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    Last Updated: 10/30/2025

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    MediFind found 114 doctor with experience in Hyperthyroidism near Fontana, CA. Of these, 103 are Experienced and 11 are Advanced.

    Location
    LocationClose
    114 providers found
      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Namita Mohideen MD Inc

      16854 Ivy Ave #A, 
      Fontana, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Rubin Lin is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Lin is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Hypolipoproteinemia, Chorea-Acanthocytosis, Familial HDL Deficiency, and Tangier Disease.

      Afshin Hamidi
      Advanced in Hyperthyroidism
      Endocrinology
      Advanced in Hyperthyroidism
      Endocrinology

      Quantum Healthcare Medical Associates Inc

      400 N Pepper Ave, 
      Colton, CA 
       (5.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Afshin Hamidi is an Endocrinologist in Colton, California. Dr. Hamidi is rated as an Advanced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Vitamin B12 Deficiency, Vitamin D Deficiency, Type 2 Diabetes (T2D), and Thyroid Storm.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Seniors Choice Medical Group Inc

      8990 Sierra Ave, Suite Jandk, 
      Fontana, CA 
       (0.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Singh Boun is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Boun is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Obesity in Children.

      Learn about our expert tiers
      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine

      Pinnacle Medical Group Inc

      8110 Mango Ave, 
      Fontana, CA 
       (0.9 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Paul Chen is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), Autoerythrocyte Sensitivity, and Gardner-Diamond Syndrome.

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology

      Southern California Permanente Medical Group

      9961 Sierra Ave, 
      Fontana, CA 
       (1.3 miles away)
      Languages Spoken:
      English

      Arianne Marino is an Endocrinologist in Fontana, California. Dr. Marino is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Addison's Disease, Secondary Adrenal Insufficiency, Triple A Syndrome, and Thyroid Storm.

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology

      Southern California Permanente Medical Group

      9961 Sierra Ave, 
      Fontana, CA 
       (1.3 miles away)
      Experience:
      16+ years
      Languages Spoken:
      English

      Eunice Chuang is an Endocrinologist in Fontana, California. Dr. Chuang has been practicing medicine for over 16 years and is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Type 1 Diabetes (T1D), Thyroid Nodule, Hyperthyroidism, and Secondary Adrenal Insufficiency.

      Experienced in Hyperthyroidism
      Endocrinology
      Experienced in Hyperthyroidism
      Endocrinology

      Southern California Permanente Medical Group

      9961 Sierra Ave, 
      Fontana, CA 
       (1.3 miles away)
      Languages Spoken:
      English

      Dat Ha is an Endocrinologist in Fontana, California. Dr. Ha is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Type 1 Diabetes (T1D), Thyroid Nodule, Thyroid Storm, and Hyperthyroidism.

      Experienced in Hyperthyroidism
      Experienced in Hyperthyroidism

      Southern California Permanente Medical Group

      9961 Sierra Ave, 
      Fontana, CA 
       (1.3 miles away)
      Languages Spoken:
      English

      Matthew Mccauley is an Endocrinologist in Fontana, California. Dr. Mccauley is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Thyroid Nodule, Type 1 Diabetes (T1D), Thyroid Storm, and Graves Disease.

      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine

      Kaiser Permanente Fontana Medical Center - Internal Medicine Department

      9961 Sierra Ave, 
      Fontana, CA 
       (1.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Brian Cheung is a primary care provider, practicing in Internal Medicine in Fontana, California. Dr. Cheung is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Heart Block, Tietz Syndrome, Costochondritis, Endocarditis, and Vertebroplasty. Dr. Cheung is currently accepting new patients.

      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine
      436 S Riverside Ave, 
      Rialto, CA 
       (3.7 miles away)
      Experience:
      43+ years
      Languages Spoken:
      English

      Ruben Ruiz is a primary care provider, practicing in Internal Medicine in Rialto, California. Dr. Ruiz has been practicing medicine for over 43 years and is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Type 2 Diabetes (T2D), Obesity in Children, Bronchitis, and Food Allergy.

