Children's Physicians is proud of its role as the first pediatric practice in northern Palm Beach County. Founded in 1961 by Dr. John S. McRoberts and Dr. Michael L. Steiner, the practice was initially called North Palm Beach Children's Clinic. In 1975, the office moved to its current location in Palm Beach Gardens and once the practice expanded and added two additional locations in Jupiter and Palm City, the practice name was changed to Children's Physicians. All of the physicians in the practice are board certified by the American Board of Pediatrics and are fellows of the American Academy of Pediatrics. The credo of Children's Physicians has always been to offer professional and compassionate pediatric care in a pleasant and non-threatening environment. The practice places emphasis on continuing medical education through seminars and pediatric educational meetings both in the United States and abroad.
At Children’s Physicians, 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 care provider and are confident that you will be pleased with the quality of care that will be provided to you and your family.
A vital part of our service to children begins with our outstanding staff who works hard to create and maintain a professional, caring, and supportive environment for our patients and their families. At Children's Physicians, our doctors and nurse practitioners are lifelong learners. Not only have they received advanced medical training in pediatrics but they also 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 pediatric care in the Palm Beach Gardens, Jupiter, and Palm City areas.
Please take a few moments to meet our team at Children's Physicians and learn about our skilled practitioners as well as our friendly, nurturing staff.
Dr. Lynda Bideau has been practicing at Children's Physicians since 1989. She graduated from The Medical College of Pennsylvania and did her residency at Hahnemann University in Philadelphia, PA. In addition to receiving first place for the Palm Beach Post's Best of Palm Beach County Pediatrician in 2019, 2021 and 2022, she was named a Top Doc in the Jupiter Magazine 2020 and 2021. She is the mother of two adult children, Jacki and Matt, and has five grandchildren. Her husband, Mark, is an attorney in West Palm Beach. Besides her work, she enjoys spending time watching her favorite teams, the Miami Heat, the Dolphins, and the Marlins.
Dr. Luis Pineiro has been practicing pediatrics and adolescent medicine for over 20 years in beautiful south Florida and all of his years in practice have been with Children’s Physicians. He spent 3 years completing his pediatrics residency at Akron Children’s Hospital in Northeast Ohio after finishing his clinical externship rotations in Miami, FL. The next 2 years were spent at the University of Maryland where he did a fellowship in adolescent medicine and worked as an assistant professor of pediatrics. In 1993, he and his spouse moved to Palm Beach Gardens and started a family.
Dr. Alexandria Niewiadomski-Ayala was born in Ponce, Puerto Rico. She completed her medical school training at Ponce School of Medicine in Puerto Rico and did her pediatric residency training at Tulane School of Medicine in New Orleans, LA. She is a board-certified pediatrician and has been practicing at Children’s Physicians since 2002. She is currently married to Dr. Ricardo Ayala and has two daughters, Natalia and Tatiana, and a dog named Banjo.
She enjoys spending time with her family, cruising on their boat, and practicing yoga.
She is fluent in Spanish and English. Hablo Espanol.
Shirley StickleM.D., MPH, FAAP
Dr. Shirley Stickle is originally from Boston, MA but traded in the ski slopes and traffic jams for sunnier skies and scuba diving. After graduating from the University of Pennsylvania in Philadelphia, She attended the University of Pittsburgh School of Medicine and completed her pediatric training at Texas Children's Hospital in Houston, TX. She is an Assistant Clinical Professor of Pediatrics for the Charles E. Schmidt College of Medicine at Florida Atlantic University, serving as a teacher and mentor for medical students. Also, she currently serves on the Medical Operation Committee of the Palm Beach Children's Hospital since August 2019.
Her interests include combatting childhood obesity, adopting healthy lifestyles and developing innovative ways to get her children to eat vegetables.
She spends time with her three children, Colette, Corinne & Camille, and her husband, Robert, a radiologist. In her free time, her interests include cheering for her children's soccer and swim teams, running, swimming, traveling and anything Disney.
