Elizabeth A. Worster, MSN, RN Elizabeth A. Worster, MSN, RN, is a nurse practitioner in the Comprehensive Sickle Cell Center at Children's Hospital of Philadelphia. Locations: Main Campus Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467) Education and Training Undergraduate DegreeBSN - Villanova University, Villanova, PA Graduate DegreeMSN, Pediatric Nurse Practitioner Program - Villanova University, Villanova, PA Titles and Academic Titles Nurse Practitioner Departments and Services Sickle Cell CenterCellular Therapy and Transplant Section Patient Experience Ratings About the Patient Experience Rating System The Patient Experience Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question. Responses are measured on a scale of 1 to 5 with 5 being the best score. The comments are submitted by patients and families and reflect their views and opinions. The comments are not endorsed by and do not reflect the views of Children’s Hospital of Philadelphia.