Our People

Tracy Murnan Stackhouse, MA, OTR/L

Tracy is co-founder of the Developmental FX in Denver, Colorado. She is a leading pediatric occupational therapist involved in clinical treatment, research, mentoring, and training regarding OT intervention and neurodevelopmental disorders, especially Fragile X Syndrome and autism. Tracy has a Bachelor’s in Occupational Therapy from Colorado State University and found her work with Eleanor Gilfoyle pivotal in her training. She has a master’s degree in developmental psychology/developmental cognitive neuroscience from the University of Denver and was grateful to work with Sally Rogers during her research training. She is NDT trained, and SIPT Certified. Tracy has written several book chapters on sensory integration and neurodevelopmental disorders, and teaches nationally and internationally on sensory integration, fragile X, autism, and related topics. Tracy enjoys mentoring and spends many hours a month mentoring clinicians from around the world to improve their clinical reasoning skills.

Sarah Scharfenaker, MA, CCC-SLP

Sarah, fondly known as “Mouse,” is co-founder of Developmental FX. She has a Master’s Degree from the University of Montana in Speech Pathology. She has worked in the fields of Fragile X Syndrome and neurodevelopmental disorders for more than 25 years. She provided speech pathology services to the Denver Fragile X Treatment and Research Center at The Children’s Hospital in Denver, Colorado, and accompanied Dr. Randi Hagerman to the UC Davis M.I.N.D. Institute to initiate its program. Mouse has published many chapters and articles on intervention for Fragile X. She consults and lectures on Fragile X treatment both nationally and internationally.

Kaity Dollard, MS, OTR/L, Occupational Therapist

Kaity Dollard, MS, OTR, occupational therapist, moved to Colorado a year ago from New York City and instantly fell in love with the West. She appreciates all of the free and low cost events and activities available here. “Colorado is such an active and well balanced state,” she notes, and added, “I have found my ‘somewhere over the rainbow!’” Kaity graduated with her Master’s Degree from the University of Buffalo in upstate NY. She has worked in schools and clinics and recently at Denver Public Schools. Kaity is excited to be moving to DFX. She states, “I am more than thrilled to become a part of the DFX team and am grateful to start working with an amazingly talented group of therapists! I highly value the “therapy that fits” approach to treatment that DFX stands by, and I am eager to grow and contribute toward making a positive difference in the lives of my future clients and their families.” When not working or walking her dog, you can find Kaity playing soccer for Play Mile High, riding her bike, hiking, swimming and most any other activity that keeps her engaged outdoors. She loves do-it-yourself projects and live music, which is good, as she just bought her first house. Watch out Pinterest! Kaity has a dog, Perlita, from Costa Rica, who she rescued two years ago. Perlita has brought Kaity much joy and helps her live in the present, appreciating each moment!

Kelly Holgate, MS, OTR/L, Occupational Therapist

Kelly brings an uncanny intuition and ability as a therapist- she joined our team at DFX just over two years ago. During this time she has been involved in multi-disciplinary evaluations and treatment of a variety of neurodevelopmental disorders. She is especially passionate about working collaboratively with other professionals and families. The team based therapy is one of Kelly’s favorite things about Developmental FX. She loves that the environment is set up in a way that therapists have opportunities to learn from one another and encourage each other to develop professionally. Kelly received her BS in Exercise Science from Colorado State University and received her Master of Science in Occupational Therapy from the University of South Dakota. She has over 7 years of experience working with children who have sensory processing difficulties and other neurodevelopmental disorders. When Kelly is not at the clinic, some her favorite times are being spent in the mountains, or outside in general, with her husband, Alex, and her dog. She especially enjoys running and hiking.

