The Children’s and Adult Center for OCD and Anxiety brings together world-renowned experts in the treatment of anxiety, OCD and related disorders in children, adolescents and adults. These providers share the common goal of bringing the most well-studied and effective treatments of anxiety and OCD to those who can benefit. Their mission is to teach patients the skills they need to competently overcome the limitations that anxiety creates so that they can go on to lead happy, successful, and importantly, unburdened lives. Anxiety Disorders are among the most prevalent diagnoses in children and adults, but they are also among the most responsive to treatment. The prognosis is very good for those who are contending with an anxiety disorder, provided that they receive proper treatment. Each of the therapists at the Center specializes in the treatment of anxiety disorders. Their specialties and experiences are described in our profiles below.

*Please note: The Children and Adult’s Center for OCD & Anxiety is not a group practice, but an office where individual private practice providers with specialized expertise in OCD and anxiety disorders across the lifespan practice. Please also note that for the health of all, we are a fragrance-free office.

Tamar Chansky, Ph.D.

484.530.0778, extension 1 and 215.644.7744

Dr. Tamar Chansky founded the Children’s and Adult Center for OCD and Anxiety in in 1998. Dr. Chansky earned her Masters in Education from the University of Pennsylvania, and received her Doctoral Degree in the Temple University Clinical Psychology Program under the direction of Dr. Philip Kendall. Dr. Chansky has specialized in working with anxiety disorders throughout her career. She currently treats children and adults with anxiety disorders including: Obsessive-Compulsive Disorder (OCD), generalized anxiety disorder, social anxiety disorder, separation anxiety disorder, panic disorder, specific phobias (such as bees, dogs, elevators, airplanes), trichotillomania, tics, and in some cases PTSD.

Dr. Chansky gives trainings to parents and professionals and frequently appears on radio and television. She is frequently interviewed by the media including: The New York Times, Health Magazine, Real Simple, O Magazine, Better Homes and Gardens, Cosmopolitan and Parents. Dr. Chansky is the author of the popular, Freeing Your Child series, including Freeing Your Child from OCDFreeing Your Child from AnxietyFreeing Your Child from Negative Thinking, and most recently, a book for adults suffering with excessive worry: Freeing Yourself from Anxiety. Dr. Chansky works with children as young as three years old and with adults of all ages. Dr. Chansky also provides parent consultation and also sees adults with anxiety disorders. In addition to having an office at the Center, Dr. Chansky sees patients in her home office in Chestnut Hill. 

Though availability may vary, typically Dr. Chansky can schedule new patients within 2-4 weeks. New patients usually begin with a daytime appointment until an after-school appointment becomes available. This may take 1-2 months, or sometimes less.  Typically appointments are scheduled every two weeks, unless a more or less frequent appointment is indicated.

You can learn more about Dr. Chansky at:

Lynne Siqueland, Ph.D.

484.530.0778, extension 2

Dr. Lynne Siqueland is a psychologist at the Children’s and Adult Center for OCD and Anxiety and has been specializing in treating anxiety disorders in children and adolescents for over 20 years. She has extensive experience working with children of all ages beginning in the preschool years with a focus on the transition from adolescence and young adulthood. She has a special interest in guiding parents and teens through the transition into young adulthood of maintaining connection and closeness while encouraging and building autonomy and competence.  She also treats adults.

Dr. Siqueland has expertise in the evaluation and cognitive-behavioral treatment of the following difficulties in children, adolescents, and adults. She also has experience working with co-occurring depression and behavioral issues when anxiety is the principal presenting problem

  •   Obsessive Compulsive Disorder
  •   Generalized Anxiety and Stress
  •   Separation Anxiety
  •   Social Anxiety and Selective Mutism
  •   Panic
  •   Specific Phobias
  •   Sleep problems
  •   Perfectionism
  •   Tic Disorders


Dr. Siqueland is also glad to provide consultation to parents and families around peer, behavioral and parenting issues even if parents are not certain their child needs to be involved in treatment.

Dr. Siqueland received her Doctoral Degree in the Temple University Clinical Psychology Program under the direction of Dr. Philip Kendall.  At Temple, she was involved with Dr. Kendall and other graduate students in developing the first individual and family-based treatment manuals for anxiety in children and participated in the first clinical trials about their effectiveness.  Dr. Siqueland was a full faculty member at the University of Pennsylvania Medical School, Department of Psychiatry, and Center for Psychotherapy Research for 8 years before entering private practice full time. 