      Experienced in Hyperthyroidism
      Family Medicine | Internal Medicine
      Experienced in Hyperthyroidism
      Family Medicine | Internal Medicine

      Lasalle Medical Associates

      790 E Foothill Blvd, Suite D, 
      Rialto, CA 
       (4.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

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

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Pinnacle Medical Group Inc

      1851 N Riverside Ave, 
      Rialto, CA 
       (4.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

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

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Pinnacle Medical Group Inc

      1851 N Riverside Ave, 
      Rialto, CA 
       (4.7 miles away)
      Experience:
      16+ years
      Languages Spoken:
      English
      Offers Telehealth

      Camille Chano is a primary care provider, practicing in Family Medicine in Rialto, California. Dr. Chano has been practicing medicine for over 16 years and is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Obesity, Osteomyelitis in Children, Type 2 Diabetes (T2D), and Obesity in Children.

      Experienced in Hyperthyroidism
      Family Medicine | Internal Medicine
      Experienced in Hyperthyroidism
      Family Medicine | Internal Medicine

      Vituity Physician Services PC

      850 E Foothill Blvd, 
      Rialto, CA 
       (4.8 miles away)
      Languages Spoken:
      English

      Debra Craig is a primary care provider, practicing in Family Medicine and Internal Medicine in Rialto, California. Dr. Craig is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Chronic Kidney Disease, Ascites, End-Stage Renal Disease (ESRD), Gastrostomy, and Endoscopy.

      Experienced in Hyperthyroidism
      Family Medicine
      Experienced in Hyperthyroidism
      Family Medicine

      Cucamonga Valley Medical Group Inc

      16465 Sierra Lakes Pkwy, Suite 300, 
      Fontana, CA 
       (4.9 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jesse Dominguez is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Dominguez is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and Alcoholic Neuropathy.

      Experienced in Hyperthyroidism
      Experienced in Hyperthyroidism

      Cucamonga Valley Medical Group Inc

      16465 Sierra Lakes Pkwy, Suite 300, 
      Fontana, CA 
       (4.9 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Kimberly Bekemeier is a primary care provider, practicing in Family Medicine in Fontana, California. Dr. Bekemeier is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Obesity, Obesity in Children, Cirrhosis, and High Cholesterol.

      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine

      Quantum Healthcare Medical Associates Inc

      400 N Pepper Ave, 
      Colton, CA 
       (5.0 miles away)
      Languages Spoken:
      English

      Timothy Yaopruke is a primary care provider, practicing in Internal Medicine in Colton, California. Dr. Yaopruke is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. His top areas of expertise are Sepsis, Maturity Onset Diabetes of the Young, Anemia, and Type 2 Diabetes (T2D).

      Experienced in Hyperthyroidism
      Experienced in Hyperthyroidism

      Clinic Services Of California Medical Group Inc

      400 N Pepper Ave, 
      Colton, CA 
       (5.0 miles away)
      Languages Spoken:
      English

      Katherine Bourbeau-Medinilla is a primary care provider, practicing in Internal Medicine in Colton, California. Dr. Bourbeau-Medinilla is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Hypertension, and Familial Hypertension.

      Experienced in Hyperthyroidism
      Pediatrics | Internal Medicine
      Experienced in Hyperthyroidism
      Pediatrics | Internal Medicine

      Clinic Services Of California Medical Group Inc

      400 N Pepper Ave, 
      Colton, CA 
       (5.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Tam Huynh is a primary care provider, practicing in Pediatrics and Internal Medicine in Colton, California. Dr. Huynh is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Diabetic Retinopathy, Type 2 Diabetes (T2D), Gastroparesis, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Hyperthyroidism
      Internal Medicine
      Experienced in Hyperthyroidism
      Internal Medicine

      Clinic Services Of California Medical Group Inc

      400 N Pepper Ave, 
      Colton, CA 
       (5.0 miles away)
      Experience:
      9+ years
      Languages Spoken:
      English

      Sunita Hassamal is a primary care provider, practicing in Internal Medicine in Colton, California. Dr. Hassamal has been practicing medicine for over 9 years and is rated as an Experienced provider by MediFind in the treatment of Hyperthyroidism. Her top areas of expertise are Type 2 Diabetes (T2D), Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Showing 1-20 of 114

      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 Fontana, 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 Fontana, 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 Fontana, 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 Fontana, 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 Fontana, 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 Fontana, 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 Fontana, 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 

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