Dr. Mary Sizer is a Nursing Professional Development Specialist at Children’s Hospital of Philadelphia where she has worked for almost 30 years, advancing her career from a Medical Assistant to her current status as a Doctoral Prepared Nurse. She serves as an educator, mentor, and coach for new ambulatory nursing staff and medical assistants who wish to return to school to become nurses. Dr. Sizer is also an Adjunct Clinical Nursing Instructor at Widener University School of Nursing.