Dr. Siqueland's clinical work and research publications focus on integrating individual CBT approaches with family work. She works with children and adolescents to develop a sense of competence and mastery. Dr. Siqueland has published on the role of family interactional styles that can maintain anxiety and what promotes competence.  

Dr. Siqueland also is involved in developing and conducting training workshops and individual consultation to professionals on the treatment of anxiety and OCD locally, nationally, and internationally.  She and her colleagues really enjoy working with parents and have also been providing parent workshops around these same topics at the clinic and in the community.

Chiara Baxt, Ph.D.


Dr. Chiara Baxt is a pediatric psychologist at the Children’s Center for OCD and Anxiety, specializing in treating children and adolescents with medical conditions and childhood anxiety disorders. She has had extensive experience in helping children with many different types of medical conditions such as abdominal disorders, asthma/ allergies, eczema, pain, problems with eating, life-threatening illness, severe injuries, and organ transplantation. Dr. Baxt’s treatment philosophy is to apply psychological and behavioral principles to maximize each child’s health and overall well-being. She provides Cognitive Behavioral Therapy to children with adjunctive family therapy as needed. Dr. Baxt works collaboratively with other healthcare providers and provides parent consultation.

Dr. Baxt attained her PhD at Fordham University, completed internship training at Geisinger Medical Center, and fulfilled post-doctoral training at the Center for Pediatric Traumatic Stress at the Children’s Hospital of Philadelphia. Dr. Baxt remained on staff at the Children’s Hospital of Philadelphia providing treatment to hospitalized and chronically ill children and their parents and conducting research on traumatic impact of illness and injury in children and their parents. She also provides trainings on anxiety and its treatment for healthcare professionals, parents, and other therapists.

Deborah Roth Ledley, Ph.D.
484.530.0778, extension 6

Dr. Roth Ledley is a psychologist at the Children's Center for OCD and Anxiety, specializing in the treatment of anxiety disorders in children, adolescents, and adults. She completed her PhD at the University of Toronto and did post-doctoral training at the Adult Anxiety Clinic of Temple University. Prior to joining the Children’s Center, she was a faculty member at the University of Pennsylvania where she worked at the Center for the Treatment and Study of Anxiety.

Dr. Ledley has done extensive research on the nature and treatment of anxiety, publishing over 40 scientific papers and book chapters, as well as three academic books. Her book, Making Cognitive-Behavioral Therapy Work, now in its second edition, has sold almost 20,000 copies.  It is used as a textbook in many clinical psychology training programs throughout North America and has been translated into numerous foreign languages. Dr. Ledley also coaches expectant and new mothers, basing her work on her book, Becoming a Calm Mom: How to Manage Stress and Enjoy the First Year of Motherhood

Dr. Ledley sees patients at the Center, and at an additional office in Wynnewood, PA.  She has expertise in the evaluation and cognitive-behavioral treatment of:

  •  Obsessive Compulsive Disorder
  •  Separation Anxiety
  •  Specific Phobias
  •  Perfectionism
  •  Social Anxiety and shyness
  •  Sleep difficulties
  •  Panic Disorder
  •  Generalized Anxiety and Worry
  •  Anxiety in expectant and new parents
  •  In addition, Dr. Ledley enjoys doing parent coaching


Muniya Khanna, Ph.D.


Dr. Khanna is a licensed clinical psychologist specializing in the cognitive-behavioral treatment of childhood anxiety disorders and obsessive-compulsive disorder, as well as OC-spectrum disorders including Tic Disorders and Trichotillomania. She provides weekly and more intensive (2 days per week) therapy, depending on the needs of the child, and works very closely with parents and other caregivers in the child’s life (including school staff, psychiatrists and other providers) whenever warranted to ensure the best outcomes. 

Dr. Khanna has expertise in the evaluation and cognitive-behavioral treatment of:


  •  Obsessive Compulsive Disorder
  •  Generalized Anxiety and Stress
  •  Separation Anxiety
  •  Social Anxiety
  •  Panic
  •  Specific Phobias
  •  Sleep problems
  •  Tic Disorders
  •  Trichotillomania


Dr. Khanna is also currently a Research Investigator at the Children's Hospital of Philadelphia where she is conducting trials dedicated to disseminating evidence-based treatments to youth in urban public schools.  Prior to her coming to the Children and Adult's Center, she was Faculty at the University of Pennsylvania Department of Psychiatry and served as Clinical Director of the Child and Adolescent OCD, Tic, Trich, and Anxiety Group (the “COTTAGe”). She continues to provide training and supervision for interns, residents, and fellows at the University Of Pennsylvania School Of Medicine and the Children’s Hospital of Philadelphia (CHOP). 

