Holistic & functional medicine · Tampa, FL

Real answers.
Natural healing.
No dismissals.

If you've been told your labs are “normal” but you still feel exhausted, foggy, or unwell — you're not imagining it. We find the root cause your other doctors missed, and build a plan that doesn't rely on lifelong medication or surgery.

  • ★★★★★ 4.7 average rating
  • Caring for Tampa since 2004
  • Same-week appointments
Parker Nutritional Healing Center consultation
Since 2004
Caring for chronically ill Tampa patients
600+ hrs
Post-graduate functional neurology & nutrition
4.7★
Average patient rating
$79
New patient first visit
★★★★★
They get to the root cause of all conditions.

“They listen to their patients' concerns and never rush through an appointment. I believe they truly care about their patients.”

Verified patient review
Our approach

We look deeper than a single number

Conventional care manages a lab value. We look at how your whole body is actually working — thyroid, gut, adrenals, hormones, nutrition, and inflammation — and how those systems connect.

  • Comprehensive functional lab testing, not just a basic panel
  • Unrushed visits — time to understand your full story
  • A personalized, realistic plan built around your life
  • A path that doesn't default to lifelong medication
See how it works
Drs. John and Alexa Parker
Meet your doctors

Care from Drs. John & Alexa Parker

Drs. John and Alexa Parker are chiropractic physicians who have spent two decades helping chronically ill patients in Tampa find answers — with over 600 combined post-graduate hours in functional neurology and functional nutrition.

Dr. John Parker, D.C.

Functional Medicine Physician

Leads day-to-day patient care, focused on uncovering the root cause behind thyroid, autoimmune, and chronic conditions.

Dr. Alexa Parker, D.C.

Functional Medicine Physician

Specializes in functional nutrition and the gut–thyroid–hormone connection, building personalized healing plans for each patient.

More about the practice
Real patients

Stories of getting their life back

Natalie — patient testimonial
Thyroid

“Avoided a full thyroidectomy and came off her medications”

— Natalie, Tampa patient

Sharon — patient testimonial
Thyroid

“Her thyroid and overall health turned around”

— Sharon, Tampa patient

Bailey — patient testimonial
Autoimmune

“Autoimmune recovery with whole-food nutrition”

— Bailey, Tampa patient

Watch more stories →

★★★★★ 4.7 from 40+ reviews

In our patients' words

★★★★★
"I suffered with pain and fatigue for over 15 years and tried everything. No one could help me until I followed the protocol they suggested. I finally have my life back!"
— Verified patientChronic pain & fatigue
★★★★★
"I was struggling with an autoimmune disorder and thyroid issues. I started feeling incredible within a few weeks, and every single week I see more improvement."
— Verified patientAutoimmune & thyroid
★★★★★
"They listen to their patients and take them seriously. They get to the root cause of every condition instead of just handing you a prescription."
— Verified patientGoogle review
★★★★★
"They never rush through an appointment. I truly believe they care about their patients."
— Verified patientGoogle review
★★★★★
"With a few months of all-natural supplements, they helped me overcome my syncope — I haven't had an episode in eight months."
— Verified patientGoogle review
★★★★★
"Absolutely amazing — incredibly knowledgeable and genuinely helpful. I finally feel understood."
— Verified patientGoogle review
★★★★★
"Within the first week of seeing them, I started feeling better. My exhaustion, anxiety, and stomach issues have all improved."
— MeghanHashimoto's
★★★★★
"I was run down, tired, no energy, and foggy. Now I have my energy back and I've lost weight, too."
— AnnLow thyroid & brain fog

Frequently asked questions

Do you have endocrinologists on staff?

No. Drs. John and Alexa Parker are chiropractic physicians with advanced training in functional nutrition and functional neurology. We are a functional-medicine practice that offers a root-cause second opinion for people with thyroid, hormonal, and endocrine-related conditions — a different approach than a conventional endocrinologist, focused on finding and addressing underlying drivers.

Why do I still feel terrible when my labs are “normal”?

“Normal” lab ranges are wide, and a single in-range number rarely tells the whole story. We look at the full picture — for the thyroid that can mean T3, T4, reverse T3, and antibodies, plus gut, adrenal, and nutritional markers — to understand why you don't feel like yourself.

What happens at the $79 first visit?

Your first visit includes a complete exam, a full review of your health history, a one-on-one consultation with Dr. Parker, and a personalized healing roadmap.

Do you take insurance?

We are a self-pay practice and do not bill insurance. This lets us spend 45–60 minutes with you and build a plan around your whole health. Many patients use HSA/FSA funds.

Where are you located?

We're at 4343 West Henderson Blvd, Tampa, FL 33629, in South Tampa — convenient to Palma Ceia, Hyde Park, Davis Islands, Brandon, Riverview, and St. Petersburg.

Stay in touch

Follow along with Parker Nutritional Healing

See patient success stories, health tips, and what's happening in the office.

You've tried a lot of things. Now try something different.

Start with a $79 new-patient visit — a complete exam, full health-history review, and a personalized healing roadmap. Same-week appointments available.