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Green Tree School & Services (GTSS) has relocated into its new building.

Check out the photos and stories of how it all happened.




Welcome to Green Tree School & Services

Green Tree School & Services (GTSS) is a nonprofit, state-licensed agency that operates an Approved Private School, and provides on-site and community based Outpatient Services, Behavioral Health Rehabilitation Services and School Therapeutic Services for children and young adults, ages 5-21, classified with Autism Spectrum Disorder, Emotional and Behavioral Disorders and Developmental Delays.

GTSS’ philosophy is rooted in the belief that regardless of their unique challenges and abilities, every child and young adult should have the opportunity to learn the academic, social, emotional, and vocational and life skills they need to achieve resiliency and succeed in their learning, living and working environments. GTSS has worked with children and young adults with special needs since 1957, marking over a half century of Transforming Lives and Impacting Communities.

Please note: Green Tree School & Services is open for admissions and referrals.
Please contact Adria Bickel to learn more about the Approved Private School.
Please contact Joanna Hall to learn more about Behavioral Health Services.


Philadelphia Flyers Assembly at Green Tree School & Services Educates and Entertains


(L-R) Philadelphia Flyers Fan Development staff member Jason Tempesta, GTSS paraprofessional educator in Autism Support, Jessica Hudson, GTSS students Amir Taylor- Thomas and Foxx Marion, GTSS physical education teacher Trish Morris, Flyer Fan Development staff member Tom Peffall, and (center/back) Philadelphia Flyer legend Bob “The Hound” Kelly.

On Tuesday, December 2, 2014, Green Tree School & Services (GTSS) held a Philadelphia Flyers assembly in the gymnasium of the facility located at 1196 East Washington Lane in Philadelphia. The agency has been serving children with special needs since 1957. The assembly focused on the theme of teamwork and being safe when playing sports.  Flyers Ambassador of Hockey, Bob "The Hound" Kelly, was on hand to lead the assembly.  

Approximately 40 students from the Autism Support Program and Lower School were in attendance.  This was the first time the Philadelphia Flyers presented their School Assembly program to children with special needs. Jason Tempesta and Tom Peffall, members of the Philadelphia Flyers Fan Development staff, helped Bob Kelly educate students on using teamwork to achieve their goals in school, sports and at home.  Kelly also spoke with students about being safe when playing sports and taught them about the sport of hockey. The program included video highlights, teacher-student races, student equipment modeling, and more.

  Selected in 1970 by the Philadelphia Flyers, Bob Kelly was a left-winger who helped guide the Flyers to their two consecutive Stanley Cup championships in 1974 and 1975.  He scored the 1975 cup-winning goal.

Green Tree School & Services programs and services include a licensed Approved Private School, Outpatient Services, Behavioral Health Rehabilitation Services and School Therapeutic Services. It is located in historic West Oak Lane, but provides services throughout the Greater Philadelphia area. GTSS serves over 350 individuals per year with Autism Spectrum Disorders, those who are identified as Seriously Emotionally Disturbed, the Neurologically Impaired and others through its Behavioral Health Outpatient program. Please call (215) 866-0200 to learn more. Check out the photos from the event on Green Tree School & Services Facebook page.


Bob “The Hound” Kelly speaks to Green Tree School & Services students about hockey and teamwork as GTSS student John Paterson tries on the equipment, assisted by Philadelphia Flyers Fan Development staff member, Tom Peffall.


Holiday Season at Green Tree School & Services

It’s the holiday season at Green Tree School & Services, and students are involved in many projects that teach them a little about commerce and recycling, a lot about public service, and to think of those less fortunate during the holiday season.

feed your community

GTSS students have just begun a Winter Clothing Drive and a Feed the Community effort. The Upper School Juniors are collecting coats, jeans, sweaters, gloves, hats and scarves for those without these essentials in donations boxes located throughout the School. Those busy Upper School Juniors are also collecting nonperishable food to donate to shelters for those in need. This includes canned goods, boxed cereal, tea bags, pancake mix, peanut butter, jelly, rice, oatmeal, and baby food/formula.

donate shoes
Jaylen helps out by taking the shoes and sneakers to the recyclers.

The Shoe Recycling Collection has been going on for a while now. All of these old shoes and sneakers are being recycled to make new athletic surfaces. As the photograph shows, the staff and students have been more than happy to participate!


Finally, GTSS math teacher Lauren Seder is once again working with Upper School students to bake pies from scratch just in time for the Thanksgiving Holiday. Staff buys the pies (Pumpkin, Sweet Potato Souffle and Apple) and they taste quite as yummy as those shown made by last year’s class. This is the fifth year for this drive and all profits will benefit the GTSS’ activities fund, which will help cover the cost of student special events and trips.



AS 2014 TOP-RATED NONPROFIT Award is based on Positive Online Reviews

great non-profits

Green Tree School & Services has announced that it has been honored with a prestigious 2014 Top-Rated Award by GreatNonprofits, the leading provider of user reviews about nonprofit organizations. The Top-Rated Nonprofit award was based on the large number of positive reviews that GTSS received, including those written by volunteers, donors and clients.

“We are excited to be named a Top-Rated 2014 Nonprofit,” says Patricia D. Wellenbach, Green Tree School & Services’ CEO. “It has been a game changing year for us, and the move into our new space on Washington Avenue has meant so much to the children and young adults with unique challenges and abilities at GTSS that we serve. We are proud of the services we have provided on-site at the school, but also for all of our off-site programs in the schools, community and homes that actually make up largest part of our business. Our Behavioral Health, Outpatient Services and Diagnostic Programs continue to grow and the comments we receive on websites like Great Nonprofits are another indication that the high quality of these programs is being recognized by others.”

“Savvy donors want to see the impact of their donations more than ever,” said Perla Ni, CEO of GreatNonprofits. “People with direct experience with Green Tree School & Services have voted that the organization is making a real difference.” The reviews by volunteers, clients and other donors show the on-the-ground results of Green Tree School & Services. This award is a form of recognition by the community.

GreatNonprofits is the leading site for donors and volunteers to find reviews and ratings of nonprofits. Reviews on the site influence 30 million donation decisions a year. Visit for more information. Great Nonprofits aims to inspire and inform donors and volunteers, enable nonprofits to show their impact, and promote greater feedback and transparency.

GTSS has a brand new Fall Newsletter!

Read about the Lasting Legacy Award dinner, the Playground Opening, Musicopia and Learn What is
New and Coming Soon.

fall 2014 newsletter



Give to Green Tree School & Services through United Way

Green Tree School & Services welcomes gifts made through all area United Ways. Please write GTSS’s number in the “designated agency” box when asked to choose a favorite charity:
#321 for United Way of Southeastern Pennsylvania (SEPA).
                                       Thank You!