Mariel Nasis-Matuza, MS, RN, CPNP

Functional Medicine Pediatric Nurse Practitioner—Works primarily with children with Autism and developmental delays

Mariel Nasis-Matuza, MS, RN, CPNP

Contact Info


Pediatric Health Care

Neurodevelopmental Treatment

Mariel Nasis-Matuza, MS, RN, CPNP, provides functional medical care for pediatric patients. She works primarily with children challenged with Autism and developmental delays. Mariel's goal is to assist parents in helping their child achieve and maintain optimal health.

“Meeting families ‘wherever they are’ on their journey can be challenging at times, but once parents ‘get it,’ it truly is a job well done to see them feel empowered!” — Mariel Nasis-Matuza, MS, RN, CPNP

Specializing in integrative and functional medicine, Mariel thinks outside of the box and looks for root causes of illnesses and health challenges. In order to provide the best care for your child, Mariel treats the whole child, not just the symptoms. A large part of her interactions with parents focus on diet and nutrition, emphasizing the body-mind-spirit connection.

Pediatric Health Care with Mariel
As a certified pediatric nurse practitioner, Mariel is uniquely positioned to offer varied treatments for patients based on individual needs. After taking a thorough medical history, doing a complete physical exam and interpreting lab work, recommendations may include a combination of dietary changes and supplementation. In addition, other modalities such as intravenous (IV) therapy, hyperbaric oxygen therapy, infrared sauna and neurofeedback are also available. When appropriate and if needed, pharmacological treatments/prescriptions can be ordered.

Mariel's philosophy on health and wellness is "Let food be thy medicine, and medicine be thy food." ~Hippocrates


Pediatrics has always been a passion of Mariel's. Following the birth of her 4th son,  she returned to school for her second undergraduate degree and received her degree in Registered Nursing from Farmingdale State University. She continued her education, earning a Master of Science from Stony Brook University and earned certification from the Pediatric Nursing Certification Board (PNCB). She had the privilege of caring for the most acute children in the Pediatric Intensive Care Unit (PICU) at Winthrop Hospital (now NYU Langone).

Mariel has also cared for complex, medically fragile children in long-term care facilities in Queens and Yonkers. She has embraced the holistic approach in healthcare, treating the whole child. She enjoys empowering and educating parents so they can be their child's best advocate!

Caring for her patients and their families is a priority for Mariel. So is giving back. As treasurer for the Fairy Godmother Foundation of NY, a non-profit organization founded in loving memory of one of her patients, Mariel is honored to serve on a board with members dedicated to improving the quality of life of individuals living with medical, physical, mental health or developmental challenges, as she aims to help make dreams come true!

In addition to serving on the board of the Fairy Godmother Foundation, Mariel has also served as President of the Long Island Chapter of the National Association of Pediatric Nurse Practitioners (NAPNAP), as well as Flotilla Staff Officer of the United States Coast Guard Auxillary.

Office hours: Northport Wellness Center - Mondays & Fridays, 8am - 6pm
Alternating Saturdays, 8am - 2pm

Concierge and tele-health appointments available upon request

Social Media: FB: Mariel Nasis-Matuza, CPNP, Integrative Pediatrics
IG: @marielnp_integrativepeds

Contact Mariel today!

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