Are you Hypothyroid?

Fatigue? Brain fog?

Migrains ? Headaches?

Weight gain?

Hair loss?

No, its's NOT all in your Head

Reclaim Your Life: Expert Thyroid Health Solutions in Orange Country, California

Are you constantly tired, struggling with unexplained weight gain, or frustrated that doctors say your thyroid is "normal"? You're not alone. At Thyroid Treatment Center, we understand that true thyroid health goes beyond standard blood tests. 

Dr. Hitendra Shah, an experienced thyroid health specialist and holistic thyroid doctor, listens to your symptoms and delivers personalized, integrative care that actually works. 

Located in Diamond Bar, California, our clinic specializes in thyroid disorders, hormonal imbalances, and wellness programs designed for you. Stop feeling exhausted. Start feeling like yourself.

Schedule Your Consultation

Why Choose Thyroid Treatment Center?

Experience the Difference of Personalized, Integrative Thyroid Care

At the Thyroid Treatment Center in Diamond Bar, California, we don't believe in one-size-fits-all solutions. Our clinic stands out by combining expert medical knowledge with a genuine, patient-centered approach:

Local Accessibility

Local Accessibility

Conveniently located at 23341 Golden Springs Dr, Suite 210, Diamond Bar, CA 91765, with free parking and flexible appointment scheduling. New patients are always welcome, and free consultations are available.

Comprehensive Diagnosis

Comprehensive Diagnosis

We conduct advanced thyroid testing that goes beyond standard TSH screening. Our thorough evaluation identifies what other doctors may miss, giving you answers and clarity about your health. We believe in getting to the root of the problem, not just treating surface symptoms.

Personalized Treatment Plans

Personalized Treatment Plans

Every patient receives individualized care tailored to their unique symptoms, lifestyle, and health goals. Whether you need medication adjustments, nutritional support, or lifestyle modifications, we create a comprehensive plan designed for your success.

Integrative Wellness Approach

Integrative Wellness Approach

As a holistic thyroid doctor, Dr. Shah combines thyroid medication management with nutritional guidance, stress reduction, and lifestyle optimization—addressing your whole health, not just hormones. This includes discussing appropriate supplementation like vitamins good for thyroid health and multivitamin for thyroid health options personalized to your needs.

Expert Thyroid Specialist Doctor Care

Expert Thyroid Specialist Doctor Care

Dr. Hitendra Shah brings decades of clinical expertise in endocrinology and integrative medicine. With training from prestigious institutions, including Kings County Hospital in Brooklyn, Dr. Shah combines modern medical science with holistic wellness principles to address the root causes of thyroid dysfunction. As your trusted thyroid health specialist, he is committed to finding answers when standard care falls short.

A Different Kind of Hormonal Health

We specialize in the diagnosis and treatment of Thyroid disorders, including Hypothyroidism, Hyperthyroidism, Hashimoto's Thyroiditis, and Grave's disease.

My mission is to improve the hormonal health of my patient with an unwavering commitment to excellence.

A More Complete Approach to Thyroid Health

A successful diagnosis and treatment plan requires looking at the complete picture. We go beyond the basics.

Have you ever left a doctor’s office feeling unheard? You know something is off, but your labs come back "normal" and your symptoms are dismissed. I hear this story all the time, and it's why my approach to hormonal health is so different.

I truly listen and help you feel your best. While I’m not an endocrinologist, my patients often say I’ve helped them more than anyone else. Here’s why:

My approach is different because I believe in treating the whole body as one cohesive system, with thyroid function as a key part of overall hormonal harmony. My philosophy is built on these principles:

  • I listen to you, not just your labs: I don't just order a TSH test and call it a day. I pay attention to every single one of your symptoms, because they are our most important guide.
  • Comprehensive Testing: My initial approach includes a complete thyroid panel with Free T3, Reverse T3, Free T4, and Thyroid antibodies, not just TSH.
  • Individualized Interpretation: I personally review and interpret your lab results in relation to your symptoms. I don't use the term "normal," because "normal" doesn't always mean "optimal." If you have symptoms, we work together to optimize your levels.
  • Targeted Treatment: If your T4-only medication isn't working — which it often doesn't — I will add T3 or a combination of both and adjust dose and frequency, until your symptoms are resolved.
  • I look at the big picture: Your thyroid health is connected to everything else—your adrenals, your stress levels, and other hormones. We treat your body as one interconnected system.
  • We work together: Hormonal health is a journey, and we'll work to optimize all the parts that are out of balance, not just your thyroid. Your health is a collaborative effort, and I'm here to guide you.