Dr. Khanna has been involved in some of the most important research in the field of child anxiety and OCD in the last 15 years, including the Child and Adolescent Multimodal Study (CAMS; Walkup et al., 2008), Pediatric OCD Treatment Study (POTS II; Franklin et al. 2011), and Family-based Treatment of Early Childhood OCD (POTS Jr.; Freeman et al., 2014) trials.  

She is author of numerous research articles and chapters, and co-author with Dr. Philip Kendall of, The CAT Project, a therapist manual for the cognitive-behavioral treatment of anxious adolescents, Camp Cope-A-Lot, the first empirically-supported computer-based treatment for anxious youth, and CBT4CBT: Computer-based training for Cognitive-Behavioral Therapy for anxious youth, a computer-based training program for professionals interested in becoming proficient in CBT for childhood anxiety disorders. She has also recently co-authored a website and computer program called Child Anxiety Tales for parents of anxious youth at  She also conducts CE (continuing education) workshops and trainings for a wide range of professionals and routinely presents at national scientific meetings and conferences.

Dr. Khanna completed her doctoral degree at Temple University under the mentorship of Dr. Philip Kendall, clinical internship at UCLA under the direction of Dr. John Piacentini, and NIH-sponsored fellowship at Columbia University, College of Physicians & Surgeons, under the direction of Dr. Anne Marie Albano.

New Patients queries, please email:

Existing Patients: to schedule, reschedule, or cancel an appointment with Dr. Khanna, please visit the scheduling platform on my website:

Visit to learn more about Dr. Khanna.

Carrie L. Potoff, MSW, LCSW

484.530.0778, extension 5

Carrie Potoff is a Licensed Clinical Social Worker who joined the Center in 2017.  Before relocating to the Philadelphia area, she was a clinician at Yale University in the Department of Psychiatry.  While at Yale, Carrie was involved with various State funded clinical and research studies focusing on children/families involved in the legal system.  She also had a small private practice on the Connecticut shoreline working with children and adolescents experiencing various forms of anxiety and mood disorders.

Carrie is a Certified Cognitive Behavioral Therapist through the Academy of Cognitive Therapy (ACT), with extensive training through the Beck Institute.  Along with CBT, Carrie incorporates mindfulness/meditation and exposure response prevention (ERP) into her treatment planning.  Her client population consists of children, teens and young adults experiencing the following:

  •  Generalized Anxiety
  •  Obsessive Compulsive Disorder
  •  Depression
  •  Separation Anxiety
  •  Social Anxiety
  •  Panic Disorder
  •  Specific Phobias
  •  Perfectionism
  •  Tic Disorders


She also has a vested interest children/adolescents involved in highly competitive sports, as well as kids managing co-morbid medical conditions such as inflammatory bowel diseases and various childhood cancers. 

Carrie earned her Masters of Social Work (MSW) degree from the University of  Michigan in Ann Arbor, MI.  Following her graduate training in psycho-oncology at the Children’s Hospital in Detroit, Michigan, she was an inpatient clinician at  Georgetown University Hospital where she provided intensive inpatient and outpatient psychotherapy for children diagnosed with chronic illnesses who oftentimes struggled with anxiety and/or depression.  

In utilizing an evidenced-based, holistic, collaborative approach, Carrie has assisted clients and their families set and achieve short and long term goals, develop effective coping skills, build confidence and self esteem, manage stress, create and nurture positive relationships, as well as regulate mood and overcome annoyingly troublesome anxiety.  During your treatment (if you like dogs), you may even see Carrie’s best buddy Henry from time to time who is currently training to become a certified therapy dog!

Please email Carrie at for further information or to request an appointment.


Making an appointment

Appointments are individually scheduled by each therapist.New patient appointments and evaluations and therapy sessions for children, adolescents, and adults must be arranged by contacting the therapist directly at the indicated phone number or email address provided within the therapist’s profile.


