The 20 Best Hashimoto Thyroiditis Doctors Near Me in brea, CA

Find the Top Hashimoto Thyroiditis Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 88 doctor with experience in Hashimoto Thyroiditis near brea, CA. Of these, 78 are Experienced, 8 are Advanced and 2 are Distinguished.

Location
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88 providers found
    Distinguished in Hashimoto Thyroiditis
    Endocrinology
    Distinguished in Hashimoto Thyroiditis
    Endocrinology
    Referral required
    100 East Valencia Mesa Drive, Suite 105, 
    Fullerton, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    John Gilbert is an Endocrinologist practicing medicine in Fullerton, California. Dr. Gilbert is rated as a Distinguished provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Thyroid Nodule, Hashimoto Thyroiditis, and Obesity in Children. Dr. Gilbert is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (1.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bradley Borsari is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Borsari is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Autoerythrocyte Sensitivity, Purpura, Gardner-Diamond Syndrome, and Postmenopausal Osteoporosis. Dr. Borsari is currently accepting new patients.

    Advanced in Hashimoto Thyroiditis
    Endocrinology
    Advanced in Hashimoto Thyroiditis
    Endocrinology
    Referral required
    4300 Rose Drive, Suite G, 
    Yorba Linda, CA 
     (3.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Becky Muldoon is an Endocrinologist practicing medicine in Yorba Linda, California. Dr. Muldoon is rated as an Advanced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Thyroid Nodule, Hypothyroidism, and Hashimoto Thyroiditis. Dr. Muldoon is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine
    955 West Imperial Highway, Suite 200, 
    Brea, CA 
     (1.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Angelia Sidarta is a primary care provider, practicing in Family Medicine in Brea, California. Dr. Sidarta is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Familial Hypertriglyceridemia, Lesch-Nyhan Syndrome, Osteomyelitis in Children, and Familial Combined Hyperlipidemia. Dr. Sidarta is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Referral required

    St. Jude Heritage Fullerton-Endocrinology

    100 E Valencia Mesa Dr Ste 105, 
    Fullerton, CA 
     (1.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Michael Kuo is an Endocrinologist practicing medicine in Fullerton, California. Dr. Kuo is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Empty Sella Syndrome, Thyroid Nodule, Postmenopausal Osteoporosis, and Osteoporosis. Dr. Kuo is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Referral required

    Office

    100 E Valencia Mesa Dr Ste 105, 
    Fullerton, CA 
     (1.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Serhat Aytug is an Endocrinologist practicing medicine in Fullerton, California. Dr. Aytug is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. His clinical expertise encompasses Pituitary Tumor, Type 2 Diabetes (T2D), Thyroid Nodule, and Prolactinoma. Dr. Aytug is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    2141 North Harbor Boulevard, Suite 25000, 
    Fullerton, CA 
     (1.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Leo Garcia is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Garcia is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Sitosterolemia, Chronic Cough, and Vitamin D Deficiency.

    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Referral required
    100 East Valencia Mesa Drive, Suite 105, 
    Fullerton, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jason Ling is an Endocrinologist practicing medicine in Fullerton, California. Dr. Ling is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Postmenopausal Osteoporosis, Osteoporosis, Type 2 Diabetes (T2D), and Osteopenia. Dr. Ling is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Referral required
    100 East Valencia Mesa Drive, Suite 105, 
    Fullerton, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bradley Neutel is an Endocrinologist practicing medicine in Fullerton, California. Dr. Neutel is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. His clinical expertise encompasses Necrotizing Myopathy (NM), Pituitary Tumor, Type 2 Diabetes (T2D), and Thyroid Nodule. Dr. Neutel is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine
    1201 West Whittier Boulevard, 
    La Habra, CA 
     (3.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Scott Middleton is a primary care provider, practicing in Family Medicine in La Habra, California. Dr. Middleton is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Frozen Shoulder, High Cholesterol, Cerebellar Multiple System Atrophy, and Hepatocerebral Degeneration. Dr. Middleton is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    4300 Rose Drive, Suite M, 
    Yorba Linda, CA 
     (3.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    William Batty is a primary care provider, practicing in Internal Medicine in Yorba Linda, California. Dr. Batty is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine
    4300 Rose Drive, 
    Yorba Linda, CA 
     (3.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Judy Losco is a primary care provider, practicing in Family Medicine in Yorba Linda, California. Dr. Losco is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 17 other conditions, according to our data. Her clinical expertise encompasses Infant Hyperglycemia, Familial Hypertriglyceridemia, Fish-Eye Disease, and Tangier Disease. Dr. Losco is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine

