Meet our Healthy Kids bloggers
To provide you with the timely, credible, in-depth resource you need to raise a healthy family, we have been growing our panel of bloggers to include pediatric experts from around the Philadelphia region. Here is a quick look at our regular contributors, beginning with the editor.
Meet our Healthy Kids bloggers
Anna Nguyen, Healthy Kids blog Editor
To provide you with the timely, credible, in-depth resource you need to raise a healthy family, we have been growing our panel of bloggers to include pediatric experts from around the Philadelphia region. Here is a quick look at our regular contributors, beginning with the editor. Stayed tuned for even more.

Anna Nguyen, the Healthy Kids blog editor, is a health freelance writer and was a former reporter at the Courier Post and Burlington County Times in South Jersey. She has written about various health topics for publications and Websites, including the Philadelphia Inquirer and WebMD, and health-related research for Temple University, University Communications. She has a master's degree in health journalism from the University of Minnesota. Her two energetic girls - ages 1 and 3 - keep Nguyen busy on her toes.
Stephen C. Aronoff, M.D., M.B.A., is the Waldo E. Nelson Chair of the Department of Pediatrics and a professor at Temple University School of Medicine. He received his medical degree from the University of Pittsburgh and is board certified in pediatrics and pediatric infectious diseases.
Christopher C. Chang, M.D., Ph.D., is division chief of the division of pediatric allergy/immunology at Nemours/Alfred I. duPont Hospital for Children, and clinical professor of pediatrics at Jefferson Medical College. He received his medical degree from the Georgetown University Medical School. He completed an internship and residency in pediatrics at the Children's Hospital of Los Angeles and a fellowship in allergy and immunology at the University of California.He has a particular interest in food and environmental allergies and bone immunology.
A recipient of a National Science Foundation Fellowship award, Dr. Dahlsgaard is a frequent lecturer and guest speaker and has published widely in scientific journals and books on the topics of child development, psychopathology, mental health, and human virtue. She was formerly Assistant Professor of Psychology at the Chestnut Hill College School of Professional Psychology and has taught undergraduate and graduate level courses on human development, child psychopathology, and cognitive-behavioral interventions. At CHOP, she trains the psychiatry fellows in cognitive-behavioral techniques and supervises their CBT cases.
Katherine K. Dahlsgaard, Ph.D., is lead psychologist at the Anxiety Behaviors Clinic at the Department of Child and Adolescent Psychiatry and Behavioral Sciences at the Children's Hospital of Philadelphia. She is a licensed clinical psychologist in Pennsylvania and New York with expertise in cognitive-behavioral therapy for children, adolescents, and young adults. She specializes in the evaluation and treatment of anxiety disorders, particularly selective mutism, social anxiety disorder, obsessive-compulsive disorder, and phobias. Dr. Dahlsgaard also frequently treats children with problems that commonly present with anxiety, such as difficulty sleeping alone and food selectivity.
Garry A. Emmett, M.D., F.A.A.P., has been a primary care pediatrician in South Philadelphia and Center City since 1979. He is currently an attending pediatrician at Nemours Pediatrics, Philadelphia and director of hospital pediatrics at Thomas Jefferson University Hospital. Dr. Emmett has taught at Jefferson since he graduated from the medical college in 1976 and his pediatric residency in 1979 and is currently a professor of pediatrics at Jefferson Medical College of Thomas Jefferson University. He has been president of the Philadelphia Pediatric Society and is on the board of Pennsylvania Asthma Partnership and many professional organizations. He is a promoter of better health care for children with asthma and is one of the sponsors of the annual Asthma Disparities Conference in West Philadelphia. Dr. Emmett has written many research articles, book chapters and a textbook for the hospital well-baby nursery, called Field Guide to the Normal Newborn. He is married to Marianne Ruby, a gynecologist, and has four adult children, one grandchild and several more on the way. He has lived in Center City Philadelphia for four decades.
Lauren Falini is a bariatric exercise physiologist at Nemours Alfred I. duPont Hospital for Children in the weight management program. She specializes in fitness testing and exercise prescription for adolescents receiving weight loss surgery. Lauren’s focus is on exercise counseling for obese children and their families. Lauren is also the program director of Camp Xperience, a sleepover summer camp for overweight children. She developed the camp program and has successfully directed it for the past 5 years. Lauren received her bachelor’s degree in exercise science at West Chester University, where she is also currently completing her thesis for her master's degree in exercise science. Lauren is a mother of three young children and understands the busy lifestyle of work, school, and family. Her passion is in helping children and families become more physically active and helping them find activities that they will love doing together, that fit into their life.
Hazel Guinto-Ocampo, M.D., is the chief of pediatric emergency services at Bryn Mawr Hospital, and has 18 years of experience in the field of pediatric emergency medicine. She is board certified in pediatrics and pediatric emergency medicine and is a fellow of the American Academy of Pediatrics. Guinto received her medical degree from the University of the Philippines and completed her residency and fellowship in pediatrics at the Albert Einstein College of Medicine in Bronx, N.Y. Previously, she served as the director of the Pediatric Emergency Department at Temple University Children’s Medical Center and as a member of the pediatric emergency medicine faculty at Nemours/Alfred I. duPont Hospital for Children. She has authored chapters in pediatric emergency medicine textbooks and is a regular speaker in national and regional pediatric emergency medicine conferences. Guinto has three children.
Rima Himelstein, M.D., is a Crozer-Keystone Health System pediatrician and adolescent medicine specialist. Dr. Himelstein earned her medical degree from the University of Pennsylvania and completed her residency and fellowship at Mount Sinai Hospital in New York. She is board-certified in adolescent medicine. In addition to seeing patients at Crozer-Chester Medical Center, Dr. Himelstein is one of the founders of Crozer-Keystone’s “Tots to Teens” program, which focuses on gynecologic health for teen and preteen girls. She also operates a school-based health center within the Chester Upland School District in Chester and has been involved with Crozer-Keystone’s award-winning Wellness Center program, which oversees a range of youth development programs within the district. She has been named a “top doc” by Philadelphia magazine several times.
W. Douglas Tynan, Ph.D., joined Nemours/Alfred I. duPont Hospital for Children in 2001 as a clinical psychologist and currently serves as chief psychologist with Nemours Health and Prevention Services, and associate professor of pediatrics at Jefferson Medical College. A graduate of Boston University, Dr. Tynan earned his master’s degree in psychology at the University of Connecticut and his Ph.D. at Binghamton University. He is a licensed psychologist in Delaware and Pennsylvania, a fellow of the American Psychological Association and a member of the Delaware Psychological Association. Dr. Tynan is an associate professor of pediatrics at Jefferson Medical College and a senior fellow in the Thomas Jefferson University School of Population Health. He serves on Delaware’s Early Childhood Council, the Head Start Partners in Excellence Program and the Professional Advisory Board of the Delaware Epilepsy Foundation. He is an associate editor of the Journal of Pediatric Psychology.
Beth Wallace, a registered dietitian at the Children's Hospital of Philadelphia, has more than six years of experience in providing nutrition care for children and adolescents. She earned her degree in dietetics from the University of Connecticut in 2005, and has worked with Parenting magazine, Girls' Life, and Eat This Not That! For Kids! as a nutrition consultant. She is originally from upstate New York, but fell in love with Philadelphia and quickly made it her home.



