The 20 Best Vitamin D Deficiency Doctors Near Me in Castro Valley, CA

Find the Top Vitamin D Deficiency Experts and Specialists

The 20 Best Vitamin D Deficiency Doctors near Castro Valley, CA

Last Updated: 02/22/2026

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MediFind found 245 doctor with experience in Vitamin D Deficiency near Castro Valley, CA. Of these, 216 are Experienced and 29 are Advanced.

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245 providers found
    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Stanford Medicine Partners

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

    Stanley Tan is an Endocrinologist in Castro Valley, California. Dr. Tan is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Autoimmune Polyglandular Syndrome Type 2, IPEX Syndrome, Autoimmune Polyendocrinopathy-Candidiasis-Ectodermal Dystrophy (APECED), and Thyroid Storm.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency

    Nabil K Abudayeh MD Professional Corp.

    20700 Lake Chabot Rd Ste 107, 
    Castro Valley,, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Nabil Abudayeh is a Cardiologist in Castro Valley,, California. Dr. Abudayeh is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Heart Murmurs, Carotid Artery Disease, Arterial Embolism, Gastrostomy, and Endoscopy.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    David C. Bradshaw M.D. APC

    19830 Lake Chabot Rd Ste C, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Deepa Vincent is an Endocrinologist in Castro Valley, California. Dr. Vincent is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Type 2 Diabetes (T2D), Low Blood Sugar, Thyroid Storm, and Postmenopausal Osteoporosis.

    Learn about our expert tiers
    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Diablo Infectious Disease Consultative Service Med GRP. Inc.

    13851 E 14th St Ste 308, 
    San Leandro, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Shwetha Anand is an Endocrinologist in San Leandro, California. Dr. Anand is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Milk-Alkali Syndrome, Idiopathic Hypercalciuria, Hypercalcemia, and Familial Hypocalciuric Hypercalcemia Type 1.

    Advanced in Vitamin D Deficiency
    Family Medicine
    Advanced in Vitamin D Deficiency
    Family Medicine

    Stanford Medicine Partners

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

    Jaya Karnani is a Family Medicine provider in Castro Valley, California. Dr. Karnani is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Vitamin D Deficiency, Vaginal Cysts, Vaginal Dryness, and Neuralgia.

    Marcia C. Peck
    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Castro Valley Care Center

    20101 Lake Chabot Road, Floor 4, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Marcia Peck is an Endocrinologist in Castro Valley, California. Dr. Peck is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Osteoporosis, Postmenopausal Osteoporosis, Type 2 Diabetes (T2D), and Hyperparathyroidism.

    Jyothi Bachwani
    Experienced in Vitamin D Deficiency
    Internal Medicine
    Experienced in Vitamin D Deficiency
    Internal Medicine

    Castro Valley Care Center

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

    Jyothi Bachwani is a primary care provider, practicing in Internal Medicine in Castro Valley, California. Dr. Bachwani is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Diabetic Neuropathy, Type 2 Diabetes (T2D), Familial HDL Deficiency, and Tangier Disease. Dr. Bachwani is currently accepting new patients.

    Advanced in Vitamin D Deficiency
    Family Medicine
    Advanced in Vitamin D Deficiency
    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 Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Diabetic Nephropathy, Type 2 Diabetes (T2D), Bronchitis, and High Cholesterol.

    Advanced in Vitamin D Deficiency
    Cardiology | Cardiac Electrophysiology
    Advanced in Vitamin D Deficiency
    Cardiology | Cardiac Electrophysiology

    West Coast Medicine And Cardiology Inc

    27171 Calaroga Ave, Suite 2, 
    Hayward, CA 
     (4.4 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English, Filipino, Hindi, Punjabi
    Offers Telehealth

    Rajesh Suri is a Cardiologist and a Cardiac Electrophysiologist in Hayward, California. Dr. Suri has been practicing medicine for over 44 years and is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Varicose Veins, Stasis Dermatitis and Ulcers, Venous Insufficiency, Gastrostomy, and Endoscopy.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine
    20700 Lake Chabot Rd, Suite #107, 
    Castro Valley, CA 
     (0.7 miles away)
    Languages Spoken:
    English

    Paul Robinson is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Robinson is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Nephrosclerosis, Renovascular Hypertension, Type 2 Diabetes (T2D), and Nephrotic Syndrome.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    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 Vitamin D Deficiency. Her top areas of expertise are High Cholesterol, Vitamin D Deficiency, Type 2 Diabetes (T2D), and Obesity in Children.

    Experienced in Vitamin D Deficiency
    Internal Medicine
    Experienced in Vitamin D Deficiency
    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 Vitamin D Deficiency. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and High Cholesterol.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    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 Vitamin D Deficiency. Her top areas of expertise are High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    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 Vitamin D Deficiency. Her top areas of expertise are Dementia, Diabetic Hyperglycemic Hyperosmolar Syndrome, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    Stanford Medicine Partners

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

    Christopher Moore is a primary care provider, practicing in Family Medicine in Castro Valley, California. Dr. Moore is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are High Cholesterol, Insomnia, Type 2 Diabetes (T2D), and Hypertension.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency

    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 Vitamin D Deficiency. His top areas of expertise are Tracheitis, Asthma, Opisthotonos, and Muscle Spasms.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency

    University Healthcare Alliance

    20055 Lake Chabot Rd Ste 130, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Nitin Joshi is an Oncologist in Castro Valley, California. Dr. Joshi is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Gastroesophageal Junction Cancer, and Lung Cancer.

    Experienced in Vitamin D Deficiency
    Nurse Practitioner
    Experienced in Vitamin D Deficiency
    Nurse Practitioner
    19400 Santa Maria Ave Rm P7p8, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Yifan Zhang is a Nurse Practitioner in Castro Valley, California. Ms. Zhang is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top area of expertise is Vitamin D Deficiency.

    Experienced in Vitamin D Deficiency
    Neurology
    Experienced in Vitamin D Deficiency
    Neurology

    Office

    20055 Lake Chabot Rd Ste 250, 
    Castro Valley, CA 
     (1.3 miles away)
    Languages Spoken:
    English

    Barry Mann is a Neurologist in Castro Valley, California. Dr. Mann is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Congenital Insensitivity to Pain with Anhidrosis, Infantile Axonal Neuropathy, Hereditary Sensory and Autonomic Neuropathy Type 2, and Peripheral Neuropathy.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    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 Vitamin D Deficiency. Her top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Labyrinthitis.

    Showing 1-20 of 245

    Last Updated: 02/22/2026

    What is the definition of Vitamin D Deficiency?

    Vitamin D deficiency is when the body does not have enough vitamin D. Vitamin D is necessary for absorbing calcium and healthy bones.

    When should I see a Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency 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 Vitamin D Deficiency doctors near Castro Valley, CA?

    Look for the filter feature on the left side of the Vitamin D Deficiency 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 Vitamin D Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Vitamin D Deficiency 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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