Kristen Nasto, MD Kristen Nasto, MD, is a Pediatrician at CHOP Primary Care, South Philadelphia, a CHOP Care Network pediatric and adolescent care practice. Areas of Expertise: Pediatric Primary Care Locations: Primary Care, South Philadelphia Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467) Education and Training Medical SchoolJohns Hopkins School of Medicine, Baltimore, Md. ResidencyPediatric Residency The Children's Hospital of Philadelphia, Philadelphia, Pa. Board CertificationAmerican Board of Pediatrics Titles and Academic Titles Attending Physician 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.