Our Comprehensive Thyroid and Hormonal Health Services

Specialized Treatment for Thyroid Disorders and Related Conditions

Thyroid Disorder Diagnosis and Treatment

Feeling exhausted despite sleeping? Experiencing unexplained weight changes? Our thyroid specialist doctor team diagnoses and treats the full spectrum of thyroid conditions, including hypothyroidism, hyperthyroidism, and Hashimoto's thyroiditis. We don't just manage symptoms—we identify underlying causes and create sustainable treatment strategies that restore your quality of life.

Hormone Imbalance Management

Hormonal imbalances affect every system in your body, causing fatigue, mood changes, weight fluctuations, and reduced quality of life. Our integrative approach restores balance through targeted hormone assessment, personalized medication management, and evidence-based wellness strategies designed specifically for your needs.

Advanced Thyroid Testing and Evaluation

Standard thyroid tests often miss critical information. We perform comprehensive bloodwork, including Free T3, Free T4, thyroid antibodies, and complete hormonal panels. This detailed analysis reveals what's truly happening with your thyroid health, providing answers when conventional testing provides none.

Weight Management Programs for Thyroid Health

Many patients struggle with weight gain related to thyroid dysfunction. Our specialized weight management programs address metabolic health, recommend appropriate vitamins good for thyroid health and multivitamins for thyroid health supplementation, and address nutritional deficiencies that impact your ability to achieve a healthy weight alongside thyroid treatment.

Integrative Care and Ongoing Monitoring

Your thyroid health requires continuous attention and adjustment. We provide regular follow-up appointments, medication refinement, and ongoing education to ensure your treatment remains effective and supports your long-term wellness goals.

Expert Treatment for Complex Thyroid and Hormonal Conditions

Hashimoto's thyroid disease holistic treatment is one of our specialties. Hashimoto's thyroiditis is an autoimmune condition where your body attacks thyroid tissue. 

Our comprehensive approach combines medical management with nutritional support, stress reduction, and lifestyle modifications to reduce inflammation, support immune function, and optimize thyroid health. 

We also discuss options, including homeo treatment for hypothyroidism in conjunction with medical care for those interested in complementary approaches.

An underactive thyroid causes fatigue, weight gain, and depression. We optimize thyroid medication dosage and type, recommend appropriate multivitamins for thyroid health supplementation, and address nutritional deficiencies that interfere with thyroid function. Our holistic approach ensures you receive comprehensive care addressing all aspects of your health.

While some patients require thyroid hormone replacement, others benefit from comprehensive holistic support. We discuss natural thyroid treatment options, including dietary modifications, targeted supplementation with vitamins good for thyroid health, stress management, and lifestyle changes that naturally support thyroid function and overall wellness.

Thyroid health is interconnected with adrenal function, reproductive hormones, and metabolic health. Our comprehensive approach addresses these interconnections, ensuring whole-body hormonal balance and optimal wellness for our patients.

Meet Dr. Hitendra H. Shah, M.D.—Your Thyroid Health Specialist

Dr. Hitendra Shah is a board-certified physician with extensive expertise in endocrinology and integrative medicine. After graduating from Medical School in India, Dr. Shah received specialized training at Kings County Hospital in Brooklyn, New York, deepening his knowledge of complex endocrine conditions. 

As an experienced thyroid specialist doctor and holistic thyroid doctor, he brings a unique perspective combining scientific rigor with patient-centered care.

With years of clinical experience, Dr. Shah has developed a reputation as a trusted thyroid health specialist who genuinely listens to patients, invests time in understanding their symptoms, and creates personalized treatment plans that work. 

His integrative medicine background enables him to combine pharmaceutical expertise with nutritional science, lifestyle optimization, and preventive health strategies.

