If the weather is expected to be inclement, or becomes so during the day, please listen to KYW radio, 1060 AM or watch your local television newscast for early dismissals, delays or school closings.
Green Tree School & Services’ number is 190. Please write it down and keep it handy.


Green Tree School & Services is currently hiring Educational and Behavioral Health staff. Please click here to view a list of open positions!

Join Our Email List!


social media facebook twitter youtube

Support the New Green Tree School & Services
and Honor or Memorialize a Loved One

Click the banner below to use Amazon Smile and help raise funds for GTSS! amazon

To learn more about supporting Green Tree School & Services just by shopping online with Amazon Smile, click here!

Click the logo below to use Goodsearch and help raise funds for GTSS! Goodsearch: You Search...We Give!

To learn more about supporting Green Tree School & Services just by searching the Web and shopping online with Goodsearch, click here!

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.



Jumpathon at Oaks Sky Zone Indoor Trampoline Park Benefits Green Tree School & Services!

The Joint Will Be Jumping on Saturday, April 18 beginning at 10:30 a.m.

Green Tree School & Services is holding a Jumpathon on Saturday, April 18 at 10:30 a.m. at Oaks Sky Zone Indoor Trampoline Park (122 Mill Road, Unit B-250, Oaks, Pennsylvania, 19456). This fun(d) raiser will provide an opportunity for the whole family to participate. Participants may jump high enough to dunk a basketball and always be assured of a soft landing.
Learn more here.



Patricia Wellenbach

Green Tree School & Services’ CEO Patricia Wellenbach Invited to Participate in Philadelphia Business Journal’s Mentoring Monday, March 30, 2015 at 7:30 a.m.

National Event Will Bring Together 10,000 Business Women in 43 States

Women looking for advice and to rub elbows with some of the top female executives in town need look no further than the upcoming Philadelphia Business Journal’s Mentoring Monday event taking place on March 30, 2015 from 7:30 a.m. --- 10:00 a.m. at Moore College of Art
(20th Street and the Parkway, Philadelphia, PA 19103). Learn more.


students give backGreen Tree School & Services’ Students
Give Back and are Featured on FOX 29 News

Fox 29 came to Green Tree School & Services last December to do a story about how GTSS students were giving back to the community. 

Watch it here and subscribe to the GTSS Youtube page today!



usa mental health

Youth Mental Health First Aid: Green Tree School & Services Partners with Healthy Minds Philly in June, 2015 for a Two-Day Conference

Green Tree School & Services is partnering with Healthy Minds Philly to host a training program designed to help family members in crisis. “Youth Mental Health First Aid” is scheduled in two half-day sessions on Wednesday, June 3rd and continues on Thursday, June 18th with both sessions from 1:00 p.m. -- 4:30 p.m. Learn more here.


Philadelphia Autism Project Final Report is Released

lisa wood

Lisa Wood, Director of Education,
Head of School

Councilman Dennis O'Brien held a hearing in the Disabled and Special Needs Committee and released the Philadelphia Autism Project Final Report on February 2. The hearing provided a snapshot of the project and plans for implementation to City Council members and staffers, stakeholders who participated in the project, as well as to the general public.

This is of special interest to the entire special needs community, including staff at Green Tree School & Services. Both Lisa Wood, director of education, head of school, and Rosemarie Manfredi, Psy. D., PA licensed psychologist, serve on the taskforce for this committee and Dr. Manfredi helped to draft the report. Learn more here.





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!