The 20 Best Sinusitis Doctors Near Me in Castro Valley, CA

Find the Top Sinusitis Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 228 doctor with experience in Sinusitis near Castro Valley, CA. Of these, 206 are Experienced, 20 are Advanced and 2 are Distinguished.

Location
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228 providers found
    Experienced in Sinusitis
    General Surgery
    Experienced in Sinusitis
    General Surgery

    Castro Valley Care Center

    20101 Lake Chabot Road, 3rd Floor, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Kristin Brew is a General Surgeon practicing medicine in Castro Valley, California. Dr. Brew is rated as an Experienced provider by MediFind in the treatment of Sinusitis. Her clinical expertise encompasses Familial Deafness, Male Pattern Baldness, Infant Hearing Loss, and Burning Mouth Syndrome. Dr. Brew is board certified in Otolaryngology – Head And Neck Surgery - Board Certified. Dr. Brew is currently accepting new patients.

    Distinguished in Sinusitis
    Allergy and Immunology
    Distinguished in Sinusitis
    Allergy and Immunology

    Office

    7677 Oakport St Ste 105, 
    Oakland, CA 
     (8.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sanjeev Jain is an Allergy and Immunologist practicing medicine in Oakland, California. Dr. Jain is rated as a Distinguished provider by MediFind in the treatment of Sinusitis. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Grass Allergy, Hives, Allergic Rhinitis, and Sinusitis.

    Advanced in Sinusitis
    Allergy and Immunology
    Advanced in Sinusitis
    Allergy and Immunology

    Allergy Asthma & Sinus Centers Of Silicon Valley Inc.

    20400 Lake Chabot Rd Ste 304, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Kenneth Lien is an Allergy and Immunologist practicing medicine in Castro Valley, California. Dr. Lien is rated as an Advanced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Grass Allergy, Allergic Rhinitis, Food Allergy, and Sinusitis.

    Learn about our expert tiers
    Advanced in Sinusitis
    Sleep Medicine
    Advanced in Sinusitis
    Sleep Medicine

    Bay Area Ear Nose And Throat Medical Group

    13847 E 14th St Ste 200, 
    San Leandro, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    Robert Wu is a Sleep Medicine provider practicing medicine in San Leandro, California. Dr. Wu is rated as an Advanced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Swimmer's Ear, Trachoma, Jones Syndrome, DFNB1, and Gastrostomy.

    Experienced in Sinusitis
    Otolaryngology
    Experienced in Sinusitis
    Otolaryngology

    Office

    20400 Lake Chabot Rd Ste 301, 
    Castro Valley, CA 
     (0.7 miles away)
    Languages Spoken:
    English

    Mark Zeme is an Otolaryngologist practicing medicine in Castro Valley, California. Dr. Zeme is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Otitis, Jones Syndrome, DFNB1, and Infant Hearing Loss.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Stanford Medicine Partners

    20642 John Dr, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Cristina Gesmundo is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Gesmundo is rated as an Experienced provider by MediFind in the treatment of Sinusitis. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses High Cholesterol, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

    Experienced in Sinusitis
    Internal Medicine
    Experienced in Sinusitis
    Internal Medicine

    Stanford Medicine Partners

    20642 John Dr, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Richard Ho is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Ho is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and High Cholesterol.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Stanford Medicine Partners

    20642 John Dr, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ling Xu is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Xu is rated as an Experienced provider by MediFind in the treatment of Sinusitis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Diabetic Hyperglycemic Hyperosmolar Syndrome, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Stanford Medicine Partners

    20642 John Dr, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Jade Bito is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Bito is rated as an Experienced provider by MediFind in the treatment of Sinusitis. Her clinical expertise encompasses High Cholesterol, Vitamin D Deficiency, Type 2 Diabetes (T2D), and Obesity in Children.

    Experienced in Sinusitis
    Experienced in Sinusitis

    Office

    22101 Redwood Rd Ste B, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Najibulrahman Saifulrahman is a primary care provider, practicing in General Practice in Castro Valley, California. Dr. Saifulrahman is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Tracheitis, Asthma, Opisthotonos, and Muscle Spasms.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Jean-Pierre L Viel

    19845 Lake Chabot Rd Ste 205, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rinku Shrivastava is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Shrivastava is rated as an Experienced provider by MediFind in the treatment of Sinusitis. Her clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Labyrinthitis.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Douglas D. Zhang M.D. Inc.

