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Functional Medicine & Integrative Psychiatry

Functional Medicine & Integrative Psychiatry in St. Johns & Jacksonville

Functional medicine and integrative psychiatry that look beneath symptoms to find what is actually driving them, blending advanced lab testing, thoughtful medication management, and nervous system support into one plan of care.

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Functional Medicine & Integrative Psychiatry

Care That Asks Why

Conventional care often stops at symptom management. At Deep See Wellness, functional medicine and integrative psychiatry start with curiosity: why anxiety, depression, or burnout showed up in your life, and what in your body, history, and environment may be keeping it in place.

Led by dual board-certified nurse practitioner Lauren Marchefka, FNP-BC, PMHNP-BC, your care blends functional medicine with integrative psychiatry. That means extended visits, advanced lab testing for hormones, thyroid, nutrients, inflammation, and gut health when it is useful, and a plan built around your biology, your history, and your goals.

Appointments are available in person in St. Johns, Florida, serving Ponte Vedra, Nocatee, Jacksonville, and Northeast Florida, with telehealth across Florida, Colorado, and Washington.

Lauren Marchefka, FNP-BC, PMHNP-BC, integrative psychiatry provider in St. Johns, Florida

Care Led by Lauren Marchefka

Lauren is dual board-certified as a Family Nurse Practitioner (FNP-BC) and a Psychiatric Mental Health Nurse Practitioner (PMHNP-BC), with advanced training in brain health, hormonal optimization, nervous system regulation, and ketamine-assisted therapy.

That dual training means your mental health is never treated in isolation from the rest of your body, and your physical health is never treated in isolation from your mind.

What's Included

How Your Care Unfolds

01

Comprehensive Psychiatric Evaluation

Extended visits that cover your symptoms, history, lifestyle, sleep, stress, nutrition, and prior treatments, so we understand the whole picture rather than a single diagnosis.

02

Functional & Advanced Lab Testing

Targeted testing for hormones, thyroid, nutrient status, inflammation, and gut health when clinically appropriate, so treatment is guided by your biology rather than guesswork.

03

Thoughtful Medication Management

Medication is one tool among many, offered when it is genuinely helpful and adjusted carefully, never prescribed by default.

04

Nervous System Regulation

Practical, evidence-informed strategies that help your body move out of chronic fight-or-flight, a foundation for anxiety treatment and trauma recovery.

05

Nutritional & Lifestyle Psychiatry

Support for the everyday inputs that shape mood and cognition: nutrition, movement, sleep, light, and stress recovery.

06

Ongoing Partnership & Optimization

Regular follow-up to track what is working, refine your plan, and adjust as your needs change over time.

Conditions We Address

Who We Help

Anxiety & panicDepression & mood disordersPTSD & complex traumaBurnout & overwhelmADHD & executive functionInsomnia & sleep disruptionHormonal mood changesBrain fog & cognitive concernsChronic illness & mental health
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Advanced Therapeutics

Also Considering Ketamine Therapy?

When conventional approaches have not brought relief, ketamine-assisted therapy may be an option. It is offered in person in St. Johns with careful screening, preparation, and integration support.

Explore Ketamine Therapy

Begin Your Journey

Ready to See Deeper?

Your healing journey starts with a conversation. Schedule a consultation to explore how personalized care at Deep See Wellness can support your path to restoration, serving Jacksonville, St. Johns, Ponte Vedra, and all of Florida, Colorado, and Washington via telehealth.