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    Last Updated: 01/09/2026

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    MediFind found 923 doctor with experience in Vitamin D Deficiency near Fullerton, CA. Of these, 840 are Experienced, 78 are Advanced and 5 are Distinguished.

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    923 providers found
      Advanced in Vitamin D Deficiency
      Endocrinology
      Advanced in Vitamin D Deficiency
      Endocrinology

      Providence Medical Foundation

      100 E Valencia Mesa Dr, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Michael Truong is an Endocrinologist in Fullerton, California. Dr. Truong is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Osteopenia, Melorheostosis, Melorheostosis with Osteopoikilosis, and Osteoporosis.

      Advanced in Vitamin D Deficiency
      Internal Medicine
      Advanced in Vitamin D Deficiency
      Internal Medicine
      2141 North Harbor Boulevard, Suite 25000, 
      Fullerton, CA 
       (2.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Leo Garcia is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Garcia is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are High Cholesterol, Sitosterolemia, Chronic Cough, and Vitamin D Deficiency.

      Advanced in Vitamin D Deficiency
      Rheumatology
      Advanced in Vitamin D Deficiency
      Rheumatology
      2141 North Harbor Boulevard, Suite 25000, 
      Fullerton, CA 
       (2.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Michelle Ngo is a Rheumatologist in Fullerton, California. Dr. Ngo is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Rheumatoid Arthritis (RA), Postmenopausal Osteoporosis, Osteoporosis, and Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome). Dr. Ngo is currently accepting new patients.

      Learn about our expert tiers
      Advanced in Vitamin D Deficiency
      Family Medicine
      Advanced in Vitamin D Deficiency
      Family Medicine
      801 North Harbor Boulevard, 
      Anaheim, CA 
       (2.9 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Youssef Beshai is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Beshai is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Obesity, Visceromegaly, Osteomyelitis in Children, and Glucocorticoid-Remediable Aldosteronism. Dr. Beshai is currently accepting new patients.

      Advanced in Vitamin D Deficiency
      Family Medicine
      Advanced in Vitamin D Deficiency
      Family Medicine
      419 West Chapman Avenue, 
      Placentia, CA 
       (4.1 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Don Garcia is a primary care provider, practicing in Family Medicine in Placentia, California. Dr. Garcia is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, High Cholesterol, and Cirrhosis. Dr. Garcia is currently accepting new patients.

      Distinguished in Vitamin D Deficiency
      Family Medicine
      Distinguished in Vitamin D Deficiency
      Family Medicine
      6301 Beach Blvd, Suite 109, 
      Buena Park, CA 
       (4.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Martin Ahn is a primary care provider, practicing in Family Medicine in Buena Park, California. Dr. Ahn is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Cirrhosis, Familial Combined Hyperlipidemia, Xanthoma, and Transcobalamin Deficiency.

      Advanced in Vitamin D Deficiency
      Family Medicine
      Advanced in Vitamin D Deficiency
      Family Medicine
      955 West Imperial Highway, Suite 200, 
      Brea, CA 
       (4.5 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      James Yoon is a primary care provider, practicing in Family Medicine in Brea, California. Dr. Yoon is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin D Deficiency, Osteomyelitis in Children, High Cholesterol, and Type 2 Diabetes (T2D). Dr. Yoon is currently accepting new patients.

      Experienced in Vitamin D Deficiency
      Internal Medicine
      Experienced in Vitamin D Deficiency
      Internal Medicine
      400 North Euclid Street, 
      Fullerton, CA 
       (0.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      John Lee is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Osteomyelitis in Children, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension.

      Experienced in Vitamin D Deficiency
      Endocrinology
      Experienced in Vitamin D Deficiency
      Endocrinology
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      John Gilbert is an Endocrinologist in Fullerton, California. Dr. Gilbert is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Hashimoto Thyroiditis, Thyroid Nodule, and Obesity in Children.

      Experienced in Vitamin D Deficiency
      Obstetrics and Gynecology
      Experienced in Vitamin D Deficiency
      Obstetrics and Gynecology
      100 East Valencia Mesa Drive, Suite 215, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Gordon Gunn is an Obstetrics and Gynecologist in Fullerton, California. Dr. Gunn is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Menopause, Acute Cystitis, Vitamin D Deficiency, and Intestinal Parasitosis. Dr. Gunn is currently accepting new patients.