    13851 E 14th St Ste 102, 
    San Leandro, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    Douglas Zhang is a primary care provider, practicing in Family Medicine in San Leandro, California. Dr. Zhang is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Bronchitis.

    Experienced in Sinusitis
    Internal Medicine
    Experienced in Sinusitis
    Internal Medicine

    Chao Ho MD Inc.

    13847 E 14th St Ste 113, 
    San Leandro, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Chao Ho is a primary care provider, practicing in Internal Medicine in San Leandro, California. Dr. Ho is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Chronic Cough, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Office

    13847 E 14th St Ste 108, 
    San Leandro, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Christi Cheng is a primary care provider, practicing in Family Medicine in San Leandro, California. Dr. Cheng is rated as an Experienced provider by MediFind in the treatment of Sinusitis. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Diabetic Nephropathy, Type 2 Diabetes (T2D), Bronchitis, and High Cholesterol.

    Experienced in Sinusitis
    Experienced in Sinusitis

    R. S. Rajah M.D. Inc.

    13847 E 14th St Ste 112, 
    San Leandro, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    Dionisio Fernandes is a Pediatrics provider practicing medicine in San Leandro, California. Dr. Fernandes is rated as an Experienced provider by MediFind in the treatment of Sinusitis. His clinical expertise encompasses Allergic Rhinitis, Grass Allergy, and Sinusitis.

    Experienced in Sinusitis
    Internal Medicine
    Experienced in Sinusitis
    Internal Medicine

    Dr Aditya Jain MD Inc.

    1532 150th Ave, 
    Ashland, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Deepak Dhawan is a primary care provider, practicing in Internal Medicine in Ashland, California. Dr. Dhawan is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Restrictive Cardiomyopathy (RCM), Familial Hypertension, Hypertension, Gastrostomy, and Endoscopy.

    Experienced in Sinusitis
    General Surgery
    Experienced in Sinusitis
    General Surgery

    Office

    13847 E 14th St, 
    San Leandro, CA 
     (4.0 miles away)
    Languages Spoken:
    English

    Ronald Rubenstein is a General Surgeon practicing medicine in San Leandro, California. Dr. Rubenstein is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Swimmer's Ear, Trachoma, Jones Syndrome, and Laryngitis.

    Experienced in Sinusitis
    Internal Medicine
    Experienced in Sinusitis
    Internal Medicine

    St. Rose Hospital

    27200 Calaroga Ave, 
    Hayward, CA 
     (4.3 miles away)
    Languages Spoken:
    English

    Khashayar Montazeri is a primary care provider, practicing in Internal Medicine in Hayward, California. Dr. Montazeri is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Stroke, Sepsis, Pneumonia, Colonoscopy, and Gastrostomy.

    Experienced in Sinusitis
    Internal Medicine
    Experienced in Sinusitis
    Internal Medicine

    Hayward Pharmacy

    27212 Calaroga Ave, 
    Hayward, CA 
     (4.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Houman Sharifi is a primary care provider, practicing in Internal Medicine in Hayward, California. Dr. Sharifi is rated as an Experienced provider by MediFind in the treatment of Sinusitis. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Type 2 Diabetes (T2D), Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Sinusitis
    Internal Medicine
    Experienced in Sinusitis
    Internal Medicine

    Hayward Pharmacy

    27212 Calaroga Ave, 
    Hayward, CA 
     (4.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Nidhi Johri is a primary care provider, practicing in Internal Medicine in Hayward, California. Dr. Johri is rated as an Experienced provider by MediFind in the treatment of Sinusitis. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Acrospiroma, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Showing 1-20 of 228

    Last Updated: 04/28/2026

    What is the definition of Sinusitis?

    Sinusitis is present when the tissue lining the sinuses become swollen or inflamed. It occurs as the result of an inflammatory reaction or an infection from a virus, bacteria, or fungus.

    When should I see a Sinusitis doctor near Castro Valley, 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 Sinusitis doctor near Castro Valley, 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 Sinusitis doctors near Castro Valley, 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 Sinusitis doctors near Castro Valley, 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 Sinusitis doctor near Castro Valley, 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 Sinusitis doctor search results page. 

    Why is it important to get a second opinion from a different Sinusitis 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 Sinusitis doctor near Castro Valley, 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 Sinusitis 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 Sinusitis 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 Sinusitis doctors near Castro Valley, CA?

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

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