Frequently Asked Questions

Do you see adults?

Yes! The Armellino Center of Excellence for Williams Syndrome is a collaboration between the Children's Hospital of Philadelphia and Penn Medicine geared at providing care across the lifespan. Read more about our Clinical Program. 

Do you accept my insurance? 

Accepted plans can vary by provider, as well as between Penn Medicine and the Children's Hospital of Philadelphia. To determine if your specific insurance is accepted, we recommend checking with your insurance provider for the most accurate coverage details. Additionally, you can contact the Penn Medicine or CHOP Financial Counseling teams directly to help clarify any specific questions. 

Who do I contact if I have questions?

For non-clinical questions please call our program coordinators. If you are an existing patient and have a question related to your care, please contact your provider via a myCHOP or myPennMedicine message, or by calling their clinic. 

How do I establish care with ACE-WS? 

If you are a new patient to the Children's Hospital of Philadelphia or the Penn Medicine network, please start by completing our Clinic Planning Intake Form. After reviewing your information, our team will develop a care plan, which our program coordinators will discuss with you when arranging your appointment date(s). Existing patients should contact our team. Please visit our Getting Started page to learn more about the process.

How do I cancel or reschedule my appointment? 

To cancel or reschedule an appointment with Dr. Matt Demcko, please contact us by sending a message via myCHOP, (which is preferred) or by calling 888-722-3497. For all other providers, kindly reach out to the phone number associated with their respective specialty clinics or send a myCHOP or myPennMedicine message to their department staff.