Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 10/30/2025

    Save doctors for later
    Sign Up
    Not sure about your diagnosis?
    Check Your Symptoms
    Already have a doctor?
    Find A Second Opinion

    MediFind found 197 doctor with experience in Hyperthyroidism near Fullerton, CA. Of these, 172 are Experienced and 24 are Advanced.

    Location
    LocationClose
    197 providers found
      Advanced in Hyperthyroidism
      Endocrinology
      Advanced in Hyperthyroidism
      Endocrinology
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      John Gilbert is an Endocrinologist in Fullerton, California. Dr. Gilbert is rated as an Advanced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Type 2 Diabetes (T2D), Hashimoto Thyroiditis, Thyroid Nodule, and Obesity in Children. Dr. Gilbert is currently accepting new patients.

      Advanced in Hyperthyroidism
      Endocrinology
      Advanced in Hyperthyroidism
      Endocrinology
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Jason Ling is an Endocrinologist in Fullerton, California. Dr. Ling is rated as an Advanced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Osteoporosis, Postmenopausal Osteoporosis, Type 2 Diabetes (T2D), and Osteopenia. Dr. Ling is currently accepting new patients.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Hyperthyroidism
      Endocrinology
      Advanced in Hyperthyroidism
      Endocrinology

      Aleem Syed MD A Professional Corporation

      1211 W La Palma Ave, Suite 702, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Aleem Syed is an Endocrinologist in Anaheim, California. Dr. Syed is rated as an Advanced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Type 2 Diabetes (T2D), Hypothyroidism, Type 1 Diabetes (T1D), and Obesity in Children.

      Learn about our expert tiers
      Farhad Nassiri Afshar
      Internal Medicine
      Internal Medicine

      Afshar Medical Group

      62 Corporate Park, STE 200, 
      Irvine, CA 
       (13.6 miles away)
      Experience:
      21+ years
      Languages Spoken:
      English, Farsi
      Accepting New Patients
      Offers Telehealth

      Dr. Farhad Nassiri Afshar is a board-certified internist based in Irvine, California and founder of Afshar Medical Group. With more than 20 years of experience caring for adults in hospitals and outpatient clinics, he provides comprehensive primary care with a focus on heart disease prevention, hypertension, diabetes, dyslipidemia, obesity, thyroid disorders, and chronic kidney disease.Dr. Nassiri Afshar earned his medical degree from Tehran University of Medical Sciences and completed his Internal Medicine residency at the University of British Columbia in Vancouver, Canada. His background includes work as a general practitioner and hospitalist, managing complex patients with coronary artery disease, heart failure, stroke, venous thromboembolism, and sleep apnea.At Afshar Medical Group in Irvine, he combines evidence-based medicine with lifestyle counseling and modern digital tools, including telehealth and advanced analytics, to deliver convenient, high-quality care. He emphasizes clear communication, preventive strategies, and long-term partnerships with his patients to help them live healthier, longer, and more active lives. . His top areas of expertise are High Cholesterol, Hypertension, Asthma, and Type 2 Diabetes (T2D).

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

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

      Experienced in Hyperthyroidism
      Experienced in Hyperthyroidism

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Karen Frankwich is an Endocrinologist in Fullerton, California. Dr. Frankwich is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Thyroid Nodule, Hypothyroidism, Obesity in Children, and Prolactinoma.

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Alexandra Duke is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Duke is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Hypothyroidism, Type 2 Diabetes (T2D), Obesity in Children, and Postmenopausal Osteoporosis.

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology
      100 E Valencia Mesa Dr, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English

      Serhat Aytug is an Endocrinologist in Fullerton, California. Dr. Aytug is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Pituitary Tumor, Type 2 Diabetes (T2D), Thyroid Nodule, and Prolactinoma.

      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine
      1182 N Euclid St, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English

      Minal Borsada is a primary care provider, practicing in Internal Medicine in Anaheim, California. Dr. Borsada is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Obesity in Children, Food Allergy, Obesity, and Type 2 Diabetes (T2D).