Dr. Shah is passionate about helping patients reclaim their energy, health, and quality of life through expert thyroid care and holistic wellness principles. His patients consistently praise his thoroughness, compassion, and commitment to addressing root causes rather than masking symptoms.

Imagine your life with healthy thyroid.

A thyroid disorder can be very detrimental to your quality of life — if you suspect a problem, don't ignore it! Don't give up. You deserve optimal health.

Don't let Hypothyroidism steal the Best Years of Your Life.

I'm willing to bet that you have many things in common with most of my patients. You've been let down by modern medicine and you're left feeling disappointed and more hopeless each time.

Call : (909) 860-2610

Does this sound like you?

  • You've seen many doctors, specialists and even healers!
  • You've done test after test and thrown endless money at the next possibility of help.
  • You're told "your labs are normal" and 'everything is fine' or you have been diagnosed as stressed, depressed, lazy or even crazy — but you know something is not right.
  • You've been prescribed medications which don't help or cause more problems.
  • You haven't felt normal for such a long time.
  • You are living in a body that is constantly turning against you.
Call : (909) 860-2610

Real People. Real Struggles. Real Healing.

These are true stories from patients who reclaimed their energy, confidence, and lives — thanks to a personalized healing approach by Dr. Shah that goes beyond just labs and symptoms..

⭐ Emily’s Breakthrough: From Daily Exhaustion to Energy & Joy
“I used to wake up more tired than when I went to sleep.”
Emily, a 42-year-old mom of three, had seen seven doctors in five years. Hair loss, brain fog, fatigue, and weight gain were ruining her quality of life — but all her lab results were “normal.”

Everything changed when she met Dr. Shah.

I was referred by my friend to Dr. Shah.

He ran a complete thyroid panel and found low Free T3, high reverse T3, and early signs of Hashimoto’s. Dr. Shah then designed a custom healing plan through his signature 7 Step Thyroid Rejuvenation Program, which included:
  • 🌿 Natural Desiccated Thyroid Medication
  • ☀️ High-Dose Vitamin D Protocol
  • 💊 Adrenal & Gut Support Supplements
  • 🥗 Anti-inflammatory Diet
  • 🧘 Stress, Sleep & Detox Coaching

Within weeks, Emily had more energy, clearer thinking, and began losing weight — without crash diets.

“I finally feel like myself again. Dr. Shah gave me my life back.”

⭐ Jason’s Journey: Reversing Years of Misdiagnosis
“They told me it was just stress — for ten years.”
Jason, 38, used to be fit and full of energy. But over time, he developed fatigue, mental fog, and thinning hair. Doctors blamed stress and prescribed antidepressants — but they only made him feel worse.

Dr. Shah took a more complete approach, running a full thyroid and hormone panel. He discovered low Free T3, low testosterone, and adrenal fatigue.

Dr. Shah designed a personalized wellness plan that included:
  • 💊 Natural Thyroid Medication
  • 🧬 Bioidentical Testosterone Therapy
  • 💉 B12 & Vitamin D Injections
  • 🌱 Adaptogens for Adrenal Recovery
  • 🍽️ Hormone-Friendly Nutrition Plan

In just weeks, Jason’s energy returned, his workouts improved, and he felt sharp and focused again.

“This isn’t just medical care — it’s a transformation. Dr. Shah changed everything for me.”

Our Mission to Heal

This resource is dedicated to helping people with thyroid problems, other hormone imbalances, and chronic medical issues. I am the Medical Director at Wellness Medical Clinic & Thyroid Treatment Center. My team and I are committed to provide optimal treatment to address the source of your symptoms.

Your body wants to heal, and we can help you restore your health to live the life you want to live and enjoy. We deals with the root cause of the disease instead of just treating symptoms…and you're not alone. I have successfully treated over 5000 patients.

You need a professional to help you achieve health, productivity, and happiness so you can be yourself again.

Congratulations! We are your answer!

Call : (909) 860-2610

Don't give up.

You deserve optimal health.

Get an accurate diagnosis and proper, optimum treatment with our “7 Step Thyroid Rejuvenation Program”.

Not sure if it’s thyroid-related? Book a consultation — our team will help you with testing and a clear plan.

