Nancy Petzold, RN, BSN

Director of Case Management and Nursing Services

Nancy Petzold is a registered nurse with a bachelor’s degree in nursing from the University of Michigan-Flint. She has been in the nursing field for approximately 25 years, working as an auto case manager, occupational health nurse, and consultant for adult foster care homes for eight years. She also has several years of management experience within the medical profession.
Nancy joined Insight in April 2019.

Allison Piatt ACNP-BC, Nurse Practitioner

External Clinical Director

Allison Piatt, ACNP-BC, is a board-certified nurse practitioner with a specialty in acute care. She completed her nurse practitioner degree with honors from St. Louis University in St. Louis, Missouri, and her nursing degree at the University of Michigan in Flint.

Allison had six years of experience as a registered nurse taking care of step down and ICU surgical patients at area hospitals before pursuing a career as a nurse practitioner. She also worked in general surgery as a nurse practitioner prior to joining Insight in July 2014.

Ali Madha

Corporate Chief Operating Officer

Ali Madha earned his Bachelor of Science in Biology from Texas A&M University in College Station, Texas. Since 2011, he has been a leader in all facets of Insight, from the largest projects to the smallest. He served as Insight’s Business Development Manager in 2013, and his management of the Negotiations and Appeals division for Insight’s medical billing has been the precursor to much of Insight’s recent years growth and expansion.

He is committed to giving back to the community by contributing to the growth of Genesee County. He has been involved directly with community-related projects throughout his tenure at Insight.

Sarah Quedens, PTA

Physical Therapist Assistant

Sarah Quedens is a Licensed Physical Therapist Assistant. She completed her degree at Baker College of Flint. One of her full-time rotations while completing school was at an outpatient facility at Physiotherapy Associates in Holly. There, she provided physical therapy for orthopedic trauma, back, and neck injuries, and post-operative conditions. Her other full time clinical clinical rotation was at S.T.A.R. Rehab in Gland Blanc. She received experience in working with spinal cord injuries, amputees, and traumatic brain injury patients. Her interests are in neurological rehabilitation and aquatic therapy.

Michelle Ososki, PTA

Michelle Ososki is a Licensed Physical Therapist Assistant with twenty years of experience in the field of physical medicine. Michelle specializes in the rehabilitation of neurological injuries through aquatic therapies and unique exercises tailored to each patient’s interests. Michelle brings a creative approach and a perceptive, positive spirit to encourage patients to work hard and stay motivated towards their goals. Michelle enjoys Jeep trail riding with her husband and their two children. In her free time, Michelle likes to garden, work with stained glass, and kayak. Michelle worked with Insight Comprehensive Therapy from 2013 t0 2015 and returned to the team again in February of 2021.

Tyler Barker, PTA

Tyler Barker is a Licensed Physical Therapist Assistant. He graduated from Mott Community College’s PTA program in November 2020. He has been working for Insight Comprehensive Therapy since January 2021. Tyler enjoys working closely with patients in the inpatient rehabilitation setting and his goal as a Physical Therapist Assistant is to help people of all abilities reach their fullest potential and live their happiest and strongest lives.

Kelsey Williams, COTA/L

Kelsey Williams, COTA/L, completed her associate degree at Mott Community College in June 2021. She began her journey at Insight while completing her clinicals and discovered her passion for inpatient neurorehabilitation. Kelsey became an OT technician for Insight Healing Center in September 2021. She became a licensed and board-certified Occupational Therapy Assistant in December 2021. She then was
promoted to a full time COTA position in 2021. She specializes treating patients with neurological disabilities promoting independence and confidence with everyday activities. Kelsey’s goals for the future are to gain knowledge through evidence-based practice for traumatic brain injuries and spinal cord injuries to facilitate the best outcome for her patients.

Brett Davis, COTA/L

Brett Davis is a certified and licensed occupational therapy assistant. He graduated from Mott Community College in Fenton, MI in 2020. He continued his education at Aurora University, working toward a nursing major, when he discovered the profession of occupational therapy assistant and felt it was the best fit for him. Since 2020, he has gained experience in pediatrics, geriatrics, and home health. He then joined the Insight team in May of 2022, where he found his love for neurorehabilitation. Brett is focused on providing patient-centered occupational therapy to help patients achieve their personal and therapeutic goals. As hobbies, Brett enjoys staying fit through sports, playing baseball, floor hockey, and golf.