About Us


Weiss Pediatric Care is dedicated to helping parents raise healthy kids through a new approach to medical care that is family focused, developmentally oriented, and prevention based.

All families deserve a medical “home” for their children where they can receive state-of-the-art medical care, as well as, parenting and developmental guidance at every visit, and where children and parents are always treated with respect and compassion.

Our Guiding Principles…

• Promotion – support children’s over-all health and well-being by providing state-of-the art medical, parenting and developmental guidance.

• Prevention – keep children physically healthy and developmentally on target through regular well-child check-ups, routine developmental screenings, and referral to specialists when necessary

• Intervention – provide treatment that is consistent with the American Academy of Pediatrics guidelines, and the highest standards of medical care.

Call us for an appointment today: 941-552-8341


Our Team

Dr. Robert Weiss


Nationally recognized as a top doctor in Pediatric and Adolescent Medicine for over a decade, Dr. Weiss is now bringing his 34 years of pediatric care experience in Sarasota County to his role as primary physician at Weiss Pediatric Care. He provides patients with check-ups, treatment, recommendations, referrals and more. Beyond just treating illness, Dr. Weiss builds partnerships with parents in their children’s healthy development by emphasizing preventative health care, detailed treatment plans, the proper use of antibiotics and other medicines, medical management of acute and chronic conditions, and education.

Diane Weiss

Parenting Specialist

Diane Weiss, M.S. is the practice’s Child Development and Parenting Specialist with over 30 years as a leading expert in the field. Diane is a co-founder of Forty Carrots Family Center and the founder of Parenting Works, LLC (a parenting consultation firm) based in Sarasota County. Diane partners with Dr. Weiss on well-child visits to address caregivers’ parenting concerns and discuss their children’s development. She provides routine developmental screenings with children birth to five, offers individual parenting consultations, and parent support groups. Diane also manages the developmental and parenting information phone line.

Alison Griffin, A.P.R.N.

Board Certified Pediatric Nurse Practitioner

Alison Griffin brings to her work as a Board-Certified Nurse Practitioner over eleven years of experience as a Pediatric Intensive Care Nurse at John Hopkins All Children’s Hospital. She is passionate about caring for children in our community and beyond. Ali participates in medical mission trips throughout the United States and the Dominican Republic. She and her husband have three busy school-aged children. They are an outdoors family who enjoy the beach, sports, and (most recently) kayaking.

Stacie Olivarri, A.P.R.N.

Board Certified Pediatric Nurse Practitioner

Stacie hails from Saint Louis, Missouri with a Master of Science degree in Nursing, Pediatric Primary Care Nurse Practitioner. She has extensive experience as a Pediatric Intensive Care Nurse, first in the Special Care Unit at Children’s Hospital of Alabama, and then in the Pediatric Intensive Care Unit at Saint Louis Children’s Hospital. Stacie loves working with kids because of their resiliency, personalities, and their ability to make her smile. She says that Weiss Pediatric Care’s commitment to helping children maintain healthy lives is exactly what she hopes to do through her work as a nurse practitioner. Stacie and her husband enjoy watching baseball and hockey, exploring new places to eat in Sarasota and going to the beach. They are proud puppy parents to Oliver, a miniature schnauzer, and Ellie a chocolate lab.

Erin Gennocro, A.P.R.N.

Board Certified Family Nurse Practitioner

Erin joins our family with 15-years of experience as a Board-Certified Family Nurse Practitioner specializing in Pediatrics. She graduated with honors with her MSN and FNP degrees in 2004 from Valparaiso University, in Valparaiso, Indiana. She is an active member of the National Association for Pediatric Nurse Practitioners and the Sarasota Chapter of the Florida Nurse Practitioner Network. Erin is passionate about building relationships with families, promoting and encouraging a healthy lifestyle, and caring for children of all ages. This is why she truly loves pediatric primary care. Erin and her husband have a blended family of four beautiful children ranging in ages from 10-21 that keep them on their toes…mission trips, college, baseball, and a multitude of other sports and activities.