    PIH Health Physicians

    12675 La Mirada Blvd Ste 201, 
    La Mirada, CA 
     (6.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Hyejin Jae is a primary care provider, practicing in Family Medicine in La Mirada, California. Dr. Jae is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Obesity, Obesity in Children, Vertigo, and Type 2 Diabetes (T2D). Dr. Jae is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Experienced in Hashimoto Thyroiditis

    Central City Community Health Center

    2237 W Ball Rd, 
    Anaheim, CA 
     (7.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Shafeeq Shamsiddeen is a primary care provider, practicing in General Practice in Anaheim, California. Dr. Shamsiddeen is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 82 other conditions, according to our data. His clinical expertise encompasses Schizoaffective Disorder, High Cholesterol, Vitamin D Deficiency, and Obesity in Children. Dr. Shamsiddeen is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine

    Optum - Chapman

    845 E Chapman Ave, 
    Orange, CA 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ana Fajardo is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Fajardo is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 27 other conditions, according to our data. Her clinical expertise encompasses Autoerythrocyte Sensitivity, Gardner-Diamond Syndrome, Purpura, and Cirrhosis. Dr. Fajardo is board certified in American Board Of Family Medicine. Dr. Fajardo is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine

    Office

    3110 Chino Ave Ste 150A, 
    Chino Hills, CA 
     (9.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ryan Agena is a primary care provider, practicing in Family Medicine in Chino Hills, California. Dr. Agena is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Agena is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Experienced in Hashimoto Thyroiditis
    Endocrinology
    Referral required

    Caduceus Medical Group

    18200 Yorba Linda Blvd Ste 104, 
    Yorba Linda, CA 
     (5.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Michael Tran is an Endocrinologist practicing medicine in Yorba Linda, California. Dr. Tran is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Thyroid Storm, Diabetic Nephropathy, and Hyperthyroidism.

    Experienced in Hashimoto Thyroiditis
    Family Medicine
    Experienced in Hashimoto Thyroiditis
    Family Medicine

    Caduceus Medical Group

    18200 Yorba Linda Blvd Ste 250, 
    Yorba Linda, CA 
     (5.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Michael Hall is a primary care provider, practicing in Family Medicine in Yorba Linda, California. Dr. Hall is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Bronchiolitis Obliterans, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    Experienced in Hashimoto Thyroiditis
    Internal Medicine

    Caduceus Medical Group

    18200 Yorba Linda Blvd, Suite 250, 
    Yorba Linda, CA 
     (5.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Olesya Brissey is a primary care provider, practicing in Internal Medicine in Yorba Linda, California. Dr. Brissey is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. Her clinical expertise encompasses High Cholesterol, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Brissey is board certified in American Board Of Internal Medicine.

    Experienced in Hashimoto Thyroiditis
    Experienced in Hashimoto Thyroiditis
    Referral required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (8.9 miles away)
    Languages Spoken:
    English, Arabic
    Accepting New Patients
    Offers Telehealth

    Almoatazbellah Idriss is an Endocrinologist practicing medicine in Orange, California. Dr. Idriss is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Prolactinoma, Triple A Syndrome, Familial Glucocorticoid Deficiency, and Hypoaldosteronism. Dr. Idriss is board certified in American Board Of Internal Medicine - Internal Medicine and American Board Of Internal Medicine - Endocrinology Diabetes And Metabolism. Dr. Idriss is currently accepting new patients.

    Showing 1-20 of 88

    Last Updated: 09/26/2026

    What is the definition of Hashimoto Thyroiditis?

    Hashimoto's disease is a condition that affects the function of the thyroid, which is a butterfly-shaped gland in the lower neck. The thyroid makes hormones that help regulate a wide variety of critical body functions. For example, thyroid hormones influence growth and development, body temperature, heart rate, menstrual cycles, and weight. Hashimoto's disease is a form of chronic inflammation that can damage the thyroid, reducing its ability to produce hormones.

    When should I see a Hashimoto Thyroiditis doctor near brea, CA?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Hashimoto Thyroiditis doctor near brea, CA?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Hashimoto Thyroiditis doctors near brea, CA?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Hashimoto Thyroiditis doctors near brea, CA?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Hashimoto Thyroiditis doctor near brea, CA?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Hashimoto Thyroiditis doctor search results page. 

    Why is it important to get a second opinion from a different Hashimoto Thyroiditis doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Hashimoto Thyroiditis doctor near brea, CA?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Hashimoto Thyroiditis doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Hashimoto Thyroiditis doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Hashimoto Thyroiditis doctors near brea, CA?

    Look for the filter feature on the left side of the Hashimoto Thyroiditis doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Hashimoto Thyroiditis doctor that offers video calls?

    Look for the filter feature on the left-side of the Hashimoto Thyroiditis doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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