Office & Administration Team

Lee Ann Weinberg, Executive Director

Lee Ann Weinberg, MBA, MSHA started at Green Hill in May of 2015 and is the third Executive Director in Green Hill’s history. Lee Ann has a background in health care operations and strategic planning, spending nearly six years as the founding Administrator of Metro Specialty Surgery Center, a multi-specialty outpatient surgical hospital. Since 2015, Green Hill has experienced marked growth in its patient services, land, and capital changes including the construction of new offices and the planned expansion of its clinic during the Fall of 2019 so that Green Hill may more effectively meet the demand for its programs.

“My favorite part of working at Green Hill is getting to meet with and connect with the parents each week and watching their children change and grow in front of our eyes. The therapists at Green Hill help children make progress towards their goals and I am proud of the way our therapy also improves the lives of moms, dads, siblings, and families as a whole.”

Courtney Springer, Office Manager

Courtney Springer has been the Office Manager for Green Hill Therapy since May 2017.  Some of her duties include patient intake, scheduling, accounts payable, accounts receivables and medical records management.  Courtney’s favorite part about Green Hill is the special relationships between staff, volunteers and families.  “It’s really hard to not fall in love with everything that happens at Green Hill.  I truly treasure everyone I see every day and consider myself very lucky to be a part of the Green Hill team”.

Courtney has a teenage son that is working towards an electrician apprenticeship.  Most recently, Courtney purchased retired GHT Equine Partner, Charlie.  She also has a dog named Bella.  When not at work, she enjoys cooking, flower gardening, going to the movies and being a new horse owner.


Terrie Harrell, Office Assistant

Terrie has worked at Green Hill Therapy as a critical part of our administrative support team since September of 2016. She is the mother of four sons and worked in insurance authorizations for a physical therapy practice before retiring.

“What I like most about Green Hill is the interaction with the children. They often stop at my door to say hello.  This brightens my whole day along with working with some of the best therapists in the area.  GHT is friendly and professional and everyone works together as a team.”

In her free time, Terrie likes to sew, quilt, crochet and knit and spend time with her husband, Dick, and their Scottish Terriers.

Equine Team

Caitlin Cooper, Hippotherapy Program Manager and Volunteer Coordinator

Caitlin Cooper has been serving in the capacity as Green Hill’s Program Manager since April 2019. Caitlin received her bachelors of Equine Science from the University of Kentucky and completed her certification in Equine Massage in August of 2019.  Caitlin not only selects our horses for our program, she also conditions and trains them. In addition to work at Green Hill, Caitlin is both a coach and competitor in United States Mounted Games Association.

Dianne Davis 

Diane began at Green Hill Therapy as a volunteer and later joined the Equine Staff.

Tim Shull, “Mr. Tim”

Tim Shull, JD Louisville 1990, spent most of his high school years as an unpaid intern at the hunter-jumper barn in his Kingsport, TN neighborhood. He showed jumpers at small horse shows all over east Tennessee and southwest Virginia. While at Transylvania in Lexington, KY, he rode steeplechase races. Between college and law school at the University of Louisville, Tim worked in the race horse industry exercising horses and other jobs. He broke lots of yearlings in Lexington, and he exercised horses at race tracks in Los Angeles, Chicago, New Orleans, Detroit, Arkansas, and Miami, as well as KY.

After law school, Tim represented kids as a public defender for most of his legal career. He retired from the Kentucky Dept. of Public Advocacy.

Tim’s wife, Mary Jo White, is the Director of Medical Student Affairs at the University Of Louisville School Of Medicine. Mary Jo and Tim’s daughter, Sarah Alice Shull, is an actor and lives in New York City.

Zac Tank

Zac has worked at Green Hill Therapy as a member of our Equine Staff for nearly two years. He is a self-described animal lover and has grown to love horses in his time at Green Hill. His family owns two horses, Edna and Joker.

“Working at Green Hill Therapy is very fulfilling, I love that I get to see the kids progress and grow, and know that we are making a difference in their lives.”

Zac was recently married in May of 2019. His hobbies include weight lifting, ultimate frisbee, disc golf, and bourbon.

Therapist Team

Brittany Browning, OTR/L

Brittany Browning, OTR/L joined the Green Hill team in 2015 after earning her Masters of Science in Occupational Therapy from Spalding University in 2014. The uniqueness of Green Hill allows her to not only offer skilled occupational therapy services in a typical clinical setting, but also the chance to utilize equine movement and hippotherapy principles as well as the Home of the Innocents therapeutic pool to provide aquatic therapy. She has completed Level 1 and Level 2 training through the American Hippotherapy Association and has also completed a pediatric aquatics course through Aquatics University.

Whether it’s in the clinic, the barn, or the pool, Brittany enjoys utilizing client-centered treatment principles to help children of all ages and diagnoses reach their full potential. She enjoys collaborating with the children, parents, therapists, office and equine staff that make up our Green Hill family to impact our community in a positive way.

In addition to pediatric experience, Brittany has also had the pleasure of working with adults in long and short term rehab facilities. When she is not at work, she enjoys spending time with her daughter, Caroline, husband, Craig, family, and friends. She also enjoys spending time with her English bulldog, Lucy.

