The 20 Best COVID-19 Doctors Near Me in Castro Valley, CA

Find the Top COVID-19 Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 304 doctor with experience in COVID-19 near Castro Valley, CA. Of these, 277 are Experienced, 25 are Advanced and 1 are Distinguished.

Location
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304 providers found
    Advanced in COVID-19
    Family Medicine
    Advanced in COVID-19
    Family Medicine

    Alameda Family Physician Medical Group Inc.

    2433 Central Ave, 
    Alameda, CA 
     (10.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Vijay Mirmira is a primary care provider, practicing in Family Medicine in Alameda, California. Dr. Mirmira is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and High Cholesterol. Dr. Mirmira is currently accepting new patients.

    Advanced in COVID-19
    Family Medicine
    Advanced in COVID-19
    Family Medicine

    Stanford Medicine Partners Pleasanton

    5568 Gibraltar Dr, 
    Pleasanton, CA 
     (13.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    John Carper is a primary care provider, practicing in Family Medicine in Pleasanton, California. Dr. Carper is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension. Dr. Carper is currently accepting new patients.

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Stanford Medicine Partners

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

    Houman Sharifi is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Sharifi is rated as an Experienced provider by MediFind in the treatment of COVID-19. 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 Familial Hypertension. Dr. Sharifi is currently accepting new patients.

    Are you looking for a specific type of COVID-19?

    Common conditions include: Long Haul COVID

    Learn about our expert tiers
    Experienced in COVID-19
    Family Medicine
    Experienced in COVID-19
    Family Medicine

    Stanford Medicine Partners

    20642 John Dr, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    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 COVID-19. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Diabetic Hyperglycemic Hyperosmolar Syndrome, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Xu is currently accepting new patients.

    Experienced in COVID-19
    Experienced in COVID-19

    Office

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

    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 COVID-19. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Tracheitis, Asthma, Opisthotonos, and Muscle Spasms. Dr. Saifulrahman is currently accepting new patients.

    Advanced in COVID-19
    Infectious Disease
    Advanced in COVID-19
    Infectious Disease
    Referral may be required

    Cityhealth Urgent Care

    201 Dolores Ave, 
    San Leandro, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jeffrey Klausner is an Infectious Disease provider practicing medicine in San Leandro, California. Dr. Klausner is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Gonorrhea, Syphilis, Chlamydia, and HIV/AIDS.

    Advanced in COVID-19
    Family Medicine
    Advanced in COVID-19
    Family Medicine

    Stanford Medicine Partners

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

    Jaya Karnani is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Karnani is rated as an Advanced provider by MediFind in the treatment of COVID-19. She is also highly rated in 46 other conditions, according to our data. Her clinical expertise encompasses Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, Sciatica, and Type 2 Diabetes (T2D).

    Advanced in COVID-19
    Internal Medicine
    Advanced in COVID-19
    Internal Medicine

    Hayward Healthcare & Wellness Center

    1805 West St, 
    Hayward, CA 
     (4.2 miles away)
    Languages Spoken:
    English

    James Yeh is a primary care provider, practicing in Internal Medicine in Hayward, California. Dr. Yeh is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Renovascular Hypertension, Sepsis, End-Stage Renal Disease (ESRD), Endoscopy, and Hip Replacement.

    Advanced in COVID-19
    Internal Medicine
    Advanced in COVID-19
    Internal Medicine

    Roy Medical Assoc Inc

    5601 Norris Canyon Rd Ste 340, 
    San Ramon, CA 
     (6.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bakul Roy is a primary care provider, practicing in Internal Medicine in San Ramon, California. Dr. Roy is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and High Cholesterol. Dr. Roy is currently accepting new patients.

    Advanced in COVID-19
    Family Medicine
    Advanced in COVID-19
    Family Medicine

    Office

    12677 Alcosta Blvd Ste 230, 
    San Ramon, CA 
     (6.9 miles away)
    Languages Spoken:
    English, Farsi, Spanish
    Accepting New Patients
    Offers Telehealth

    Afsheen Mostofi is a primary care provider, practicing in Family Medicine in San Ramon, California. Dr. Mostofi is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, Cirrhosis, and Familial Combined Hyperlipidemia. Dr. Mostofi is currently accepting new patients.

    Advanced in COVID-19
    Internal Medicine
    Advanced in COVID-19
    Internal Medicine

    San Ramon Primary Care Medical Group Inc

    200 Porter Dr Ste 300, 
    San Ramon, CA 
     (7.1 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Paul Wheeler is a primary care provider, practicing in Internal Medicine in San Ramon, California. Dr. Wheeler is rated as an Advanced provider by MediFind in the treatment of COVID-19. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Multisystem Inflammatory Syndrome in Children (MIS-C). Dr. Wheeler is currently accepting new patients.

