The 20 Best Hashimoto Thyroiditis Doctors Near Me in rancho cucamonga, CA

Find the Top Hashimoto Thyroiditis Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 61 doctor with experience in Hashimoto Thyroiditis near rancho cucamonga, CA. Of these, 54 are Experienced, 6 are Advanced and 1 are Distinguished.

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61 providers found
    Advanced in Hashimoto Thyroiditis
    Family Medicine
    Advanced in Hashimoto Thyroiditis
    Family Medicine

    Ravinder Singh, Md, Inc.

    8231 Rochester Ave, 
    Rancho Cucamonga, CA 
     (2.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ravinder Singh is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Singh is rated as an Advanced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 121 other conditions, according to our data. His clinical expertise encompasses Hypercalcemia, Milk-Alkali Syndrome, Type 2 Diabetes (T2D), Hormone Replacement Therapy (HRT), and Parathyroidectomy. Dr. Singh is board certified in American Board Of Family Medicine. Dr. Singh is currently accepting new patients.

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

    9190 Haven Ave

    9190 Haven Ave Ste 102, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ani Berberyan is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Berberyan is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Obesity, Axillary Nerve Dysfunction, Sciatica, and High Cholesterol. Dr. Berberyan is currently accepting new patients.

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

    Cucamonga Valley Medical Group

    7777 Milliken Ave Ste 240, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Eric Bekemeier is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Bekemeier is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Obesity, Cirrhosis, Familial Combined Hyperlipidemia, and Xanthoma. Dr. Bekemeier is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Hashimoto Thyroiditis
    Internal Medicine
    Experienced in Hashimoto Thyroiditis
    Internal Medicine

    Harvey D. Cohen M.D. Inc.

    8330 Red Oak St Ste 201, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nyein Tint is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. She has been practicing medicine for over 17 years. Dr. Tint is rated as an Experienced 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 Obesity, Obesity in Children, High Cholesterol, and Vitamin D Deficiency. Dr. Tint is currently accepting new patients.

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

    Aureus Medical Group, Inc.

    7974 Haven Ave, 
    Rancho Cucamonga, CA 
     (1.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Steven Barag is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Barag is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Sciatica, Eunuchoidism Familial Hypogonadotropic, and Male Pseudohermaphroditism with Gynecomastia. Dr. Barag is board certified in American Osteopathic Board Of Family Practice. Dr. Barag is currently accepting new patients.

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

    Fagan, John A. Family Practice, Inc.

    10787 Laurel St, 
    Rancho Cucamonga, CA 
     (1.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    John Fagan is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Fagan is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 45 other conditions, according to our data. His clinical expertise encompasses Ehlers-Danlos Syndrome (EDS), Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Fagan is board certified in American Board Of Family Medicine. Dr. Fagan is currently accepting new patients.

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

    Radiology/Diagnostic Imaging At Rancho Cucamonga Medical Offices

    10850 Arrow Rte, 
    Rancho Cucamonga, CA 
     (1.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Rishu Marwaha is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Marwaha is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Obesity, Axillary Nerve Dysfunction, Obesity in Children, and High Cholesterol. Dr. Marwaha is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Experienced in Hashimoto Thyroiditis

    Cucamonga Valley Medical Group, Inc.

    16465 Sierra Lakes Pkwy, 
    Fontana, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    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 Hashimoto Thyroiditis. She is also highly rated in 28 other conditions, according to our data. Her clinical expertise encompasses Obesity, Obesity in Children, Cirrhosis, and High Cholesterol. Dr. Bekemeier is board certified in American Board Of Family Medicine. Dr. Bekemeier is currently accepting new patients.

    Advanced in Hashimoto Thyroiditis
    Endocrinology
    Advanced in Hashimoto Thyroiditis
    Endocrinology
    Referral required

    Inland Endocrine

    9471 Haven Ave, 
    Rancho Cucamonga, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Stuart Seigel is an Endocrinologist practicing medicine in Rancho Cucamonga, California. Dr. Seigel is rated as an Advanced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Thyroid Storm, and Low Testosterone. Dr. Seigel is board certified in American Board Of Internal Medicine. Dr. Seigel is currently accepting new patients.

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

    Bashar Saad, M.D., Inc.