Meade McCue, Psy.D, Clinical Psychologist

Meade McCue, Psy.D., is a licensed clinical psychologist who provides psychological and neurodevelopmental evaluations, counseling for children and their families, and social skills groups at DFX. In addition to her work at DFX, she provides therapy services to children and families at her private practice in Denver. Meade grew up in Centennial, CO. She completed her graduated training at The Chicago School of Professional Psychology in Chicago, IL and was part of their innovative child and adolescent treatment program. Meade has worked in a variety of setting including schools, outpatient community mental health centers, and private practice. She completed her clinical internship at the Washburn Center for Children in Minneapolis, MN. Meade began working at DFX in 2014 and has appreciated the collaboration between disciplines and DFX’s commitment to truly understanding each individual client and the best ways to serve him/her. In addition to her work at DFX, Dr. McCue works as the staff psychologist at the Havern Center in Denver, a private, non-profit school dedicated to working with the same clientele we see at DFX – those children most likely to fall through the cracks, yet most likely to have improvement with excellent intervention. Meade elects to work at both agencies, as DFX and Havern are both non-profits dedicated to improving the outcomes of the children served. When Meade is not working, she and her husband are busy keeping up with their infant son. She enjoys spending time with her family, walking the dog, cooking, practicing yoga, and exploring the beautiful Colorado outdoors.

Rachel Malmquist, MS, OTR/L, Occupational Therapist

Rachel is originally from Fort Collins and attended Colorado State University before receiving her Masters Degree from Dominican University of California in the Bay Area. Although she very much enjoyed her time in California, she is happy to be back in Colorado to be closer to family and the mountains! Rachel has always felt a special connection with kids and is beyond excited to be a part of the brilliant and passionate DFX team! She is eager to learn and grow every day while making a difference in the lives of her clients and families. Rachel is an adventure and nature enthusiast at heart and loves to be outside and exploring the mountains. She loves spending time with her family and her two cats, Benni & Wally. She is an early bird, and greets each morning with a yoga session and double-shot of espresso before taking on the world!

Emily Marshall, MS, OTR/L, Occupational Therapist

Emily is thrilled to be a part of the DFX team – she says that DFX is her favorite place! Her dedication to working with the families and with her colleagues at DFX is palpable. She is eager to provide therapy for families and likewise to learn alongside therapists that she admires. Her passion is to watch those with whom she interacts change and grow, to listen to their stories, and to share with them hers. During her fieldwork at DFX, she became convinced that DFX is magical. The clients loved walking into the doors and on the flip side she saw the therapists light up with new therapy strategies they wanted to implement. We are honored to have her contributions to the team at DFX.
In her spare time, Emily enjoys reading, riding her bike, hiking or camping, and listening to live music with friends. Yoga is her biggest hobby as she finds herself practicing almost daily at Tula Yoga. She also teach kids’ yoga through Radiant Beginnings (check out the Yoga Rocks the Park schedule this summer for dates when she will be teaching the kids yoga classes!) Denver has a wonderful yoga community. This summer she is looking forward to trying paddleboard yoga in Steamboat. Emily taught a yoga class for kids here at DFX last fall as well, and hope she will continue her teachings here!
When asked if she had any pets she replied, “No, but I have a terrific succulent garden!”.

Syd Martin, MS, OTR/L, Occupational Therapist

Syd graduated in 1992 with a BS in occupational therapy from Pacific University. She have received a School-Based certificate in OT from Texas Women’s University and a MS in occupational therapy from San Jose State University. Early in her career, Syd practiced in Idaho with adults and children with brain injuries, pediatrics and worked in a work hardening program. During this time, she helped provide consultation services for her patients to return to work. She moved to the school system and provided occupational therapy services to children with disabilities and autism. In 2005 her family moved to Denver and she has worked at the Children’s Hospital Colorado in diagnostic clinics, treatment, and research with children and adults with chromosome variations and autism, Down syndrome. She began working at Developmental FX in 2007 and has worked here part time since 2011. She also has worked at Cherry Creek Schools. She has developed expertise in working with children with developmental disabilities, autism, mood disorders and sensory integration difficulties, Prader-Willi syndrome, Down syndrome and coordination difficulties. Syd is certified in the Assisting Hand Assessment and has taken numerous continuing education courses. Syd has two children; a daughter who is in college and a son in graduate/doctoral studies, and a husband with whom she enjoys hiking and the outdoors. Syd enjoys cooking, quilting, reading and crafts. She enjoys playing with children to help them with their development.