    Distinguished in COVID-19
    Internal Medicine
    Distinguished in COVID-19
    Internal Medicine

    Htay Win MD

    3458 Mowry Ave, 
    Fremont, CA 
     (11.0 miles away)
    Languages Spoken:
    English, Burmese
    Accepting New Patients

    Htay Win is a primary care provider, practicing in Internal Medicine in Fremont, California. Dr. Win is rated as a Distinguished provider by MediFind in the treatment of COVID-19. He is also highly rated in 59 other conditions, according to our data. His clinical expertise encompasses Necrosis, Sepsis, Acute Coronary Syndrome, Gastrostomy, and Endoscopy. Dr. Win is currently accepting new patients.

    Experienced in COVID-19
    Family Medicine
    Experienced in COVID-19
    Family Medicine

    Bay Imaging Consultants Medical Group Inc.

    20101 Lake Chabot Rd, 
    Castro Valley, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Nicole Devalle is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Devalle is rated as an Experienced provider by MediFind in the treatment of COVID-19. Her clinical expertise encompasses Sepsis, Ogilvie Syndrome, Pulmonary Embolism, and Chronic Obstructive Pulmonary Disease (COPD).

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Eden Medical Center

    20103 Lake Chabot Rd, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Sandy Ramirez is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Ramirez is rated as an Experienced provider by MediFind in the treatment of COVID-19. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Sepsis, Stroke, Acute Kidney Failure, Pacemaker Implantation, and Endoscopy.

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Eden Medical Center

    20103 Lake Chabot Rd, 
    Castro Valley, CA 
     (0.9 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients

    Oluwaseyi Balasire is a primary care provider, practicing in Internal Medicine in Castro Valley, California. He has been practicing medicine for over 17 years. Dr. Balasire is rated as an Experienced provider by MediFind in the treatment of COVID-19. His clinical expertise encompasses Sepsis, Peptic Ulcer, Necrosis, and Acute Kidney Failure. Dr. Balasire is currently accepting new patients.

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Eden Medical Center

    20103 Lake Chabot Rd, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Moyra Rasheed is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Rasheed is rated as an Experienced provider by MediFind in the treatment of COVID-19. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Sepsis, Peptic Ulcer, Necrosis, Ureteroscopy, and Pacemaker Implantation.

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Eden Medical Center

    20103 Lake Chabot Rd, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Gevorg Ghazaryan is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Ghazaryan is rated as an Experienced provider by MediFind in the treatment of COVID-19. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Sepsis, Stroke, Apoplexy, Gastrostomy, and Endoscopy.

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Eden Medical Center

    20103 Lake Chabot Rd, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Ezekiel Volkert is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Volkert is rated as an Experienced provider by MediFind in the treatment of COVID-19. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Sepsis, Stroke, Apoplexy, Gastrostomy, and Endoscopy.

    Experienced in COVID-19
    Infectious Disease
    Experienced in COVID-19
    Infectious Disease
    Referral may be required

    Valley Pointe Nursing & Rehabilitation Center

    20090 Stanton Ave, 
    Castro Valley, CA 
     (0.9 miles away)
    Languages Spoken:
    English

    Saima Mahmood is an Infectious Disease provider practicing medicine in Castro Valley, California. Dr. Mahmood is rated as an Experienced provider by MediFind in the treatment of COVID-19. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Hospital-Acquired Pneumonia, Pneumonia, Bacterial Gastroenteritis, and Lymphangitis.

    Experienced in COVID-19
    Internal Medicine
    Experienced in COVID-19
    Internal Medicine

    Stanford Medicine Partners

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

    Nidhi Johri is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Johri is rated as an Experienced provider by MediFind in the treatment of COVID-19. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Acrospiroma, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension.

    Showing 1-20 of 304

    Last Updated: 09/26/2026

    What is the definition of COVID-19?

    Coronavirus disease 2019 (COVID-19) is a respiratory illness that causes fever, coughing, and shortness of breath, but many other symptoms can occur. COVID-19 is caused by a highly infectious virus. Most people get mild to moderate illness. Older adults and people with certain health conditions are at high risk for severe illness and death. More than one million people in the United States have died from COVID-19.

    When should I see a COVID-19 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 COVID-19 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 COVID-19 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 COVID-19 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 COVID-19 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 COVID-19 doctor search results page. 

    Why is it important to get a second opinion from a different COVID-19 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 COVID-19 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 COVID-19 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 COVID-19 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 COVID-19 doctors near Castro Valley, CA?

    Look for the filter feature on the left side of the COVID-19 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 COVID-19 doctor that offers video calls?

    Look for the filter feature on the left-side of the COVID-19 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 

    Read more about our Content Policy. 

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