Our Staff

Barbara Wertheimer

Executive Director

Barbara Wertheimer is a retired attorney who first came to Pegasus in 1991 when her daughter began riding in the program. Over the years she became an active volunteer in many facets of the organization, ultimately becoming President of the Board of Directors in 1997. She continued in that role until April 2007, when she assumed the position of Executive Director following the passing of the founder and former Executive Director of the program, Carol Tatum. Barbara and her family have embraced Pegasus and all that the program has done for countless individuals. She is thoroughly committed to its continued existence as the premier therapeutic riding program in Philadelphia.  

To contact Barbara, please email her: Pegasus5@Comcast.net

Teresa Doherty

Program Director

Leading our Pegasus program is Teresa Doherty. After volunteering at Pegasus in high school, she became passionate about therapeutic instruction and the course was set for her undergraduate studies. She graduated and obtained dual degrees in equine science and psychology at Rocky Mountain College. Innovative with our programs and passionate about our riders, Teresa has expanded and implemented many new programs, initiatives and works tirelessly to ensure our horses are healthy and happy. There aren’t many roles at Pegasus that Teresa hasn’t done as a volunteer or rising through her ranks as a staff member at Pegasus. In addition to teaching, leading community programs and overseeing a growing horse show team, Teresa is also the Director of our summer program. She also holds a PATH therapeutic riding instructor certification as well as PATH certification for Equine Specialist in Mental Health and Learning. 

To contact Teresa please email her:  PegasusTeresa@comcast.net

Alexandra Manwarren

Instructor, Social Media Director and Community Outreach Coordinator

Alexandra Manwarren, or “Alex,” enjoys riding and competing in shows. She has vast experience teaching in both therapeutic as well as traditional riding programs.  A former director for the YMCA, Alex has experience overseeing youth programs, camps, and counseling.  Alex assists Pegasus with our website and managing our social media profiles. She is present at most community outreach events and classroom engagements on behalf of Pegasus. A graduate of Sweet Briar College, she is an ANRC rated rider and is a PATH certified therapeutic riding instructor.

Hannah Fitch

Assistant Instructor

Hannah has been riding and training horses almost her entire life as she grew up on a farm. She has a diverse riding background that includes western pleasure, roping, penning, barrels, hunters and equitation. A graduate of Temple University, she holds her degree in Criminal Justice and Psychology.  Hannah was also a volunteer firefighter and has a vast amount of experience working with youth at horseback riding camps.

Haley Flagg

Instructor

Haley joins our Pegasus staff with a diverse equestrian background. She has grown up riding and showing in the New York state show circuit and spent time as a Vet Assistant. She has gained expertise working with horses in all capacities as an Equine Assistant at a top ranked show barn for over 6 years. A graduate of Drew University she was captain of her Inter-Collegiate Equestrian team and holds her degree in Environmental Science. Haley’s enthusiasm for horses and the interest she takes in her riders is evident to all that meet her.  Haley holds a PATH therapeutic riding instructor certification.

To contact Haley, please email her: PegasusHaley@Comcast.net

Elysia Rodriguez

Volunteer Coordinator and Barn Assistant

Elysia is our Volunteer Coordinator for Pegasus. You’ll know her as she is in every daily picture of the Pegasus volunteer appreciation week! She knows our programs, riders and the best way to integrate our volunteers into the Pegasus way of life. Elysia is also vital to our program as she is also a barn assistant helping to take care of our horses. Elysia got her start at Pegasus with a high school internship, was the 2017 Jr. Volunteer of the Year at Pegasus and she continues to be an integral part of our Pegasus team.  A graduate of El Centro High School, Elysia is currently attending Community College of Philadelphia and will be pursuing a career in nursing. You can email Elysia at PegasusVolunteerCoordinator@comcast.net

Sonia Turnamian

Instructor

Sonia joins Pegasus with an equine studies degree from Centenary University where she received her PATH Registered Therapeutic Riding Instructor Certification from one of top therapeutic riding programs in the country.  She has worked and volunteered at several therapeutic riding programs across the east coast and in the south. A talented rider, who competed in the Intercollegiate Horse Show Association, she will be able to assist in many ways with our Pegasus programs.  We are also excited to partner with Ivy Hill Therapeutic Equestrian Center in a unique program where Sonia will be working as an instructor for both therapeutic riding programs while residing at Pegasus.

Katherine Haber

Instructor

Katherine has been riding for over 20 years and has an impressive equestrian background traversing the U.S showing and instructing from Connecticut to Florida for various private barns and top trainers. A graduate of University of Massachusetts Amherst, Katherine works in social media and marketing for several companies.  She is passionate about volunteering and currently serves on the board for Crohn’s & Colitis Philadelphia. Katherine will be teaching our Senior Saddles program, as well as doing fundraising and development for Pegasus.

Ryan Frech

Assistant Instructor

Ryan joined Pegasus as a volunteer and quickly developed a passion for horses and our Pegasus community. A graduate of Archbishop, he is attending Delaware Valley University to continue his education and further his riding education and compete at horse shows.  As a former Pegasus Volunteer of the Year, Ryan knows the inner workings of our facility, programs and horses. Our riders are quick to develop relationship with his easy going manner during lessons. He is currently pursuing his PATH Instructor Certification.

Casondra Kennedy

Assistant Instructor

Sondra attends Delaware Valley University where she is pursuing her degree in counseling psychology with a minor in equine instruction and training. She has ridden since the age of 8 and is an accomplished rider. With experience volunteering, as well as shadowing at several other east coast therapeutic riding programs, she brings wonderful new ideas to contribute to our program.  She is currently an Instructor in Training for her PATH certification.

Sarah Emery

Barn Assistant

With an amazing smile, a ‘can do’ attitude and a love for our Pegasus horses, Sarah has been a Pegasus volunteer for years and helps take amazing care of our ‘herd’. She is in school pursuing her education in veterinary studies and can be counted on to lend a hand whenever she is needed.

Taylor Adams

Equine Trainer

Taylor Adams is an accomplished horsewoman who has been riding most of her life. She is a graduate of Delaware Valley University where she completed her Bachelors of Science degree in Equine Instruction and Training as well as the British Horse Society certifications through Stage 3. She is currently working through her Masters of Education degree in Teaching and Learning. Taylor’s full-time position is at DelVal where she is the Equine Administrative Assistant and also serves as adjunct faculty. Her work as our Equine Trainer has ensured that we have happy and safe horses.

Corey Woldenberg, DPT

Physical Therapist

Corey Woldenberg is a licensed physical therapist. Her experience volunteering with therapeutic riding programs first inspired her to enter the profession of physical therapy. She has served as a volunteer with therapeutic riding programs for 15 years across several states, and she is thrilled to share her skills with Pegasus. Looking ahead, she plans on pursuing her hippotherapy certification.

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