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Primary And Multi-Specialty Clinics Of Anaheim

      710 N Euclid St, Suite 101, 
      Anaheim, CA 
       (2.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Glenn Morinishi is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Morinishi is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Sitosterolemia, High Cholesterol, Infant Hyperglycemia, and Obesity.

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

      Ruben Cabral is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Cabral is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Type 2 Diabetes (T2D). Dr. Cabral is currently accepting new patients.

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

      David Ruckman is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Ruckman is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Ascites, Anemia, High Cholesterol, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine

      Memorialcare Medical Foundation

      100 S Anaheim Blvd, Suite 101, 
      Anaheim, CA 
       (2.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Keith Lee is a primary care provider, practicing in Internal Medicine in Anaheim, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Macroamylasemia, Type 2 Diabetes (T2D), Osteomyelitis in Children, and Anosmia.

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Memorialcare Medical Foundation

      100 S Anaheim Blvd, Suite 101, 
      Anaheim, CA 
       (2.5 miles away)
      Languages Spoken:
      English

      Trucvy Le is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Le is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Osteomyelitis in Children, Obesity, High Cholesterol, and Type 2 Diabetes (T2D).

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Memorialcare Medical Foundation

      100 S Anaheim Blvd, Suite 101, 
      Anaheim, CA 
       (2.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jenny Tan is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Tan is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Osteomyelitis in Children, Obesity, Obesity in Children, and Type 2 Diabetes (T2D).

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      University Of California Irvine

      2441 W La Palma Ave, 
      Anaheim, CA 
       (3.0 miles away)
      Languages Spoken:
      English

      Tan Nguyen is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Endoscopy.

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology

      Healthcare Partners Affiliates Medical Group

      1236 N Magnolia Ave, 
      Anaheim, CA 
       (3.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Yana Stolyarov is an Endocrinologist in Anaheim, California. Dr. Stolyarov is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Hirsutism in Women, Type 2 Diabetes (T2D), Graves Disease, and Hashimoto Thyroiditis.

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology

      Healthcare Partners Affiliates Medical Group

      925 S Euclid St, 
      Anaheim, CA 
       (3.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Sonaina Imtiaz is an Endocrinologist in Anaheim, California. Dr. Imtiaz is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Secondary Adrenal Insufficiency, and Addison's Disease.

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine
      6261 Stanton Ave, 
      Buena Park, CA 
       (4.0 miles away)
      Languages Spoken:
      English

      Inil Lin is a primary care provider, practicing in Family Medicine in Buena Park, California. Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Congenital Sucrase-Isomaltase Deficiency, Glucose Phosphate Isomerase Deficiency, Glucose-Galactose Malabsorption Deficiency, and Obesity.

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine
      419 West Chapman Avenue, 
      Placentia, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Don Garcia is a primary care provider, practicing in Family Medicine in Placentia, California. Dr. Garcia is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, High Cholesterol, and Cirrhosis. Dr. Garcia is currently accepting new patients.

      Showing 1-20 of 197

      Last Updated: 10/30/2025

      What is the definition of Hyperthyroidism?

      Hyperthyroidism is a condition in which the thyroid gland makes too much thyroid hormone. The condition is often called overactive thyroid.

      When should I see a Hyperthyroidism doctor near Fullerton, 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 Hyperthyroidism doctor near Fullerton, 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 Hyperthyroidism doctors near Fullerton, 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 Hyperthyroidism doctors near Fullerton, 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 Hyperthyroidism doctor near Fullerton, 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 Hyperthyroidism doctor search results page. 

      Why is it important to get a second opinion from a different Hyperthyroidism 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 Hyperthyroidism doctor near Fullerton, 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 Hyperthyroidism 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 Hyperthyroidism 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 Hyperthyroidism doctors near Fullerton, CA?

      Look for the filter feature on the left side of the Hyperthyroidism 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 Hyperthyroidism doctor that offers video calls?

      Look for the filter feature on the left-side of the Hyperthyroidism 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 

      Read more about our Content Policy