Take Control of Your Thyroid Health Today

Stop accepting "normal" test results when you feel anything but normal. Schedule your comprehensive thyroid consultation with Dr. Hitendra Shah and discover what's truly happening with your health.

Schedule Your Consultation

Phone: (909) 860-2610

Address: 23341 Golden Springs Dr, Suite 210, Diamond Bar, CA 91765

Hours: Monday–Friday, 9:30 AM–5:00 PM

New Patients Welcome | Free Consultations Available | Free Parking | Most Insurance Accepted

Frequently Asked Questions

When to see a doctor for thyroid problems?

Seek care if experiencing persistent fatigue, unexplained weight changes, or mood swings. Early intervention from a qualified thyroid specialist doctor prevents complications and improves treatment outcomes significantly.

How We Overcome Hypothyroidism When All Else Fails?

When standard thyroid treatment (usually levothyroxine/T4 alone) doesn’t resolve symptoms, here’s what can help: ✅ Comprehensive Functional Approach: Combination Therapy: T4 (Levothyroxine) + T3 (Liothyronine or natural desiccated thyroid like Armour) Check T3 and Reverse T3: Some patients don’t convert T4 to T3 efficiently. Look Beyond the Thyroid: Adrenal health (cortisol) Gut health (leaky gut, nutrient absorption) Inflammation and autoimmune markers (especially in Hashimoto’s). Diet: Gluten-free, anti-inflammatory, or autoimmune protocols can reduce antibodies and improve symptoms. Nutrients: Optimize iron, selenium, zinc, B12, vitamin D, and magnesium. ⚠️ Many people feel better only when T3 is addressed, not just TSH or T4.

What Can I Do If Labs Don’t Reflect Hypothyroidism?

Sometimes TSH, T4, and even T3 look "normal" — but you still feel tired, foggy, cold, or depressed. What to consider: TSH is not enough — ask for a full panel: Free T3, Free T4, Reverse T3, thyroid antibodies (TPO, TgAb) Reverse T3 dominance: Can "block" T3 at the cellular level (functional hypothyroidism) Cellular resistance: Labs may be normal, but cells aren't responding to thyroid hormones Cortisol dysregulation: High or low cortisol affects how thyroid hormone works Low ferritin or B12: These mimic hypothyroid symptoms 💡 Work with a provider who treats based on symptoms, not just lab ranges

Do You Feel Better on Armour Thyroid Than Synthroid?

Many patients do — and here's why: Synthroid (Levothyroxine): Contains only T4. Relies on your body to convert T4 into active T3. Armour Thyroid: Natural desiccated thyroid (NDT) Contains both T4 and T3 Some people feel more energetic, mentally clear, and warm on Armour. Why the difference? Not everyone efficiently converts T4 → T3. T3 directly affects energy, metabolism, and mood. ⚠️ Armour isn't perfect for everyone — it can cause overstimulation in some or inconsistent hormone levels. But for those who don’t do well on T4-only meds, it can be a game-changer.

Does Armour Cause Problems for Older People?

Sometimes, yes, but not always. Potential issues in older adults: T3 sensitivity: Older patients may be more sensitive to T3, risking heart palpitations or arrhythmias. Cardiovascular health: Those with heart disease need cautious T3 dosing. Metabolism changes: Elderly patients often require lower doses overall. How to approach: Start low, go slow. Monitor heart rate, blood pressure, and symptoms. Consider split dosing to reduce spikes in T3. ✅ With proper monitoring, many older adults can tolerate Armour and feel better on it.

What are the most common thyroid disorders?

The most common thyroid conditions include hypothyroidism, hyperthyroidism, Hashimoto’s thyroiditis, and Graves’ disease. Each condition affects thyroid hormone production differently, leading to symptoms such as fatigue, weight changes, anxiety, brain fog, or irregular heart rate.

What are the symptoms of hypothyroidism?

Most common symptoms of hypothyroidism often include fatigue, weight gain, dry skin, hair loss, constipation, depression, and feeling cold. Even if your labs are “normal,” you may still have hypothyroid symptoms that require a more comprehensive evaluation.