Ruth Meissner, MA, CCC-SLP, Speech Pathologist

Ruth, better known as “Ruthie” to the clients she works with, has been with Developmental FX since 2006. She received her undergraduate degree from Marquette University in Wisconsin and her Master’s degree from the University of Texas. Her career began in Chicago with the 0-3 population and it was here where she quickly demonstrated her love of language, as well as her passion to serve her clients, by learning and becoming fluent in Spanish. Ruth loves collaborating and co-treating with OT.
Ruth knows how to provide the “just right” challenge that keeps kids engaged without becoming frustrated and learning, while having fun. She incorporates many aspects of the Hanen Language program into her sessions. Ruth provides evaluative services for Team assessments at DFX, and her expertise and thoughtfulness in this process are apparent. She and her husband are kept busy with two young school aged girls and growing the best tomatoes in Denver.

Angela Sauer, MS, OTR/L, Occupational Therapist

Angela started working at Developmental FX in August 2013. I have BS form Gonzaga University and my MS in Occupational Therapy from Arizona School of Health Sciences (AT Still University). I began my career in 2002 working with amazing therapists at Texas NeuroRehab Center in Austin, Texas. Here I worked with clients with traumatic brain injuries. In 2005 I transited to working with children and moved to Denver in 2007 to work for the Cherry Creek School District. It was an honor to join the team at Development FX two years ago, in 2013. The love, compassion and support at DFX what makes this a wonderful place for everyone.
Learning is a passion of mine and have taken many continuing education classes throughout the years including topics in sensory integration, neurodevelopmental treatment, assistive technology, cranial sacral, myofascial release, social skills, executive functioning and kids yoga. In my spare time I enjoy going to yoga, hiking, snowboarding, mountain biking, reading, traveling and doing anything with my wonderful dog Shanti. I am also beyond excited to be expecting my first baby in December 2015.

Libby Seamans, MA, CCC-SLP, Speech Therapist

Libby is a Colorado native and has always known that her passion is working with exceptional children. Libby started her professional career over 10 years ago as an educator and interventionist with an Autism resource center in Arizona where she discovered the rewarding work of speech therapists. Libby is invigorated by the people and the progress she sees each week at DFX and is humbled to be on a team of top-notch therapists who make DFX such a great fit for so many families. As an early intervention speech therapist, Libby also provides speech and language services to children birth through age three and their families in Denver. She loves the opportunity to collaborate with families and to build relationships with children that bolster the successes of therapy sessions. When not in “therapist mode,” Libby can be found enjoying time with her husband and their vivacious 3-year-old son. Together they love traveling, being outdoors and going on adventures of all kinds.

Jennifer Vermeyen, Practice Manager

Jennifer Vermeyen is a graduate of the University of Colorado with a BS in Business and an emphasis in Finance. She spent her early career in Business Development for Baxter Health Care in Los Angeles. Upon returning to Denver, she went to work for Johns Manville as a finance manager. She has been married to her husband Tracy Vermeyen for 25 years and they have two children, Natalie and Matthew. Jennifer joined Developmental FX in 2006 as Office Manager and has since been promoted to Practice Manager. She is the person at the helm of our small but mighty practice – keeping all the clinicians and families organized and putting up with the co-founders busy schedules. She is available to answer your questions, help you problem solve any scheduling needs, or guide you to the resources you might need for insurance or other concerns.
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Jackie Zube, The Billing Office

Billing Agent for Developmental FX
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Holly Krumholz, Krumholz Accounting Service

Krumholz Accounting provides our monthly accounting services