    630 N 13th Ave, 
    Upland, CA 
     (2.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tony Kastoon is an Endocrinologist practicing medicine in Upland, California. Dr. Kastoon 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 Thyroid Storm, Type 2 Diabetes (T2D), Hypothyroidism, and Hyperparathyroidism. Dr. Kastoon is board certified in American Board Of Internal Medicine. Dr. Kastoon is currently accepting new patients.

    Distinguished in Hashimoto Thyroiditis
    Endocrinology
    Distinguished in Hashimoto Thyroiditis
    Endocrinology
    Referral required

    Chaparral Medical Group, Inc.

    1866 N Orange Grove Ave, 
    Pomona, CA 
     (9.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ewa Konca is an Endocrinologist practicing medicine in Pomona, California. Dr. Konca is rated as a Distinguished provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 59 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Obesity in Children, Obesity, and Hypothyroidism. Dr. Konca is board certified in Internal Medicine (Sub: Endocrinology, Diabetes & Met and American Board Of Internal Medicine. Dr. Konca is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Experienced in Hashimoto Thyroiditis
    Referral required

    Endocrine Advantage A Medical Corp.

    10807 Laurel St Ste 200, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Silvana Giannelli is an Endocrinologist practicing medicine in Rancho Cucamonga, California. Dr. Giannelli is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 25 other conditions, according to our data. Her clinical expertise encompasses Juvenile Primary Osteoporosis, Graves Disease, Thyroid Storm, and Addison's Disease. Dr. Giannelli is currently accepting new patients.

    Experienced in Hashimoto Thyroiditis
    Experienced in Hashimoto Thyroiditis

    Office

    7777 Milliken Ave Ste 350, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sandra Force-Obrowski is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Force-Obrowski is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Bernard-Soulier Syndrome.

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

    Rommie F. Fakhoury MD Inc.

    10601 Church St Ste 110, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rommie Fakhoury is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Fakhoury is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. His clinical expertise encompasses Type 1 Diabetes (T1D), Urinary Tract Infection in Children, Urinary Tract Infection (UTI), and Hashimoto Thyroiditis.

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

    Our Family Medical Group Inc.

    9190 Haven Ave Ste 102, 
    Rancho Cucamonga, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Peter Niciforos is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Niciforos is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. His clinical expertise encompasses Severe Acute Respiratory Syndrome (SARS), Obesity, Obesity in Children, and Tracheitis.

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

    Medicor Medical Group, Inc.

    7974 Haven Ave, 
    Rancho Cucamonga, CA 
     (1.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mark Shiu is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Shiu 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 Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and Vitamin D Deficiency. Dr. Shiu is board certified in American Osteopathic Board Of Family Physicians.

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

    Fagan, John A Family Practice, Inc.

    10787 Laurel St, 
    Rancho Cucamonga, CA 
     (1.4 miles away)
    Languages Spoken:
    English

    Imdad Ahmad is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Ahmad is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Obesity in Children, Obesity, Food Allergy, and Type 2 Diabetes (T2D).

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

    Inland Endocrine

    9471 Haven Ave, 
    Rancho Cucamonga, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jodi Nagelberg is an Endocrinologist practicing medicine in Rancho Cucamonga, California. Dr. Nagelberg is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Hyperthyroidism, Thyroid Storm, Addison's Disease, Secondary Adrenal Insufficiency, and Parathyroidectomy. Dr. Nagelberg is board certified in American Board Of Internal Medicine. Dr. Nagelberg is currently accepting new patients.

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

    Cucamonga Valley Medical Group, Inc.

    7777 Milliken Ave, 
    Rancho Cucamonga, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Mirelle Ignacio is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Ignacio is rated as an Experienced provider by MediFind in the treatment of Hashimoto Thyroiditis. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Obesity, Methylmalonic Acidemia with Homocystinuria, Sulfite Oxidase Deficiency, and Hypermethioninemia. Dr. Ignacio is board certified in American Board Of Family Medicine.

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

    Armour, Richard L., D.O.

    1113 Alta Ave, 
    Upland, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Richard Armour is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Armour 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 Inborn Amino Acid Metabolism Disorder, Osteomyelitis in Children, Bronchiolitis Obliterans, and Industrial Bronchitis. Dr. Armour is board certified in American Osteopathic Board Of Family Practice.

    Showing 1-20 of 61

    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 rancho cucamonga, 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 rancho cucamonga, 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 rancho cucamonga, 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 rancho cucamonga, 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 rancho cucamonga, 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 rancho cucamonga, 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 rancho cucamonga, 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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