      Experienced in Vitamin D Deficiency
      Experienced in Vitamin D Deficiency
      100 East Valencia Mesa Drive, Suite 100, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Sridhar Reddy is a Nephrologist in Fullerton, California. Dr. Reddy is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Chronic Kidney Disease, Acute Kidney Failure, End-Stage Renal Disease (ESRD), and Necrosis. Dr. Reddy is currently accepting new patients.

      Experienced in Vitamin D Deficiency
      Nurse Practitioner | Registered Nurse
      Experienced in Vitamin D Deficiency
      Nurse Practitioner | Registered Nurse
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Experience:
      17+ years
      Languages Spoken:
      English
      Offers Telehealth

      Luminita Mann is a Registered Nurse provider in Fullerton, California. Dr. Mann has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Vitamin D Deficiency and Hypoparathyroidism.

      Experienced in Vitamin D Deficiency
      Experienced in Vitamin D Deficiency
      100 East Valencia Mesa Drive, Suite 100, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Nancy Hernandez is a Nephrologist in Fullerton, California. Dr. Hernandez is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are End-Stage Renal Disease (ESRD), Acute Kidney Failure, Chronic Kidney Disease, and Necrosis. Dr. Hernandez is currently accepting new patients.

      Experienced in Vitamin D Deficiency
      Endocrinology
      Experienced in Vitamin D Deficiency
      Endocrinology
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jason Ling is an Endocrinologist in Fullerton, California. Dr. Ling is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Postmenopausal Osteoporosis, Osteoporosis, Type 2 Diabetes (T2D), and Osteopenia.

      Experienced in Vitamin D Deficiency
      Endocrinology
      Experienced in Vitamin D Deficiency
      Endocrinology
      100 East Valencia Mesa Drive, Suite 105, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Steven Saltman is an Endocrinologist in Fullerton, California. Dr. Saltman is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Postmenopausal Osteoporosis, Osteoporosis, Hypothyroidism, and Thyroid Nodule.

      Experienced in Vitamin D Deficiency
      Experienced in Vitamin D Deficiency

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Karen Frankwich is an Endocrinologist in Fullerton, California. Dr. Frankwich is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Thyroid Nodule, Hypothyroidism, Obesity in Children, and Prolactinoma.

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

      Providence Medical Foundation

      1950 Sunny Crest Dr, Suite 2900, 
      Fullerton, CA 
       (1.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Mim Mulford is an Endocrinologist in Fullerton, California. Dr. Mulford is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Hypothyroidism, Obesity in Children, Thyroid Nodule, and Toxic Nodular Goiter.

      Experienced in Vitamin D Deficiency
      Family Medicine
      Experienced in Vitamin D Deficiency
      Family Medicine
      1211 West La Palma Avenue, Suite 707, 
      Anaheim, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Samir Azzam is a primary care provider, practicing in Family Medicine in Anaheim, California. Dr. Azzam is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Sepsis, Pneumonia, Hospital-Acquired Pneumonia, Gastrostomy, and Pacemaker Implantation. Dr. Azzam is currently accepting new patients.

      Experienced in Vitamin D Deficiency
      Internal Medicine
      Experienced in Vitamin D Deficiency
      Internal Medicine
      1001 East Chapman Avenue, Suite D, 
      Fullerton, CA 
       (1.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Jyotika Wali is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Wali is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Bronchiolitis Obliterans, Industrial Bronchitis, Tracheitis, and Enlarged Liver. Dr. Wali is currently accepting new patients.

      Experienced in Vitamin D Deficiency
      Cardiology
      Experienced in Vitamin D Deficiency
      Cardiology

      Natural Medicine And Preventative Health And Heart

      1001 E Chapman Ave Ste B, 
      Fullerton,, CA 
       (1.7 miles away)
      Languages Spoken:
      English

      John Zamarra is a Cardiologist in Fullerton,, California. Dr. Zamarra is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Atrial Fibrillation, Atherosclerosis, Coronary Heart Disease, and Angina.

      Showing 1-20 of 923

      Last Updated: 01/09/2026

      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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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 Fullerton, 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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