We are..

Jenn and Kristin, an occupational and physical therapist, have more than 25 years combined experience in a variety of pediatric settings and seven kids between them.

After seven years of working in a children’s hospital, their friendship and passion, drove them to dream about opening a service like Milestone Specialists of America. The hope of creating space and time to work with moms and their babies/children in promoting progression through typical development fueled them to create this company (using an effective easy access multidisciplinary model); however, their dreams could not have been fulfilled without the knowledge, skills, and passion of their friend and confidant, Adrienne.

These three friends began talking and dreaming. After many hours and a lot of hard work, these plans quickly started to become a reality for this trio. Jenn, Kristin and Adrienne together create the ideal services that can meet the needs of your families and children. We very much look forward to working with you!! 

Three friends working together 


one goal in mind, to help BABIES and parents


over 25 years combined experience


kids between the three of us


eight years working together 


Our passion for our babies and families

Working Together

Meet our team


Jennifer Ainsworth is a pediatric occupational therapist and Neonatal Touch and Massage certified. Jenn graduated with a double major in Elementary Education and Psychology from the University of Miami in 2003. She continued her education at Florida International University in Miami, Florida, earning her Master of Science in Occupational Therapy in 2005.

There was never a question that her goal throughout all her schooling was to work with children, as this was her passion. She began her career at United Cerebral Palsy in Orlando, Florida, serving children with varying diagnosis in an outpatient setting. In 2010, Jenn continued her work in pediatric rehabilitation at Arnold Palmer Hospital Medical Center. After two years, the opportunity to serve inpatient in the neonatal intensive care unit was presented at Winnie Palmer Hospital for Women and Babies.

Jenn loves to provide education on feeding and development to moms. She has an extensive training and experience in feeding difficulties from neonates through childhood. Jenn has attended Neurodevelopmental Treatment courses for handling and facilitation of typical motor patterns through milestones. She has also worked with various populations displaying an array of infant feeding difficulties and state regulation, creating a custom plan that works well for the infant/child as well as the family. She believes that by providing education and understanding of sensory systems, feeding cues, simple developmentally appropriate play ideas, schedules, and mom tips, that mothers can truly thrive and enjoy each season of motherhood.

Jenn lives in Orlando, FL with her husband, Andrew, and their four boys: Max (7), Ben (6), Daniel (4), and Nathan (2). They homeschool their boys and love to spend time together as a family doing anything outdoors. In her free time, Jenn loves to cook, bake, garden, and run. Working beside mothers at any stage who need encouragement and tips to help make this motherhood journey easier is truly what energizes her.

Jennifer Ainsworth MS, OTR/L NTMTC MSA Lead Occupational Therapist & Co-Founder


Kristin Horwath is a pediatric physical therapist, certified neonatal therapist, and Neonatal Touch and Massage certified. Kristin graduated with a bachelors in Health Science at the University of Florida in 2008 and received her Doctorate of Physical Therapy at the University of North Florida in 2011. She knew her passion was in pediatrics and began her career at Wolfson Children’s Hospital, treating in outpatient and acute care pediatric rehabilitation. In 2014, Kristin moved to Orlando and continued her work in pediatric rehabilitation at Arnold Palmer Hospital Medical Center and with the neonatal population in the neonatal intensive care unit at Winnie Palmer Hospital for Women and Babies.

Kristin has worked in the acute care setting treating the most critical patients as well as in outpatient pediatric rehabilitation centers, assisting in the development of the sports and
orthopedics program in coordination with physicians and managing a caseload of pediatric patients, birth to 21 years of age, with a variety of neurologic, orthopedic, genetic, developmental and congenital conditions in both the outpatient and acute care settings. Kristin desires to always advocate even for the tiniest patients that live in the NICU for weeks to months.

She always enjoys educating parents on how they can help facilitate their baby’s
optimal development from the time in the hospital to when they are home and ongoing throughout early infancy and childhood. She is also supporting and fostering the need for developmentally appropriate care for patients with complex needs, involving a multidisciplinary approach and team effort. Kristin believes working in pediatrics allows you to see the rewarding impacts a person can have on a family, helping patients to achieve their greatest potential possible. Kristin always tries to instill hope and positivity in all those around her –patients, families, coworkers, friends, acquaintances.

Kristin lives in Lake Mary, FL with her husband, Matt, three girls Daralyn (7), Delaney (5), and Bristol (2). Outside of work, Kristin loves spending time with her girls and husband, going to the beach, boating, eating delicious foods, and running (to burn off all those calories)! It is truly inspiring when parents see and celebrate the milestones their little ones have made and achievements no matter how small.

Kristin Horwath, PT, DPT, CNT, NTMTC
MSA Lead Physical Therapist & Co-Founder


Adrienne “Annie” Alexander was born in Brasilia, DF / Brazil. She received her bachelor’s in Physical Therapy in 1996 (Brasilia, DF), followed by a specialization degree in Advanced Clinical Physical Therapy.

She continued her education in the U.S.A. and received her master’s degree in Healthcare Administration, and her T-Doctor in Physical Therapy from NSU - Nova Southeastern University. She is also a Licensed Registered Respiratory Therapist and worked in the NICU from 1999 to 2005.

Her past experiences also include acute orthopedic, neurologic, cardiopulmonary rehab, aquatics, and fitness/injury prevention. Adrienne worked as the Allied Health Education Consultant at APH/WPH - Inpatient and Outpatient Pediatric Rehabilitation Services from 2015-2020. Her outstanding role in the pediatric rehabilitation department surpassed her title in several occasions.

Her passion is pediatrics, and most of her life has been dedicated to serving babies, children & families in different capacities. She understands the challenges faced by new mothers and she will continue her lifelong mission to promote the best quality of care for babies and families through “Milestone Specialists of America”.

Adrienne is married to Gregor Alexander. They live in Winter Park, FL with their son Gabriel (16) who is the light of their lives.

Adrienne Alexander, RRT, MHA, DPT
MSA Director of Operations & Co-Founder

Meet our Co-founders 

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