Rosemary DeMarco, LPN

Clinical Nurse Care Coordinator

Rosemary DeMarco, LPN is the practice’s Clinical Nurse Care Coordinator and Certified Breast Feeding Counselor. Rosemary has worked as a pediatric nurse for nearly 30 years. In that time, she has become legendary among both patients and physicians for her warmth, sensitivity, and skill. Rosemary views her work with children and families as a privilege and a calling, She is committed to personal and professional growth, constantly striving to make her already exceptional work better and more comprehensive. Along with interacting with Rosemary in her role as Clinical Nurse Care Coordinator, Weiss Pediatric Care patients with newborns will also benefit from her knowledge and experience as a Certified Breast Feeding Counselor.

Giselle Jaimes, CMA

Certified Medical Assistant

Giselle Jaimes joins Weiss Pediatric as a Certified Medical Assistant. This Florida girl has six siblings, all boys! Needless to say, her patience level is one we all strive to attain. Giselle brings with her a level of calm that makes every family breathe a little easier. Her love for children, compassion, and kindness shines through in everything she does. With several years of experience in Pediatrics and the qualities that Weiss Pediatric Care nurses are known for, Giselle is a wonderful addition to our team.

Ashley Weidner

Front Office Manager

Ashley is our Front Office Manager and brings with her four years of medical practice leadership in not only patient management, but marketing as well. Her love of children starts with her adorable son, Luke, and shines through in her volunteer work with children each weekend through her church. Her professional skills combined with her compassionate heart make her the perfect fit for our loving team at Weiss Pediatric Care. Ashley will be your first point of contact at the office and will strive to provide the best care possible for your little ones.

Marisa Smith

Front Office Coordinator

Marissa is our sunshine at the front desk and brings with her more than 10 years’ experience in the medical field to make sure that everyone that comes in is taken care of with the highest level of care. Marissa loves children and has two of her own.. She is a Florida girl and has a love of animals that she carries over into her mini farm in Myakka complete with horses, cows and even bunnies! Her attention to detail and ability to complete the most tedious of tasks is the perfect Yin to Ashley’s Yang as they work together to keep the ship moving. You can expect to see her smiling face at the front as she takes the hot seat to help keep your little ones smiling and healthy!

Mirine Dye

Lactation Consultant

Mirine is an International Board Certified Lactation Consultant, and former Chair of the Breastfeeding Committee with the American Public Health Association. She has a background in public health and community education and has worked with mothers and babies in Florida hospitals, clinics and health departments since 1997.

Elliot Weiss, PhD

Pretty, Hypollergenic Dog

In Loving Memory

Although originally from Kentucky, Elliot (a goldendoodle) has been a member of the Sarasota community for most of his life. Working alongside Dr. Weiss, Elliot has helped demonstrate the benefits of pet therapy through his in-depth research at places like parks, the Sarasota Farmer’s Market, and restaurants with outdoor seating, Elliot’s role as a certified therapy dog is in keeping with his lifelong ambition of bringing joy to children and families. Elliot has been instrumental in the development of Weiss Pediatric Care, often taking Diane and Dr. Weiss on long walks to discuss the finer points of the Pediatric Medical Home model and also to smell trees. Elliot’s passion for Weiss Pediatric Care is matched only by his love of cream cheese. He has no doubt patients will come to share his enthusiasm.

In the News...



“Bringing together the skills of Dr. Weiss’ excellent pediatric medical care and Diane’s parenting guidance truly is every parents dream and a wonderfully unique approach to the delivery of pediatric care in our community.”

“From the moment Dr. Weiss visited Anna and I after delivery, I knew she was in the best hands. The staff was extraordinary, from Kerri’s friendly welcome, to nurses like Rosemary, who would even call me on her day off. If she didn’t know the answer, she would find it out for me. She provided invaluable guidance through my breastfeeding stage and her compassion and caring always put me at ease. Dr. Weiss’ extensive knowledge, wisdom, calm demeanor and sure-handed approach always put us at ease and made us feel lucky to have him as our pediatrician.”