Root-Cause Hormones & Gut Health · Long Island
Your Hormones.
Your Gut.
Finally Understood.
Personalized naturopathic care for hormone balance, digestive health, and complex chronic conditions — led by two specialist doctors with over 30 years of combined experience.
Locations
Riverhead, Huntington + Garden City with flexible virtual care nationwide.
Core Focus
Hormones, thyroid, gut dysfunction, autoimmune patterns, and chronic symptoms.
Two Doctors.
Two Areas of Expertise.
One Approach.
At Naturopathic Wellness Center of Long Island, care is led by two experienced naturopathic doctors working collaboratively to support complex and overlapping concerns. With over 30 years of combined clinical experience, we take time to understand the full picture and build a plan that fits your body, your history, and your goals.
Our core focus areas include hormone balance, thyroid health, gut dysfunction, autoimmune patterns, and complex chronic symptoms — conditions that often overlap and require a comprehensive, systems-based approach.
Core Focus Areas
What We Help With
Explore our core areas of focus — designed to support the most common root drivers behind long-term symptoms.
Gut Health & Microbiome Repair
Help for bloating, reflux, IBS symptoms, food sensitivities, and microbiome-related inflammation.
ExploreHormone Balance
Support for PMS, cycle irregularity, PCOS, andropause, and hormone-related symptoms throughout life.
ExplorePerimenopause & Menopause Support
Compassionate, root-cause care through perimenopause and menopause — sleep, mood, energy, and metabolic changes.
ExploreThyroid & Metabolic Health
Personalized support for fatigue, metabolism changes, hair and skin shifts, and thyroid-related imbalance patterns.
ExploreAutoimmune & Inflammatory Conditions
Root-cause strategy for chronic inflammation, immune dysregulation patterns, and multi-system symptoms.
ExploreChronic Fatigue & Complex Concerns
Support for fatigue, brain fog, and chronic symptoms that don't fit neatly into one diagnosis.
ExploreOur Approach
Care That Goes Deeper
Many people come to us after years of unanswered questions — or ongoing symptoms despite being told everything looks "normal." We take time to listen deeply, connect patterns across body systems, and provide clear next steps that support the body's ability to heal.
Root-Cause Evaluation
We look for patterns behind the symptoms — not just the label.
Lab-Informed, Personalized Planning
When appropriate, we use targeted testing and careful interpretation to guide decisions.
Collaborative, Whole-Person Care
We work alongside your existing medical care to support your full health picture.
30+ Years of Experience
Combined clinical experience caring for hormone balance, gut dysfunction, and complex chronic symptoms across Long Island and nationwide.
Your History Matters
We review prior lab work, symptom timelines, and full health history — not just today's complaint — to identify what others may have missed.
In-Office or Virtual
See us in Riverhead, Huntington, or Garden City, or meet with us from the comfort of your home — anywhere in the country.
Patient Stories
What Patients Are Saying
"Dr. Seubert was able to pick up things in my labs that other doctors didn't. He helped lower my cholesterol and blood sugar with diet changes and supplements. I depend on the team for their expert advice and patience."
"I have been a patient for almost 15 years. Dr. Seubert has helped me significantly with thyroid health — my recent blood work showed improvement and I have been able to reduce my thyroid medication."
"After five days in the hospital with severe unexplained pain and multiple specialists with no answers, Dr. Seubert's compassion and understanding of autoimmune conditions stood out. I began managing Sjögren's and improving my overall health."
Who We Serve
Who We Care For
- ●Adults navigating hormone shifts (30s–60+)
- ●Women dealing with fatigue, thyroid-related patterns, and stress physiology
- ●Individuals with long-term digestive symptoms — bloating, IBS patterns, food sensitivities
- ●People with complex or chronic symptoms that overlap multiple systems
We welcome patients from Huntington, Garden City, the North Fork, the Hamptons, and across Suffolk County and Nassau County — with virtual consults available nationwide.
Common areas we support
Our Team
Meet Your Doctors
Two specialized naturopathic doctors working collaboratively to support your full health picture.

Dr. Mychael Seubert
ND · Naturopathic Doctor
Dr. Seubert focuses on digestive health, microbiome balance, and autoimmune and inflammation-related patterns. His work centers on how gut health influences immune function, metabolism, skin concerns, and long-standing chronic symptoms.
Dr. Mychael Seubert
Dr. Erica Waters
ND · Naturopathic Doctor
Dr. Waters specializes in hormone balance across all stages of life — PMS, perimenopause, menopause, thyroid-related patterns, stress-related imbalances, and energy support.
Dr. Erica WatersSubscribe for Wellness Insights
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