Jennifer Zethner, RN, MS, CPNP

Holistic Pediatric Nurse Practitioner/Holistic Primary Care

info@northportwellnesscenter.com
631.262.8505

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Biography

Jennie Zethner, RN, MS, CPNP has been working with children since 1995. She graduated with her Bachelor of Science in Nursing degree from Adelphi University in 1995 and she received her Master of Science and Pediatric Nurse Practitioner (PNP) degrees from Stony Brook University in 2000. She is certified by the Pediatric Nursing Certification Board. 

Jennie is blessed to be a mom of three children since 2002. Combined with her professional and personal experiences with children, Jennie is passionately dedicated to her privately owned unique pediatric practice; Simply Pediatrics, which is located close to her hometown. 
 
Jennie provides primary care to children ages 0-21y from a holistic perspective. At every well-child and sick visit, Jennie’s goal is to optimize your child’s health, avoiding the common obstacles that can lead to illness and including parents in the health decisions of their child. 
 
Jennie’s approach is unique. With over 25 years of experience, she can easily identify the present and potential obstacles and triggers that lead to the root causes of so many of the chronic childhood conditions we see today including colic, constipation, eczema, asthma, allergies, chronic ear infections, chronic congestion and cough, picky eaters, developmental delays, speech delays, academic issues, autism, chronic strep, anxiety, ADHD, OCD, depression, sleep issues and so on. 
 
Jennie is a member of the National Association of Pediatric Nurse Practitioners, American Holistic Nurses Association, Academy of Integrative Health and Medicine, and Holistic Mom’s Network. She is also a Simplicity Parenting-trained healthcare provider.

Jennie is deeply committed to supporting families through “The First 1000 Days" (TFOD). TFOD a global initiative to improve the health of children focusing specifically on conception until 2yo, which are the first one thousand days of a life.

Jennie offers both in-person and virtual pre-birth to 2-year-old in-depth consultations, which focus on optimizing health for the first 1000 days of your child’s life. Additionally, Jennie gives back to the community by speaking about TFOD with parents and expectant parents at a rescue mission located in her community. The optimal times to schedule an appointment would be early in pregnancy. This consultation for both mom and partner will review mom’s health, including medications, supplements, vaccines, diet, stress, emotional and physical supports; mom’s living environment including potentially toxic exposures found in the kitchen, bathroom, pets, backyard, clothing; mom’s birth plan, breastfeeding/formula, and plans for the first 3 months after birth. Follow-up visits addressing TFOD include traditional pediatric visits at the first week of life, then at 1m, 2m, 4m, 6m then every 3 months until 18m then every 6m until the 1000th day of 2yo.

At each of these follow-up visits, Jennie works to: 

  • Identify the present and potential obstacles and triggers that can lead to the root causes of common infant and childhood conditions

  • Review appropriate growth and development at every stage of development

  • Offer parenting guidance at every stage of development including both parents and siblings
  • Treat common childhood illnesses with natural alternatives including homeopathy, diet, herbs, vitamins, gemmotherapies, as well as the reassurance that their child can manage a common illness with little interventions, love and patience.

  • Avoid unnecessary medications and interventions

  • Jennie believes in empowering parents with the knowledge and tools they need to nurture their child’s health, from pregnancy through early childhood. Her goal is to create a nurturing and supportive environment that allows both mother and baby to thrive.

Jennie gives back to the community by sharing her knowledge with parents and expectant parents at a local rescue mission, helping to ensure that every family can access the vital information needed for their child's first 1,000 days.

By working with Jennie Zethner at Simply Pediatrics, families can feel confident they are making the best choices for their child’s health and well-being during this critical early period. 

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© 2025 Northport Wellness Center. All rights reserved | Designed by ZenChange

The Northport Wellness Center is a multidisciplinary holistic healthcare facility that was founded by Dr. Alan P. Sherr in 1995.

© 2025 Northport Wellness Center. All rights reserved | Designed by ZenChange

The Northport Wellness Center is a multidisciplinary holistic healthcare facility that was founded by Dr. Alan P. Sherr in 1995.

© 2025 Northport Wellness Center. All rights reserved | Designed by ZenChange