The 20 Best Hypothyroidism Doctors Near Me in Montclair, CA

Find the Top Hypothyroidism Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 312 doctor with experience in Hypothyroidism near Montclair, CA. Of these, 284 are Experienced, 25 are Advanced and 3 are Distinguished.

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312 providers found
    Distinguished in Hypothyroidism
    Endocrinology
    Distinguished in Hypothyroidism
    Endocrinology

    Bashar Saad, M.D., Inc.

    630 N 13th Ave, 
    Upland, CA 
     (3.6 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English

    Tony Kastoon is an Endocrinologist practicing medicine in Upland, California. He has been practicing medicine for over 28 years. Dr. Kastoon is rated as a Distinguished provider by MediFind in the treatment of Hypothyroidism. 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.

    Advanced in Hypothyroidism
    Endocrinology
    Advanced in Hypothyroidism
    Endocrinology

    Rubina Aqeel MD Inc.

    1183 E Foothill Blvd Ste 260, 
    Upland, CA 
     (2.5 miles away)
    Languages Spoken:
    English

    Rubina Aqeel is an Endocrinologist practicing medicine in Upland, California. Dr. Aqeel is rated as an Advanced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Hyperthyroidism, Sheehan Syndrome, Hypopituitarism, and Isolated Hypogonadotropic Hypogonadism.

    Distinguished in Hypothyroidism
    Endocrinology | Internal Medicine
    Distinguished in Hypothyroidism
    Endocrinology | Internal Medicine

    Chaparral Medical Group, Inc.

    1866 N Orange Grove Ave, 
    Pomona, CA 
     (3.3 miles away)
    Experience:
    33+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ewa Konca is an Internal Medicine specialist and an Endocrinologist practicing medicine in Pomona, California. She has been practicing medicine for over 33 years. Dr. Konca is rated as a Distinguished provider by MediFind in the treatment of Hypothyroidism. 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 American Board Of Internal Medicine.

    Learn about our expert tiers
    Distinguished in Hypothyroidism
    Family Medicine
    Distinguished in Hypothyroidism
    Family Medicine

    Ravinder Singh, Md, Inc.

    525 N 13th Ave, 
    Upland, CA 
     (3.6 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ravinder Singh is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 27 years. Dr. Singh is rated as a Distinguished provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 108 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Liver Transplant, and Knee Replacement. Dr. Singh is board certified in American Board Of Family Medicine.

    Experienced in Hypothyroidism
    Experienced in Hypothyroidism

    Pharmacy Practice Group

    309 E 2nd St, 
    Pomona, CA 
     (3.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Airani Sathananthan is an Endocrinologist practicing medicine in Pomona, California. Dr. Sathananthan is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Hyperthyroidism, and Cushing's syndrome.

    Advanced in Hypothyroidism
    Internal Medicine
    Advanced in Hypothyroidism
    Internal Medicine

    Susan Biegel MD Inc.

    1004 W Foothill Blvd Ste 200, 
    Upland, CA 
     (2.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Susan Biegel is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Biegel is rated as an Advanced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Sitosterolemia, Vitamin D Deficiency, Hypervitaminosis D, and High Cholesterol.

    Advanced in Hypothyroidism
    Internal Medicine
    Advanced in Hypothyroidism
    Internal Medicine

    John M. Allen DMD Inc

    1880 N Orange Grove Ave, 
    Pomona, CA 
     (3.3 miles away)
    Languages Spoken:
    English

    Praveena Jeereddi is a primary care provider, practicing in Internal Medicine in Pomona, California. Dr. Jeereddi is rated as an Advanced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Autoerythrocyte Sensitivity, Gardner-Diamond Syndrome, and Purpura.

    Advanced in Hypothyroidism
    Family Medicine
    Advanced in Hypothyroidism
    Family Medicine

    Office

    1601 Monte Vista Ave Ste 100, 
    Claremont, CA 
     (3.8 miles away)
    Languages Spoken:
    English

    Lester Holstein is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Holstein is rated as an Advanced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Acne, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Advanced in Hypothyroidism
    Internal Medicine
    Advanced in Hypothyroidism
    Internal Medicine

    Grove Internal Medicine, Inc.

    8283 Grove Ave, 
    Rancho Cucamonga, CA 
     (4.0 miles away)
    Experience:
    28+ years
    Languages Spoken:
    English
    Offers Telehealth

    Sean To is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. He has been practicing medicine for over 28 years. Dr. To is rated as an Advanced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Familial Hypertension.