Billing and Fees:

*Dr. Chansky, Dr. Siqueland, Dr. Ledley, Dr. Baxt, Dr. Khanna and Carrie Potoff’s clinical practices are all fee-for-service practices. All billing is coordinated by and payment is made to each individual therapist. Please ask your therapist directly about fees for services. All fees are due at time of service.



None of the therapists accept insurance or are currently on any insurance panels. Please contact your insurance company to discuss eligibility for out-of-network reimbursement for mental health services. Dr. Chansky, Dr. Siqueland, Dr. Ledley, Dr. Baxt, Dr. Khanna and Carrie Potoff’s practices are all fee-for-service practices. The therapist with whom you are meeting can provide necessary documentation to submit for out-of-network insurance reimbursement.



Appointments are individually scheduled by each therapist. New patient appointments and evaluations and therapy sessions for children, adolescents, and adults must be arranged by contacting the therapist directly at the indicated phone numbers provided within the bios below.

If you are interested in setting up an appointment or getting more information, please contact one of the therapists at their extension listed below, or you can leave your information at our main mailbox if you are unsure of how to proceed. Please note, if you leave a message in the mail mailbox, you may experience a longer wait-time than if leaving a message directly with a therapist.

Kindly take a moment to consider how you will remember your scheduled appointment day; you may wish to jot a reminder on your calendar.


Appointment Availability:

The therapists all have different schedules and also have varying levels of availability given their current caseload. Most appointments are offered during the 9-5pm hours with some therapists offering evening hours. It would be best to read the bios carefully to determine which therapist(s) would be a good fit for your current needs. Contact the therapist directly via email or phone as specified in their bio and schedule directly. If the scheduling is difficult due to availability, the therapist will be able to help you proceed with other appropriate options.


Choosing a therapist that is right for you

We recommend carefully reviewing the bios of all of the therapists in the Therapist Profiles section and consider your current needs and their experience and expertise when selecting the best fit. Contact the therapist via email or phone as listed on their bio. They will speak with you to discuss your needs and determine if they are the right fit. They will also be able to help you proceed if they feel another option would be more appropriate.

Please note, The Children's and Adult Center for OCD & Anxiety is not a group practice, but an office where individual private practice providers with specialized expertise in OCD and anxiety disorders across the lifespan practice.

If you are looking for more detailed informationabout anxiety disorders and treatment, please visit our educational website:


Address :

Children's and Adult Center for OCD & Anxiety*
3138 Butler Pike, Suite 200
Plymouth Meeting, PA 19462

Dr Ledley sees patients in Narberth, PA, convenient to the Main Line suburbs of Philadelphia
915 Montgomery Avenue, Suite 209
Narberth, PA 19072
Fax: 484-530-0998



The most complicated part of finding us is identifying our Center from the street from the first time because it is a residential building of white stucco with brown shutters (see the photo above). There is a post and rail fence out front and a small wooden sign with our address 3138 Butler Pike. There is no sign saying Children’s Center from street or identifying it as a business location. After locating us the first time, it will be easy. Go slow once you turn onto Butler Pike. Park anywhere there is a free space in the large lot.

Go in the door marked Children’s Center for OCD and Anxiety and go up the stairs. At the top of the stairs, go thru the right side door to this 2nd floor waiting room. Take a seat in the waiting room. Your therapist will greet you there.

From PA Turnpike East and West

Take Norristown exit. After toll booths, bear right to Plymouth Meeting and Germantown Pike East. After ramp, get in left lane. Turn right at the second light (Butler Pike- Plymouth Meeting Friends School on corner). Turn left into the first full driveway.

From Blue Route and Main Line

Take exit 19, Germantown Pike East. Stay in right lane, turn right at first light, onto Germantown Pike. Turn right at the next traffic light (Butler Pike- Plymouth Meeting Friends School on corner). Turn left into the first full driveway.

From Chestnut Hill

You can take Germantown Pike to the intersection with Butler Pike. Alternatively, take Bethlehem Pike to Stenton Ave west. Go thru 2 lights, and turn left at the 3rd light (Flourtown Rd). Bear right at the next intersection, continuing on Flourtown Road. At next traffic light, turn left (Joshua Road). Turn right at next light (Germantown Pike). From either route, at the light turn left (Butler Pike- Plymouth Meeting Friends School on corner). Turn left into the first full driveway.