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Blue Horizon Therapy

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About Us

As a husband and wife team, Randy and Heidi Stewart launched Blue Horizon Therapy in the summer of 2011 with the mission to provide exceptional child centered care to families in the Southwest Denver area. Combining Randy’s sales management experience and Heidi’s clinical experience as an Occupational Therapist, the husband and wife team have steadily grown Blue Horizon Therapy together. Our daily goal is to establish and maintain relationships with our clients, their families, and payers of services while providing exceptional care that is client driven and focused on independence.


Randy Stewart

CEO and Owner

Randy Stewart and his wife, Heidi founded Blue Horizon Therapy, LLC in 2011. Randy was born and raised in the Pacific Northwest where he was an avid steelhead fisherman and raced motorcross. He received an Associates Degree in 1989 from Universal Technical Institute in Automotive and Diesel Technology and has worked predominantly in the industrial and manufacturing fields in sales and management. After 22 years in those industries, Randy decided to go into the outpatient healthcare business with his wife. Randy enjoys golfing, fishing, and bow hunting. He lives with his family and several pets in the Roxborough area of Littleton, Colorado.


Heidi Stewart, M.Ed., OTR/L

Clinical Director and Owner

Heidi Stewart and her husband, Randy founded Blue Horizon Therapy, LLC in 2011. A native of Colorado, Heidi left her home state to attend Pacific University in Forest Grove, Oregon where she graduated in 1994 with a Bachelors of Science in Occupational Therapy. Heidi worked for 5 years as a pediatric Occupational Therapist in a local school district in the Portland metropolitan area while also occasionally working weekends in acute care psychiatry at St. Vincent’s Hospital. In 2000, Heidi moved back to her home state with her husband. Since her move back to Colorado, Heidi has worked at Children’s Hospital, Elizabeth School District, and Douglas County School District. In 2011, Heidi completed her Masters of Education with an emphasis on Autism Education from Regis University. Heidi enjoys reading, hiking, and most of all spending time with her husband, Randy and their two children.


Monica Ritzdorf, COTA/L

C.O.T.A (Certified Occupational Therapy Assistant)

Monica graduated from St. Mary’s College in Minneapolis, Minnesota in 1985. She was previously an undergraduate student in Special Education at St. Cloud State University in Minnesota. Monica has over 38 years of Occupational Therapy experience and has been working in the pediatric field since 2000. She has worked in the public school system for 20 years, and prior to that worked in the field of adult physical rehabilitation. Monica has a passion for providing children with all levels of abilities a fun and caring environment to reach their specific goals. She has two grown boys, lives in Highlands Ranch and enjoys hiking, paddle boarding and traveling.


Sarah E. Yost, OTD, OTR/L

Occupational Therapist

Sarah is a Registered and Licensed Occupational Therapist in Colorado. She earned her Doctor of Occupational Therapy from Washington University School of Medicine in St. Louis, MO, in 2013. Her research focus was Participation Factors in Children who are Deaf and Hard of Hearing. Sarah received her ADHD Clinical Services Provider Certification in 2020. She received her Lactation Counselor Certification in 2021. Sarah’s clinical work experience includes outpatient pediatrics, lactation counseling, and early intervention. Sarah is passionate about children and has worked with children of all ages and abilities. She enjoys hiking and biking with her husband and two kids, and just being in the Colorado sun!


 

Mallory Bigler, B.A.

Speech Language Pathologist Assistant

Mallory is a Colorado native and received her Bachelor’s degree in Speech and Hearing Science with a minor in Special Education from Metropolitan State University of Denver. She has worked in several school settings in addition to Blue Horizon and is passionate about working with kids with a variety of communication disorders, ranging from mild to severe. She has worked with kids ranging from under two to seventeen years of age. She attended Talking with Technology Camp through Children’s Hospital Colorado in which she gained valuable knowledge in implementing technology in language activities and the daily lives of children with severe language impairments. Mallory currently lives in Parker with her husband, Sean, 10 month old daughter, Rylee and puppy, Bentley. She loves to go on walks with her family and enjoys the outdoors.

Emily Penrod, MS, CCC-SLP

Speech-Language Pathologist

Emily graduated from Marquette University in Milwaukee, WI in 2013 with a Masters of Science degree in Speech-Language Pathology. She has worked with children aged 0-21 in pediatric clinic and public school environments and is passionate about improving communication skills in children of all abilities. Emily loves working with children and their families and believes learning should be fun. She lives in Littleton, CO, with her husband and 2 young children and enjoys reading, hiking, and snowboarding.


Robin Kessel MS, CCC-SLP

Speech-Language Pathology and Audiology

Robin graduated from the University of Oregon with a BA in Speech-Language Pathology and Audiology, followed by a master’s degree in Communication Disorders and Speech Sciences from the University of Colorado-Boulder. Robin is a licensed speech language pathologist in the state of Colorado and holds a Certificate of Clinical Competence from the American Speech Language Hearing Association. Her clinical experience includes 30+ years evaluating and treating communication disorders, primarily with preschool and school-age children, in public school and private practice settings. Robin and her husband live in Littleton and have two adult children. Her favorite leisure activities include baking, reading, and watching sports.


Sarah Cameron MS, OTR/L

Sarah Cameron has her Bachelor of Arts in Psychology from California State University, Monterey Bay and her Master of Science in Occupational Therapy from Colorado State University. She has over 10 years of experience working with children. Sarah enjoys working on improving fine and visual motor skills, functional math skills and executive functioning in occupational therapy to enhance overall performance and participation in kids’ lives. Sarah enjoys exploring Colorado, traveling, crafting and playing with her cat, Nala, in her free time.


Abigail Lutz, SLPA

Abby graduated from Marquette University in Milwaukee, WI with a B.S. in Speech Language Pathology and Audiology. With a background as a Middle School Special Education Teacher, she is passionate about helping children develop communication skills in a supportive, sensory-friendly environment. Abby is dedicated to making therapy sessions engaging and enjoyable for every child. Outside of work, she lives in Denver and spends her free time exploring Colorado with her dog Sadie.


Samantha Cortes, Office Administrator

Samantha is a highly organized and detailed oriented office administrator with 6 plus years of experience, skilled in managing administrative tasks, coordinating schedules and maintaining efficient office operations. Samantha is a Colorado native currently living in Littleton with husband and two children. She enjoys walks, swimming and spending time with her family.



Phone: (303) 886-9921
Fax: (720) 645-1646
info@bluehorizontherapy.com
8 W. Dry Creek Circle Suite 210,
Littleton, CO 80120

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8 W. Dry Creek Circle Suite 210,
Littleton, CO 80120

Phone: (303) 886-9921
Fax: (720) 645-1646
info@bluehorizontherapy.com

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