Weiser & Associates  

Madeleine Weiser M.D., FAAP

     Dr. Weiser, well known to most as Dr. Maddy, has been a practicing pediatrician for over 25 years.  She attended the University of Pennsylvania for her undergraduate studies.  She completed her medical schooling at MCP Hahnemann University School of Medicine in 1978.  She concluded her internship and residency at The Cooper Medical Center in Camden, New Jersey.  Dr. Weiser's career began in 1982 when she was the Associate Professor of Pediatrics at the Cooper Medical Center.  She went into private practice in 1985 where she has successfully built a flourishing practice which began in Havertown, Pennsylvania. 

     Dr. Maddy is married with three children.  She and her husband have devoted their lives to children in many different ways.  They run an overnight camp for boys and girls in Schwenksville, Pennsylvania called Camp Kweebec.  In 2005, they also created a state-of-the-art youth fitness gym, Youth Movement Fitness in Bryn Mawr, Pennsylvania. 

     Dr. Weiser's special interests are diabetes, nutrition and ADHD.

Elizabeth Robinson M.D., FAAP

     Dr. Robinson joined Weiser & Associates in March 2004.  She began her education at the State University of New York (SUNY) in Stony Brook, New York and received her medical degree at SUNY Downstate in 1990. Dr. Robinson did her Pediatric internship and residency at the University of Miami/Jackson Memorial Hospital and was Chief resident and Clinical Instructor of Pediatrics. She has received numerous teaching awards and has taught pediatrics at Alfred I. duPont Institute.  She has also instructed medical students from the University of Pennsylvania. Dr. "Liz" has been a practicing pediatrician for over 14 years. 

      Dr. Liz is married to Dr. Bradley Robinson, a pediatric cardiologist at Alfred I. duPont Institute in Wilmington, Delaware.  They live in Wynnewood and  have four young boys that keep them both very happy and busy! 

     Dr. Robinson's special interests are pediatric preventive medicine and rheumatology.

Louis Giangiulio M.D., FAAP

     Dr. Giangiulio, also known as Dr. G,  joined Weiser & Associates in 2005 after six years as an Army pediatrician, including a nine month deployment to Afghanistan in support of Operation Enduring Freedom.  He grew up in Wayne, PA and is a graduate of Malvern Prep.  He did his undergraduate work at The Johns Hopkins University and received his medical degree from Jefferson Medical College in Philadelphia in 1999.  Dr. Giangiulio completed his internship and residency in pediatrics in Washington DC at Walter Reed Army Medical Center and the National Naval Medical Center in Bethseda, MD.  He was stationed for three years at the US Military Academy at West Point, NY as a general pediatrician where he also consulted as the wrestling team physician. 

     He currently serves as the school physician for the Penn-Delco school district.  He is a member of the American Academy of Pediatrics and has served as teaching faculty in Pediatrics for the Uniformed Services University of the Health Sciences.

     Dr. G is married and has four young children.  His professional interests include infectious diseases and sports medicine.  He enjoys running, cycling and playing the accordion (when his wife allows it!).

Jen Teng M.D., FAAP

     Dr. Teng joined the practice in February 2007.  She obtained her undergraduate degree at Brown University.  After graduation, she spent a year volunteering with AmeriCorp in Peekskill, NY.  She received her medical degree at the University of Connecticut.  She completed her internship and residency at St. Christopher's Hospital for Children in Philadelphia, PA.  After residency, she was practicing in Northeast Philadelphia before joining Weiser and Associates. 

     Dr. Jen currently lives in Philadelphia and enjoys playing the piano and cooking.  She is fluent in Spanish and (Mandarin) Chinese.

All of our physicians are Pediatric Board Certified.  You can read further information on each individual on this page. 

Please contact our office if you have any further questions regarding our doctors.  You may also use the "Contact Us" section of our website for further information.