Sarah Halfacre, Clinical Manager, MSOT, OTR/L, ATRIC 

Sarah Halfacre, MSOT, OTR/L, ATRIC, joined Green Hill Therapy’s staff in February of 2017 and has since completed her American Hippotherapy Level 1 and Level 2 training. She provides hippotherapy at Green Hill and aquatherapy at the Home of the Innocents. In September of 2017, Sarah received her certification for aquatherapy from the Aquatic Therapy and Rehab Institute.

Sarah has experience in both adult and pediatric populations with concentrations in mental health and physical rehabilitation settings. She provides educational presentations to a variety of audiences in order to increase awareness and understanding of therapy techniques to benefit differently-abled individuals. At Green Hill, Sarah uses a holistic approach, utilizing creative play activities, making use of the outdoor spaces at Green Hill to engage children in softball, landscape design, and even painting rocks to achieve functional outcomes and reach therapy goals. Sarah has had the pleasure to see dozens of athletes achieve many accomplishments during her 18 years of coaching Special Olympics sports. Sarah has two children and loves sports and living an active lifestyle.

In August of 2019, Sarah Halfacre became board certified in hippotherapy by the American Hippotherapy Certification Board. She is one of only 130 therapists in the world to hold this distinction.

Jane Harper, OTR/L

Jane Harper, OTR/L, B.A., M.A, B.S. has over thirty years experience as an occupational therapist with over twenty-five years specializing in pediatrics. She joined Green Hill Therapy in 2007 after ten years in the First Steps program. She has certification in Level 1 Hippotherapy and Pediatric Certification from the Aquatic Therapy and Rehabilitation Institute. Professional continuing education includes Therapeutic Listening, pediatric kinesiotaping, reflex integration to improve sensory processing, pediatric neuro-development treatment, and the use of assistive technology. Jane uses her creativity to make challenging activities fun and engaging, making Green Hill’s proven playful approach a perfect employment fit.

Jane shares her home with her husband and 10 cats. She is a long-time volunteer with Alley Cat Advocates and provides in-home medical rehabilitation to injured and sick felines (that’s how she got 10).

Sara Johnson, OTR/L

Sara Johnson, OTR/L graduated from Spalding University in 2008 with a Masters of Science in Occupational Therapy. Sara completed her Level II fieldwork rotation at Green Hill. She started working at Green Hill Therapy after graduating. She has completed American Hippotherapy Association Level 1 and Level 2 training. Other continuing education has focused on ‘Autism Meltdowns in Children and Adolescents’, and ‘Social Skills for Children with Autism Spectrum Disorder’. Sara is CPR and First Aid certified for adults and children.

Sara loves working with her kids at Green Hill and watching them grow and become more independent every day. Her treatment style is a client-centered approach, and often incorporates parents and caregivers in the session. Sara believes this approach empowers and motivates the client in the therapeutic process and provides for the best carryover at home.

In her free time, Sara enjoys baking, reading and spending time with her husband, David, and daughters, Madalyn and Olivia.

Karla Powrie, PT

Karla Powrie, PT graduated from The Ohio State University with a BS in Physical Therapy in 1994. Since then, Karla has had experience in an acute care hospital, orthopedics and sub-acute rehabilitation. She has worked at Green Hill since June 2014 and has completed both Level 1 and Level 2 certifications from the American Hippotherapy Association.

Karla’s clinical interests include using neurodevelopmental treatment techniques (NDT) for treating patients with neuromuscular disorders. She loves her 3 and 4 yr old patients but appreciates treating adolescents and teenagers too.

“There’s nothing else like working at Green Hill Therapy. Where else can you go to work and hear horses whinny and have barn smells?  We also have an awesome staff that collaborates well as a team!”

Karla is married to her husband Bob who is also a physical therapist.  They have two grown children Maria and Luke. Karla likes outdoor activities like hiking and kayaking. She has a retired racing greyound named Elmo.

Susanna Diller, COTA/L

Susanna Diller worked in many roles at Green Hill including volunteer, equine/staff team member, interim equine manager then field work student before joining as an Occupational Therapy Assistant in August of 2018.

Susanna’s clinical interests are in mental health, trauma and healing informed care, emotional and self-regulation, sensory integration, occupational justice and utilizing hippotherapy and aquatic therapy in treatment.  Susanna also has an extensive background in riding and working with horses, with a special interest and love of dressage and classical training.  She loves to use the horse as a partner and tool in therapy, whether on the ground or astride, to improve patients’ confidence, self esteem, and overall well-being in order to work towards and achieve their individualized goals.

“I love the creative liberty I am able to take with each session at Green Hill!  The dynamic and progressive tools we have such as the horses and water, with the ability to work in the clinic, outdoors, arena, or at the Home of the Innocents therapy pool provides endless possibilities and opportunities for creative, meaningful, and individualized treatment, accelerating my patients’ progress and keeping sessions fun and engaging!”

Susanna lives with her fiancee, Blair as well as her dog, Azalea, and three cats, Rutabaga, Sandy Boy, and Dimple.  In her spare time, I love attending live music shows, hiking with Blair and Azalea, bird watching, reading, gardening, cooking, and baking.

Olivia Alm, OTR/L