Meet the Providers

Harriette S. Perlstein, M.D., F.A.A.P.

Meet the Providers Suwanee  Georgia  GA pediatrician Pediatrics Dr. Perlstein grew up in Cleveland, Ohio. She received her A.B. from Harvard University in 1978 and her M.D. from Case Western Reserve University School of Medicine in 1982. Her pediatric residency training was completed at Rainbow Babies and Children’s Hospital in Cleveland, Ohio in 1985. Dr. Perlstein moved to Atlanta in 1988 and has been in pediatric practice in the north Atlanta area since then. In 1998, Dr. Perlstein joined Dr. Dewling in practice at The Emory Clinic and as Instructor in the Department of Pediatrics at Emory University. She and Dr. Dewling founded Johns Creek Pediatrics in 2001. Dr. Perlstein has had the privilege of seeing many of her patients from birth through high school graduation and beyond. Dr. Perlstein serves on the board for The Childrens Health Network. She and her husband, an endocrinologist, have two sons. She enjoys tennis, swimming and music.

Karen B. Dewling, M.D., F.A.A.P.

 Dr. Dewling grew up in the Baltimore, MD area. She received her M.D. from Johns Hopkins University School of Medicine in 1990. Dr. Dewling completed internship and residency training at The Johns Hopkins Hospital in 1993. After four years in practice in Maryland, she relocated to Georgia in 1997 to serve as Chief of the Section of Pediatrics, The Emory Clinic and as Instructor in the Department of Pediatrics at Emory University. In 2001, she and Dr. Perlstein started Johns Creek Pediatrics. Dr. Dewling was named one of Atlanta's Top Doctors in the July 2007 issue of Atlanta Magazine, and every year since. Dr. Dewling has appeared on numerous health information spots on news programs nationwide. She also appears on CNN’s Accent Health, a health news program shown in physicians’ offices. She is a member of the Community Pediatrician Advisory Committee at Children's Healthcare of Atlanta, advocating for the needs of her patients and community. She was recently selected to be a member of the Physicians Leadership Council at Childrens.  Dr. Dewling is married and has a son and a daughter. She enjoys reading, yoga, horseback riding and spending time with her two golden retreivers and her family.  Top docs

Jennifer R. Looby, M.D., F.A.A.P

Meet the Providers Suwanee  Georgia  GA pediatrician Pediatrics Dr. Looby grew up in the Columbus, Ohio area. She received her BS from the University of Notre Dame in 1993 and her MD from Wright State University in Dayton, Ohio in 1997. She completed her residency at The Children’s Medical Center, now Dayton Childrens in 2000. Dr. Looby was in private practice with a large pediatric group in Ohio for nearly seven years before relocating to the north Atlanta area in March of 2007. She is married with three children. She enjoys gardening, cooking, decorating, and spending time with her family.


Jennifer Santorum, M.D., F.A.A.P.

  Dr. Santorum grew up in upstate New York.  She received her B.S. from Furman University, in Greenville, SC, and her M.D. from USC School of Medicine in Columbia, SC in 2007.  She has been practicing in the Atlanta area since she completed her pediatric residency training at Greenville Hospital System University Medical Center in Greenville, SC in 2010.  She loves building relationships with her patients and their families and partnering with parents as they help their children navigate life and grow into healthy young men and women. Dr. Santorum lives with her husband, two daughters and her son.  Her favorite activity by far, is spending time with her family.  She also likes to travel, read historical fiction, experiment with new recipes in the kitchen and paint.


Meet our Nurse Practitioners


Laura Hobbs, Nurse Practitioner, MSN, CPNP

Laura Hobbs Laura Hobbs recently moved to Georgia in 2012. She received her Bachelor of Science in Nursing at the University of Oklahoma. She started her nursing career in Indianapolis, Indiana where she was an Orthopedic Nurse, Sexual Assault Nurse Examiner, and Pediatric ER nurse. She obtained her Masters of Science in Nursing in 2012 from Indiana University in Pediatric Primary Care. Since moving to Georgia, she has worked in both primary care and emergency room settings as a nurse practitioner. She is currently the secretary of the Pediatric Nurse Practitioner Association, Georgia Chapter. She and her husband enjoy spending time with friends and family, traveling, attending sporting events and cheering for their favorite team, the Oklahoma Sooners.


Allison Stubbs, Nurse Practitioner, MSN, CPNP


Allison Stubbs grew up in Georgia and received her Bachelor of Science in Nursing from Emory University in 1997.  After five years working inpatient at CHOA at Egleston, she moved to Nashville, Tennessee and completed her Masters of Science in Nursing at Vanderbilt University in 2003. Allison has worked in various offices in the State of Georgia and recently returned to Atlanta to be closer to her family.  She spends her free time with her horse Valentine.