How is Hashimoto’s thyroiditis diagnosed?

Hashimoto’s is an autoimmune thyroid disorder diagnosed through a full thyroid panel, including thyroid antibody testing (TPO and Tg antibodies). Symptoms may include fatigue, weight fluctuations, and brain fog. Early detection is key to managing progression.

 Can thyroid problems cause anxiety and depression?

Yes. Thyroid imbalances can strongly affect mood and mental health. Both hypothyroidism and hyperthyroidism may lead to anxiety, depression, or mood swings because thyroid hormones regulate brain function and neurotransmitters.

What is a complete thyroid blood test panel?

A complete thyroid panel includes TSH, Free T3, Free T4, Reverse T3, and thyroid antibodies. This full picture helps identify thyroid imbalances that basic TSH testing may miss.

Do I need T3 medication if T4-only treatment isn’t working?

Some patients don’t feel better on T4-only medications like levothyroxine. In these cases, combination therapy with T4 and T3 or natural desiccated thyroid (NDT) may provide better symptom relief.

How does stress affect thyroid health?

Chronic stress impacts aenal function, which is closely tied to thyroid performance. Supporting your stress response and adrenal health is an important step in restoring optimal thyroid function.

Can lifestyle changes improve thyroid function?

Yes. While medication may be necessary for many thyroid conditions, nutrition, stress management, sleep, and exercise all play a vital role in supporting thyroid health and improving overall well-being.
Complimentary Consult

Transform Your Thyroid Health Journey

Thyroid plays a crucial role in your body's overall function. It is the conductor of your body's orchestra, harmonizing your heart rate, metabolism, and energy levels. When this conductor loses its beat, the entire symphony of your body's function can be thrown off key.

A diagnosis of thyroid disease is not the end of your health journey but a new beginning. With the right treatment, the rhythms of your body can be restored, and you can regain control of your life.

If you are still not sure or have any questions, take advantage of my complimentary consult offer, where I will review your history, test results, treatments received and then give you my recommendations that can help you restore your health. No Strings Attached.

Take Charge of Your Own Health!
Get Started Now Learn More
Call 909-860-2610

Patient Reviews

What our patients say about Dr. Hitendra H. Shah

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Sarah M.

2 weeks ago

Dr. Shah is an excellent physician. He takes time to listen and provides thorough explanations. Highly recommend!

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Michael R.

1 month ago

Outstanding care and professionalism. Dr. Shah explained everything clearly and made me feel comfortable throughout my treatment.

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Jennifer L.

3 weeks ago

Very knowledgeable doctor with a caring approach. The staff is also wonderful and the office is clean and welcoming.

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David K.

2 months ago

Dr. Shah has been my physician for years. His expertise and genuine concern for his patients is evident in every visit.

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Lisa P.

1 week ago

Excellent bedside manner and very thorough examinations. I always feel heard and well cared for.

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Robert T.

4 weeks ago

Professional, punctual, and personable. Dr. Shah takes the time to address all concerns and questions.

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Maria G.

5 days ago

Dr. Shah is incredibly knowledgeable and compassionate. He helped me understand my condition and treatment options clearly.

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James W.

6 weeks ago

Top-notch medical care with a personal touch. The entire team is professional and the facility is state-of-the-art.

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Nancy H.

10 days ago

Dr. Shah's attention to detail and patient care is exceptional. I trust him completely with my health.

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Thomas B.

3 days ago

Highly skilled physician who genuinely cares about his patients. The office runs efficiently and appointments are always on time.

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Patricia C.

2 weeks ago

Dr. Shah provided excellent care during my treatment. His expertise and kind demeanor made all the difference.

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Kevin M.

1 month ago

Outstanding medical professional. Dr. Shah's thorough approach and clear communication put me at ease immediately.

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Angela D.

1 week ago

Dr. Shah is simply the best! His knowledge, patience, and caring attitude make every visit a positive experience.

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Christopher J.

5 weeks ago

Exceptional healthcare provider. Dr. Shah's dedication to his patients and medical excellence is truly remarkable.

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Michelle S.

4 days ago

Dr. Shah has been instrumental in my health journey. His comprehensive care and follow-up are second to none.

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