Cedarhurst Office
571 Chestnut Street
Cedarhurst, NY 11516
(516) 569-2250

Franklin Square Office
340 Dogwood Ave
Suite 103
Franklin Square, NY 11010

(516) 486-5852

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Office Hours 

Cedarhurst Office

Monday:      9:00 AM- 8:00 PM
Tuesday:     9:00 AM - 8:00 PM
Wed.:          9:00 AM - 8:00 PM
Thursday:    9:00 AM - 8:00 PM
 Friday:        9:00 AM - 5:00 PM
Saturday:    No regular hours
Sunday:      9:00 AM - 2:00 PM

Franklin Square Office

Monday:      9:00 AM - 8:00 PM
Tuesday:     9:00 AM - 8:00 PM
Wed.:          9:00 AM - 8:00 PM
Thursday:   9:00 AM - 8:00 PM
Friday:        9:00 AM - 5:00 PM
Saturday:    No regular hours
Sunday:   Office hrs in Cedarhurst

Patient Resources

An online resource center providing you with additional helpful information.

Meet our team at Long Island Pediatric Group! Please take a few moments to learn about our skilled practitioners and our friendly, nurturing staff.

At Long Island Pediatric Group, we consider it both a great joy and responsibility to care for children. Most of us are parents ourselves, so we strive to be understanding and available to the families we are privileged to serve. We are honored that you have chosen us as your child's primary medical provider and are confident that you will be pleased with the quality of care and service that we can provide you and your family.

A vital part of our service to children begins with our outstanding staff who works hard to manage and maintain a professional, caring and supportive environment for our patients in a timely manner. Our doctors are lifelong learners. Not only have they received advanced medical training in pediatrics, they continually pursue ongoing education to stay abreast of the latest in child health care.

Your child's health is as important to us as it is to you. We look forward to providing you with excellent medical care your child deserves.


Dr. Joseph  Rozenbaum, M.D., FAAP

“Dr. Joe” is a board certified pediatrician who completed his residency at Long Island Jewish Hospital after completing medical school at Suny Downstate Medical Center in Brooklyn, New York. After finishing his residency he went on to be the head of the Pediatric out patient clinic at St. John's Medical Center.  He is one of the founding partners of Long Island Pediatric Group and has been in private practice for 25 years.  He lives with his family in the Five Towns area.

Dr. Steven Kellner, M.D., FAAP

Dr. Steve is one of the founders of Long Island Pediatric Group. He graduated from medical school in 1988 fromThe Sackler School of Medicine/American Program of  Tel Aviv University. He completed his internship and residency at North Shore University  Hospital. He went on to a teaching position at St. John's Episcopal Hospital with the title of Clinical Associate Professor at Cornell University. Dr. Steve's mission is  to help all children and their parents lead healthy and happy lives. He lives locally and is very active and involved in the  community and it’s schools.  

Dr. Marie Schroeder, M.D., FAAP

Dr. Marie Schroeder has been an integral part of Long Island Pediatric Group since 1995. "Dr. Marie" is a board certified pediatrician and a fellow of the American Academy of Pediatrics.  She received her medical degree from UMDNJ-Robert Wood Johnson Medical School and her undergraduate degree from New York University.  She completed her residency at the NSLIJ-Cohen's Children's Medical Center where she also served as the Chief Resident of the Department of Pediatrics.  Dr. Marie lives with her family in Garden City.

Dr. Evan Pockriss, M.D., FAAP

"Dr. Evan", is a graduate of New York Medical College, a board certified pediatrician, and Fellow of the American Academy of Pediatrics.  He completed his Pediatric Residency at North Shore University Hospital where he was Chief Resident in the Dept. of Pediatrics.  Dr. Evan enjoys general pediatric medicine, with special interests in pulmonolgy, motility disorders and the care of children with chronic illness / disabilities.  He lives with his family in the 'Five Towns' community and his hobbies of sports, photography, gardening, etc. is limited due to his rambunctious yet adorable children.

Dr. Stuart Schiff, DO, FAAP

Dr. Stuart Schiff completed his undergraduate training at Emory University and went on to graduate from the New York College of Osteopathic Medicine in 1991.  He finished his medical training at Schneider’s Children Hospital at Long Island Jewish Medical Center in 1995, and has since been in private practice.  Dr.Schiff is board certified by the American Academy of Pediatrics and a Fellow of the American Academy of Pediatrics.

Dr. Andria Chizner, M.D., FAAP

Andria Chizner, MD, is a board certified pediatrician and member of the American Academy of Pediatrics.  She received her medical degree from SUNY Upstate Medical Center in 1994.  She then completed a pediatric residency at New York Presbyterian Hospital/Cornell Medical Center, and then was chosen to stay on as pediatric chief resident.  Following that, she practiced general pediatrics on Long Island for four years and then returned to Cornell Medical Center where she supervised residents and worked in a Family Health Center.  In 2006, Dr.Chizner joined Long Island Pediatric Group where she continues to practice general pediatrics.

Dr. Jessica Kirschner, M.D., FAAP

Dr. Jessica L. Kirschner received her medical degree from the Albert Einstein College of Medicine, where she received the Alumni Scholar Award in recognition of her academic achievements. Dr. Jessica completed her pediatric residency at Northshore-LIJ. She is board certified in Pediatrics and a fellow of the American Academy of Pediatrics. Dr. Jessica has a special interest in nutrition, exercise, and weight management, which began during her undergraduate education at the University of Pennsylvania. Dr. Jessica lives in Woodmere with her husband and three young children and is involved in the local schools and charity organizations. Dr. Jessica enjoys spending time with her family, playing tennis and baking. She also speaks fluent Spanish.