About Us
Peak Rehab was created in 2024 with the intention to provide onsite therapy services primarily in assisted living communities. As people age, there are declines in strength, balance, and mobility which can lead to increased assistance from caregivers. Peak Rehab implements skilled therapy services to improve function and prevent declines in mobility.
Why Choose Peak Rehab in Michigan?
Trusted therapists serving communities across Michigan
Specializing in senior and geriatric rehabilitation
Compassionate, engaging, resident-first philosophy
State-of-the-art therapy technologies
In-depth understanding of Michigan’s assisted and independent living dynamics
Measurable results that support long-term independence
At Peak Rehab, our mission is clear: to help seniors reach their peak—physically, emotionally, and socially. Whether recovering from an injury or simply aiming to stay strong and steady, our expert team is here to help every step of the way.
Our Team
Timothy Herek
Occupational Therapist, Owner, Peak Rehab
Timothy Herek is a licensed Occupational Therapist and accomplished graduate of the Masters of Occupational Therapy Program at Saginaw Valley State University, earned in 2016. With over 8 years of hands-on experience, Tim specializes in providing compassionate, patient-centered care for elderly individuals in a variety of settings. Throughout his career, he has worked in diverse environments, including hospitals, nursing homes, and outpatient clinics. Tim is passionate about helping his patients regain independence and improve their quality of life through personalized therapeutic interventions. With Peak Rehab in Michigan, his therapy approach is centered on understanding each patient’s unique needs and goals, ensuring they receive the most effective and empathetic care possible.
Jeff Nievierowski
Physical Therapist, Owner, Peak Rehab
Jeff Nievierowski is a licensed Physical Therapist and proud graduate of Central Michigan University’s Master of Physical Therapy program (2005). With over 15 years of hands-on experience, Jeff has dedicated his career to helping older adults regain mobility, improve safety, and live more independently. His expertise spans outpatient care, home health, skilled nursing, and assisted living—making him uniquely equipped to understand and meet the complex needs of Michigan’s senior population. At Peak Therapy, Jeff brings a compassionate, results-driven approach to every patient interaction, ensuring that care is not only clinically sound, but deeply personal.
Director of Operations
Sarah Calkins
Sarah Calkins is an accomplished healthcare professional with a Master of Science in Occupational Therapy from Saginaw Valley State University and a Bachelor's degree in Human Development and Communication Disorders from Central Michigan University.
With over 12 years of experience in direct patient care and management in skilled nursing facilities, Sarah has developed a robust skill set that bridges clinical expertise with operational leadership.
As the Director of Operations at Peak Rehab, Sarah plays a vital role in driving the strategic direction of the organization.
She leverages her extensive background in both patient care and management to ensure operational excellence and alignment with the organization's goals.
Sarah's leadership is instrumental in developing and implementing strategies that enhance patient outcomes, improve efficiencies, and contribute to the overall success of Peak Rehab.
Her unique blend of clinical knowledge, business acumen, and strategic vision continues to drive Peak Rehab's commitment to providing high-quality care and exceptional service.
General Manager/ Human Resource
Laura Keit
With over 20 years in customer service and more than a decade in medical administration, Laura brings experience, warmth, and efficiency to everything she does. She holds an Associate’s degree in Applied Sciences – Business Administration, with a focus on Medical Office Administration.
Laura specializes in insurance verifications, prior authorizations, onboarding new therapists, and credentialing providers with in-network insurances.
Director of Rehabilitation- Northern Region
Emily Leivo
Emily Leivo serves as Director of Rehabilitation at Peak Rehab, where she leads high‑ quality, patient‑centered rehabilitation services with a clear focus on outcomes, innovation, and compassionate care. With her blend of advanced clinical expertise and executive‑ level healthcare leadership.
Emily has over 18 years of experience as a Physical Therapist Assistant (PTA) since graduating from Delta College. She is currently the only PTA in Michigan with advanced proficiency in neurology certification from the American Physical Therapy Association—a distinction that reflects her advanced expertise in treating complex neurological conditions. She also holds a master’s degree in healthcare administration from the University of Phoenix.
Emily’s commitment to healthcare extends beyond the clinic walls. She is actively involved in community health initiatives, including serving on the Community Advisory Council for local school-based health clinics, volunteering with local school athletic programs, and serving as an elected trustee demonstrating her belief that rehabilitation and wellness begin within the community. She is also a member of both the American Physical Therapy Association and American College of Healthcare Executives.
