The 20 Best Hyperparathyroidism Doctors Near Me in fontana, CA

Find the Top Hyperparathyroidism Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 45 doctor with experience in Hyperparathyroidism near fontana, CA. Of these, 37 are Experienced, 5 are Advanced and 3 are Distinguished.

Location
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45 providers found
    Distinguished in Hyperparathyroidism
    Endocrinology
    Distinguished in Hyperparathyroidism
    Endocrinology
    Referral required

    Saad, Bashar G., M.D., Inc.

    399 E Highland Ave, 
    San Bernardino, CA 
     (9.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Bashar Saad is an Endocrinologist practicing medicine in San Bernardino, California. Dr. Saad is rated as a Distinguished provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 57 other conditions, according to our data. His clinical expertise encompasses Thyroid Nodule, Toxic Nodular Goiter, Type 2 Diabetes (T2D), and Thyroid Storm. Dr. Saad is board certified in Internal Medicine (Sub: Endocrinology, Diabetes & Met and American Board Of Internal Medicine. Dr. Saad is currently accepting new patients.

    Experienced in Hyperparathyroidism
    Radiology | General Surgery
    Experienced in Hyperparathyroidism
    Radiology | General Surgery
    Referral may be required

    Fontana Medical Center

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

    Ching-long Ni is a Radiologist and a General Surgeon practicing medicine in Fontana, California. Dr. Ni is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 55 other conditions, according to our data. His clinical expertise encompasses Neonatal Ovarian Cyst, Scoliosis, Fractured Spine, and Costochondritis. Dr. Ni is currently accepting new patients.

    Experienced in Hyperparathyroidism
    Endocrinology
    Experienced in Hyperparathyroidism
    Endocrinology
    Referral required

    Fontana Medical Center

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

    Arianne Marino is an Endocrinologist practicing medicine in Fontana, California. Dr. Marino is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Addison's Disease, Secondary Adrenal Insufficiency, Triple A Syndrome, and Adrenal Insufficiency Pediatric. Dr. Marino is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Hyperparathyroidism
    Pediatric Otolaryngology | Otolaryngology
    Experienced in Hyperparathyroidism
    Pediatric Otolaryngology | Otolaryngology
    Referral may be required

    Fontana Medical Center

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

    Vikrum Thimmappa is a Pediatric Otolaryngologist and an Otolaryngologist practicing medicine in Fontana, California. Dr. Thimmappa is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Enlarged Adenoids, Ear Tag, Familial Deafness, Adenoidectomy, and Mastoidectomy. Dr. Thimmappa is currently accepting new patients.

    Distinguished in Hyperparathyroidism
    Endocrinology
    Distinguished in Hyperparathyroidism
    Endocrinology
    Referral required

    Bashar Saad, M.D., Inc.

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

    Tony Kastoon is an Endocrinologist practicing medicine in Upland, California. Dr. Kastoon is rated as a Distinguished provider by MediFind in the treatment of Hyperparathyroidism. 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.

    Advanced in Hyperparathyroidism
    Endocrinology
    Advanced in Hyperparathyroidism
    Endocrinology
    Referral required

    Inland Endocrine

    9471 Haven Ave, 
    Rancho Cucamonga, CA 
     (8.0 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 Hyperparathyroidism. 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.

    Advanced in Hyperparathyroidism
    Advanced in Hyperparathyroidism
    Referral required

    Bashar G. Saad, M.D., Inc

    399 E Highland Ave, Ste 227, 
    San Bernardino, CA 
     (9.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Almoutaz Shakally is an Endocrinologist practicing medicine in San Bernardino, California. Dr. Shakally is rated as an Advanced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Hypothyroidism, Hyperthyroidism, and Thyroid Storm. Dr. Shakally is board certified in Internal Medicine (Sub: Endocrinology, Diabetes & Met, American Board Of Internal Medicine, and Internal Medicine. Dr. Shakally is currently accepting new patients.

    Distinguished in Hyperparathyroidism
    General Surgery
    Distinguished in Hyperparathyroidism
    General Surgery
    Referral may be required

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (10.2 miles away)
    Languages Spoken:
    English

    Alfred Simental is a General Surgeon practicing medicine in Loma Linda, California. Dr. Simental is rated as a Distinguished provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Thyroid Cancer, Hyperparathyroidism, Anaplastic Thyroid Cancer, Thyroidectomy, and Parathyroidectomy.

    Experienced in Hyperparathyroidism
    General Surgery
    Experienced in Hyperparathyroidism
    General Surgery
    Referral may be required

    SAC Health System

    250 S G St, 
    San Bernardino, CA 
     (7.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Stephanie Kidd is a General Surgeon practicing medicine in San Bernardino, California. Dr. Kidd is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. Her clinical expertise encompasses Lymphofollicular Hyperplasia, Anaplastic Thyroid Cancer, Thyroid Cancer, and Follicular Thyroid Cancer.

    Experienced in Hyperparathyroidism
    Endocrinology
    Experienced in Hyperparathyroidism
    Endocrinology
    Referral required

    Inland Endocrine

    9471 Haven Ave, 
    Rancho Cucamonga, CA 
     (8.0 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 Hyperparathyroidism. 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 Hyperparathyroidism
    Experienced in Hyperparathyroidism
    Referral required

    Endocrine Advantage A Medical Corp.