    Advanced in Hypothyroidism
    Endocrinology
    Advanced in Hypothyroidism
    Endocrinology

    Office

    1330 W Covina Blvd Ste 206, 
    San Dimas, CA 
     (7.3 miles away)
    Languages Spoken:
    English

    Rambod Amani is an Endocrinologist practicing medicine in San Dimas, California. Dr. Amani is rated as an Advanced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Hypothyroidism, Graves Disease, and Maturity Onset Diabetes of the Young.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    Lally Medical Group A Professional Corporation

    5050 San Bernardino St, 
    Montclair, CA 
     (0.3 miles away)
    Languages Spoken:
    English

    James Lally is a primary care provider, practicing in Family Medicine in Montclair, California. Dr. Lally is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses End-Stage Renal Disease (ESRD), Tietz Syndrome, Costochondritis, Endoscopy, and Hip Replacement.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    Office

    5404 Moreno St Ste G, 
    Montclair, CA 
     (0.6 miles away)
    Languages Spoken:
    English

    Ginger Leon is a primary care provider, practicing in Family Medicine in Montclair, California. Dr. Leon is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Osteomyelitis in Children, Seasonal Affective Disorder (SAD), Gastritis, and Infant Hyperglycemia.

    Experienced in Hypothyroidism
    Internal Medicine
    Experienced in Hypothyroidism
    Internal Medicine

    Inland Pulmonary Medical Group

    9525 Monte Vista Ave Unit 105, 
    Montclair, CA 
     (0.6 miles away)
    Languages Spoken:
    English

    Jose Santiago is a primary care provider, practicing in Internal Medicine in Montclair, California. Dr. Santiago is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Apoplexy, Sepsis, Gastrointestinal Bleeding, Hernia Surgery, and Kidney Transplant.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    Office

    4950 San Bernardino St Ste 218, 
    Montclair, CA 
     (0.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jamal Abdel is a primary care provider, practicing in Family Medicine in Montclair, California. Dr. Abdel is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Familial Hypertriglyceridemia, Obesity in Children, Obesity, and Osteomyelitis in Children.

    Experienced in Hypothyroidism
    Internal Medicine
    Experienced in Hypothyroidism
    Internal Medicine

    Our Family Medical Group Inc.

    1131 W 6th St Ste 150, 
    Ontario, CA 
     (1.5 miles away)
    Languages Spoken:
    English

    Hedy Loa is a primary care provider, practicing in Internal Medicine in Ontario, California. Dr. Loa is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Obesity, Osteomyelitis in Children, Gastrostomy, and Endoscopy.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    SCPMG Laboratory-Indian Hill

    250 W San Jose Ave, 
    Claremont, CA 
     (1.6 miles away)
    Languages Spoken:
    English

    Phung Nim is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Nim is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. Her clinical expertise encompasses Type 2 Diabetes (T2D), Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    Brittany Wertz, Do, Inc.

    678 S Indian Hill Blvd, 
    Claremont, CA 
     (1.7 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Offers Telehealth

    Brittany Wertz is a primary care provider, practicing in Family Medicine in Claremont, California. She has been practicing medicine for over 10 years. Dr. Wertz is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. Her clinical expertise encompasses Sepsis, Dysgraphia, Acute Tubular Necrosis, Gastrostomy, and Endoscopy. Dr. Wertz is board certified in American Board Of Family Medicine.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    A Tu. Salud A Medical Corp.

    10563 Mills Ave, 
    Montclair, CA 
     (1.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Octavio Ruiz is a primary care provider, practicing in Family Medicine in Montclair, California. Dr. Ruiz is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Osteomyelitis in Children, Maturity Onset Diabetes of the Young, and High Cholesterol.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    Edge Family Medicine

    440 N Mountain Ave, 
    Upland, CA 
     (1.9 miles away)
    Experience:
    20+ years
    Languages Spoken:
    English

    Mike Zuniga is a primary care provider, practicing in Family Medicine in Upland, California. He has been practicing medicine for over 20 years. Dr. Zuniga is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Cirrhosis. Dr. Zuniga is board certified in American Board Of Family Medicine.

    Experienced in Hypothyroidism
    Family Medicine
    Experienced in Hypothyroidism
    Family Medicine

    Edge Family Medicine

    440 N Mountain Ave, 
    Upland, CA 
     (1.9 miles away)
    Experience:
    20+ years
    Languages Spoken:
    English

    Darlene Espinosa is a primary care provider, practicing in Family Medicine in Upland, California. She has been practicing medicine for over 20 years. Dr. Espinosa is rated as an Experienced provider by MediFind in the treatment of Hypothyroidism. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Type 2 Diabetes (T2D). Dr. Espinosa is board certified in American Board Of Family Medicine.

    Showing 1-20 of 312

    Last Updated: 04/28/2026

    What is the definition of Hypothyroidism?

    Hypothyroidism is a condition in which the thyroid gland does not make enough thyroid hormone. This condition is often called underactive thyroid.

    When should I see a Hypothyroidism doctor near Montclair, 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 Hypothyroidism doctor near Montclair, 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 Hypothyroidism doctors near Montclair, 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 Hypothyroidism doctors near Montclair, 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 Hypothyroidism doctor near Montclair, 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 Hypothyroidism doctor search results page. 

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

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

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