She is bilingual in English and Cantonese (Chinese). 我说中文.
Gay Alford NunleyM.D.
Dr. Gay Alford Nunley has been practicing in pediatrics since 1998 and joined Children's Physicians in 2006. She grew up and attended college in California. She graduated from Eastern Virginia Medical School and did her residency training at the University of Connecticut, Connecticut Children's Medical Center. She has two sons and the family enjoys swimming, fishing and snow skiing. Dr. Nunley is Board Certified by the American Board of Pediatrics and a Fellow of the American Academy of Pediatrics.
Micael St. Louis,A.P.R.N., D.N.P.
Micael St. Louis has a Doctorate in Nursing Practice and is nationally certified as a Family Nurse Practitioner. She has been actively providing direct patient care as a Pediatric Nurse Practitioner with Children’s Physicians since 2013. She received her Master's Degree in Science from Florida Atlantic University and graduated with honors with her doctorate. Micael is a member of the American Academy of Nurse Practitioners and volunteers in her community. She resides in Port St Lucie with her husband, who is a local Civil Engineer, and their two sons. Micael is caring, compassionate, and committed to the wellness of your children.
Lauren joined Children's Physicians in 2013 after graduating from FAU. She's a certified family nurse practitioner, and a board certified Psychiatric Mental Health nurse practitioner. Her interests include child & adolescent mental health disorders. In her free time she enjoys boating, FSU football, and spending time with her husband, son Ty, & their 2 dogs.
Amanda is a Certified Pediatric Nurse Practitioner. As a native of Florida, she graduated from PBSC with her AAS in Nursing in 2007. She worked at Saint Mary's Medical Center in the Pediatric Emergency Room as an RN for 6 years while she obtained her BSN from FAU in 2012, followed by her MSN at UF in 2014 (Go Gators!!). She has worked locally as a Pediatric NP for 5 years.
Amanda is married to a Firefighter with Palm Beach County Fire Rescue. She has two young children and a pup. In her spare time, Amanda enjoys boating and pool days with her family, friends, and dog.
Cristin is a board-certified Family Nurse Practitioner who grew up in Vero Beach, Florida. She graduated with her BSHS from the University of South Florida, BSN from the University of Miami, and MSN from Nova Southeastern University. She joins our practice with over four years of pediatric experience at Palm Beach Children’s Hospital.
In her free time, she likes spending time with her family, traveling and being physically active. She is married to her high school sweetheart, a Project Manager for a local construction company. They have one son and two dogs together. Cristin enjoys providing family-centered care to her patients and their families.
Tracy Lockett, ARNP, has her Master's Degree from Indiana University School of Nursing. She has over twenty years of experience in Pediatrics. She joined Children's Physicians in 2005 and works primarily in the Palm City office. She has been married for 14 years to her husband, Del, and they have four amazing young boys. In her spare time, she enjoys boating, fishing and cooking.
Mary Davis, DNP, APRN, FNP-BC
Mary Davis is a board certified Family Nurse Practitioner from Palm Beach County, Florida. She received her BSN degree from the University of Florida, and her MSN and DNP degrees from Florida Atlantic University. Mary joins the practice with seven years of experience as a Registered Nurse including pediatric acute care, nursing education, and critical care. Mary has worked as a Nurse Practitioner in the urgent care setting as well.
In her free time, Mary enjoys running outside, volunteering, and exploring the outdoors with her husband William. Mary is committed to providing holistic care to patients and families.
Meet the Staff
Trish, Office Administrator
Mindy, BSN, RN, Director of Nursing
Jose, Billing Manager
Palm City Office Staff
Kim, Patient Liaison
Jupiter Office Staff
Rossana, Patient Liaison
Palm Beach Gardens Office Staff
Ileana, LPN, Triage Nurse
Jenny, Billing Specialist
Keta, Referral Coordinator