    10807 Laurel St Ste 200, 
    Rancho Cucamonga, CA 
     (8.2 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 Hyperparathyroidism. 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 Hyperparathyroidism
    General Surgery
    Experienced in Hyperparathyroidism
    General Surgery
    Referral required

    Upland Surgical Associates

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

    Bryce Beseth is a General Surgeon practicing medicine in Upland, California. Dr. Beseth is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Gangrene, Choledocholithiasis, Necrosis, Hernia Surgery, and Colostomy. Dr. Beseth is board certified in American Board Of Surgery. Dr. Beseth is currently accepting new patients.

    Advanced in Hyperparathyroidism
    General Surgery
    Advanced in Hyperparathyroidism
    General Surgery
    Referral may be required

    Loma Linda Univ Surgery Medical GRP

    11370 Anderson St Ste 2100, 
    Loma Linda, CA 
     (10.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jared Inman is a General Surgeon practicing medicine in Loma Linda, California. Dr. Inman is rated as an Advanced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Renal Oncocytoma, Aseptic and Alopecic Nodules of Scalp (AANS), Ear Cancer, Glossectomy, and Osteotomy.

    Advanced in Hyperparathyroidism
    Endocrinology
    Advanced in Hyperparathyroidism
    Endocrinology
    Referral required

    Rubina Aqeel MD Inc.

    1183 E Foothill Blvd Ste 260, 
    Upland, CA 
     (13.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Rubina Aqeel is an Endocrinologist practicing medicine in Upland, California. Dr. Aqeel is rated as an Advanced provider by MediFind in the treatment of Hyperparathyroidism. 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. Dr. Aqeel is currently accepting new patients.

    Advanced in Hyperparathyroidism
    Endocrinology
    Advanced in Hyperparathyroidism
    Endocrinology
    Referral required

    Nephrology Associates Of Upland And Pomona

    1317 W Foothill Blvd, 
    Upland, CA 
     (13.7 miles away)
    Languages Spoken:
    English

    Minna Huang is an Endocrinologist practicing medicine in Upland, California. Dr. Huang is rated as an Advanced provider by MediFind in the treatment of Hyperparathyroidism. She is also highly rated in 15 other conditions, according to our data. Her clinical expertise encompasses End-Stage Renal Disease (ESRD), May Thurner Syndrome, Hypophosphatemia, and Childhood Hypophosphatasia (HPP). Dr. Huang is board certified in American Board Of Internal Medicine.

    Experienced in Hyperparathyroidism
    Endocrinology
    Experienced in Hyperparathyroidism
    Endocrinology
    Referral required

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (10.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Kevin Codorniz is an Endocrinologist practicing medicine in Loma Linda, California. Dr. Codorniz is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 40 other conditions, according to our data. His clinical expertise encompasses Pituitary Tumor, Prolactinoma, Adrenal Insufficiency Pediatric, and Type 1 Diabetes (T1D). Dr. Codorniz is currently accepting new patients.

    Experienced in Hyperparathyroidism
    Endocrinology
    Experienced in Hyperparathyroidism
    Endocrinology
    Referral required

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (10.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Tania Arous is an Endocrinologist practicing medicine in Loma Linda, California. Dr. Arous is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Addison's Disease, Secondary Adrenal Insufficiency, Triple A Syndrome, and Adrenal Insufficiency Pediatric. Dr. Arous is currently accepting new patients.

    Experienced in Hyperparathyroidism
    General Surgery
    Experienced in Hyperparathyroidism
    General Surgery
    Referral may be required

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (10.2 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Paul Walker is a General Surgeon practicing medicine in Loma Linda, California. He has been practicing medicine for over 18 years. Dr. Walker is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Renal Oncocytoma, Medullary Thyroid Carcinoma, Aseptic and Alopecic Nodules of Scalp (AANS), Gastrostomy, and Glossectomy.

    Experienced in Hyperparathyroidism
    Endocrinology
    Experienced in Hyperparathyroidism
    Endocrinology
    Referral required

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (10.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    James Turner is an Endocrinologist practicing medicine in Loma Linda, California. Dr. Turner is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Hypothalamic Tumor, Empty Sella Syndrome, Rathke Cleft Cyst, and Isolated ACTH Deficiency. Dr. Turner is currently accepting new patients.

    Experienced in Hyperparathyroidism
    General Surgery
    Experienced in Hyperparathyroidism
    General Surgery
    Referral may be required

    Loma Linda Univ Anesthesiology Medical Group Inc

    11234 Anderson St, 
    Loma Linda, CA 
     (10.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Khanh Nguyen is a General Surgeon practicing medicine in Loma Linda, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Hyperparathyroidism. His clinical expertise encompasses Lymphofollicular Hyperplasia, Aseptic and Alopecic Nodules of Scalp (AANS), Thyroid Nodule, Septoplasty, and Tissue Biopsy.

    Showing 1-20 of 45

    Last Updated: 09/26/2026

    What is the definition of Hyperparathyroidism?

    Hyperparathyroidism is a condition in which one or more of the parathyroid glands in your neck produce too much parathyroid hormone (PTH).

    When should I see a Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism doctor search results page. 

    Why is it important to get a second opinion from a different Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism 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 Hyperparathyroidism doctors near fontana, CA?

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

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