Naturopathic Doctor in Gilbert, AZ
Isaac Yosef, NMD, and Lina Kay, PA-C, test for the root cause of chronic fatigue, Lyme disease, mold illness and gut disorders, then treat it with natural therapies.

- Led by Isaac Yosef, NMD
- Gut and mold care, PA-C
- EAV, thermography, HRV testing
- IV therapy in our office
What a Naturopathic Doctor in Gilbert, AZ Does
A naturopathic medical doctor treats illness with natural therapies first and asks why the symptoms started. Dr. Yosef is an integrative physician who finds the root causes of chronic, hard-to-name illness, then corrects the imbalances and toxic overload behind them.

Testing That Goes Past a Routine Panel
When standard labs come back normal and you still feel unwell, we look further. Your history decides which of these tests you need.
- Blood and urine panels customized to your symptoms
- EAV testing, Electrodermal Acupuncture According to Voll
- Thermography, a no-contact heat image of the body
- Heart rate variability, a read on stress and recovery
- Allergy testing that shapes your nutrition plan
Chronic Conditions We Treat
Most patients arrive after months or years of symptoms without clear answers. These are the areas our two clinicians focus on.
Chronic Fatigue Syndrome
Exhaustion that rest does not fix is central to Dr. Yosef's work, and Lina Kay has extensive experience treating it. We test for nutrient gaps, gut problems and toxic burden that can drain energy.
Plans may pair orthomolecular vitamin and mineral dosing with IV therapy for energy and adrenal support.
Lyme Disease
Lyme is one of the elusive illnesses Dr. Yosef treats most. Lingering, shifting symptoms often point to imbalances and toxic overload that need attention alongside the infection.
Care can include herbal and homeopathic remedies plus IV therapy with antibiotic, anti-viral and immune support aims.
SIBO, SIFO and IBS
Bloating, pain and unpredictable digestion are Lina Kay's specialty, since her focus is gastrointestinal disorders. Bacterial and fungal overgrowth are tested for rather than guessed at.
Plans combine targeted natural treatment with nutritional counseling built on your results.
Histamine Intolerance
Flushing, headaches or reactions to certain foods can trace back to histamine. Lina Kay treats histamine intolerance and related inflammatory disorders.
Allergy testing guides a diet you can follow, with homeopathic support where it helps.
Mold Illness
Exposure to mold can leave fatigue, brain fog and inflammation that routine visits miss. Environmental medicine is one of Lina Kay's two areas of focus.
Treatment centers on lowering toxic load, with detoxification IV therapy when it fits your plan.
Joint Pain and Inflammation
For painful joints we offer non-surgical regenerative injection therapy, including platelet rich plasma and Prolozone.
The Avacen and Biomodulator devices are used to help reduce pain and inflammation between visits.
Hormone Imbalance
Fatigue, sleep changes and mood shifts can follow hormone changes. We provide customized bioidentical and homeopathic hormone replacement therapy.
Dosing is set to your own test results and adjusted at follow-up.
Weight Concerns
Weight that will not move often sits on top of other imbalances. We offer oral supplements and injection therapies to support weight loss.
Nutritional counseling based on allergy testing keeps the plan realistic for your daily life.
Natural Medicine First, Guided by Your Results
We do not hand out default prescriptions. Every remedy, IV and supplement in your plan answers something your testing found.
Natural and Integrative Therapies in One Office
Your plan draws from these therapies, chosen and dosed for you.
Herbal and Homeopathic Care
Botanical and homeopathic remedies matched to your case.
Bioidentical and Homeopathic HRT
Hormone therapy customized to your levels.
IV Therapy
Immune, detox, anti-inflammatory, adrenal and energy support.
Orthomolecular Medicine
Oral and IV vitamins and minerals dosed to measured gaps.
Nutritional Counseling
Diet advice built on allergy testing and your goals.
Regenerative Injections
PRP and Prolozone for joint pain, without surgery.
Avacen and Biomodulator
Devices used to help ease pain and inflammation.
Weight Loss Support
Oral supplements and injection therapies for weight loss.
Your First Months as a Patient
Naturopathic care moves in stages, and each stage builds on what the last one found.
- 1
A Full Consultation
We go through your symptoms, history, past labs and current medications.
- 2
Targeted Testing
Only the tests your history calls for, from blood work to EAV or thermography.
- 3
Your Personal Plan
Remedies, nutrition, supplements and any IV or injection therapy, explained in plain terms.
- 4
Follow-Up and Adjustment
Progress is reviewed over the following weeks and months, and the plan changes as you do.
Meet Your Naturopathic Care Team
Complex cases get both a root-cause physician and a gut and environmental illness specialist.

Dr. Isaac Yosef, NMD
Treats chronic, elusive illness such as CFS and Lyme by finding and correcting root causes.

Lina Kay, PA-C, MS
Specializes in gastrointestinal disorders and environmental medicine, including SIBO and mold illness.
Coming to Our Office From Gilbert
We see patients at one office in Scottsdale, reached from Gilbert by the Loop 202 and Loop 101 freeways. Testing, IV therapy and follow-up visits all happen there.

FAQ About Naturopathic Doctors in Gilbert, AZ
What does a naturopathic doctor in Gilbert, AZ treat?
We focus on chronic illness that has been hard to explain, such as chronic fatigue syndrome, Lyme disease, mold illness and gut disorders. Hormone therapy and weight loss support are part of our care too.
Is a naturopathic doctor a real doctor in Arizona?
Yes. Arizona licenses naturopathic medical doctors, who use the NMD credential after graduating from a four-year naturopathic medical school. Dr. Isaac Yosef practices as an NMD and an integrative physician.
What is the difference between a naturopath and a naturopathic doctor?
A naturopathic doctor has completed naturopathic medical school and holds a state license to diagnose and treat. The word naturopath is used more loosely and does not always mean a licensed clinician, so look for the NMD credential.
How soon will I notice a change?
It depends on the condition and how long you have had it. Chronic illness usually improves in stages, which is why your plan is reviewed and adjusted at follow-up visits.
How much does naturopathic care cost?
Cost depends on the testing and therapies your plan includes, so it differs from patient to patient. We go over it with you at your consultation, before treatment begins.
Can I keep seeing my current doctor?
Yes. Your medications and past results are part of the history we review, so a natural plan can be built around them. Many patients use naturopathic care alongside their regular medical care.