. Tiffany originally is from Midland and attended Midland High School. She is avid fan of the Detroit Tigers and Detroit Lions. She loves volunteering when able within the community. Tiffany enjoys animals very much. She has Dogs, A cat, fish and her newest adventure, Chickens! When not working, Tiffany enjoys cooking, sewing and DIY projects, summers at the lake, fun in the sun and spending time with her Husband, Family and friends.

Midland Location

Tiffany Kelly

Patient Care Coordinator

Tiffany serves as the welcoming and compassionate Patient Care Coordinator at Evergreen Physical Therapy of Midland. A proud Midland native and graduate of Midland High School, Tiffany brings a deep sense of community and dedication to her role, ensuring every patient feels supported and cared for from the moment they walk through the door.
Outside of work, Tiffany is an enthusiastic supporter of the Detroit Tigers and Detroit Lions. She is passionate about giving back and frequently volunteers within the local community. A devoted animal lover, Tiffany shares her home with her dogs, a cat, and fish.
In her free time, she enjoys reading, cooking, sewing, and tackling DIY projects. Summers are often spent at the lake, soaking up the sun and making memories with her husband, family, and friends.