Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 10/30/2025

    Save doctors for later
    Sign Up
    Not sure about your diagnosis?
    Check Your Symptoms
    Already have a doctor?
    Find A Second Opinion

    MediFind found 15 doctor with experience in Vitamin B12 Deficiency near Santa Rosa, CA. Of these, 13 are Experienced and 2 are Advanced.

    Location
    LocationClose
    15 providers found
      Jarrod P. Holmes
      Advanced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology
      Advanced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology
      3555 Round Barn Circle, Suite A, 
      Santa Rosa, CA 
       (2.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Jarrod Holmes is a Hematologist Oncology specialist and a Hematologist in Santa Rosa, California. Dr. Holmes is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Waldenstrom Macroglobulinemia, Chronic Lymphocytic Leukemia (CLL), Breast Cancer, Non-Hodgkin Lymphoma, and Bone Marrow Aspiration. Dr. Holmes is currently accepting new patients.

      Advanced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology
      Advanced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology
      3555 Round Barn Circle, Suite A, 
      Santa Rosa, CA 
       (2.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Wes Lee is a Hematologist Oncology specialist and an Oncologist in Santa Rosa, California. Dr. Lee is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Pleuropulmonary Blastoma, Lung Cancer, Small Cell Lung Cancer (SCLC), and Childhood Iron Deficiency Anemia. Dr. Lee is currently accepting new patients.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology
      3555 Round Barn Circle, Suite A, 
      Santa Rosa, CA 
       (2.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Leroy Keiser is a Hematologist Oncology specialist and a Hematologist in Santa Rosa, California. Dr. Keiser is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Polycythemia Vera, and Richter Syndrome. Dr. Keiser is currently accepting new patients.

      Learn about our expert tiers
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      3555 Round Barn Circle, Suite A, 
      Santa Rosa, CA 
       (2.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Ian Anderson is a Hematologist Oncology provider in Santa Rosa, California. Dr. Anderson is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Pleuropulmonary Blastoma, Lung Cancer, Small Cell Lung Cancer (SCLC), Lung Adenocarcinoma, and Bone Marrow Aspiration. Dr. Anderson is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency
      3555 Round Barn Circle, Suite A, 
      Santa Rosa, CA 
       (2.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Christopher Simone is an Oncologist in Santa Rosa, California. Dr. Simone is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Choriocarcinoma, Teratoma of the Mediastinum, Testicular Cancer, and Multiple Myeloma. Dr. Simone is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology
      3555 Round Barn Circle, Suite A, 
      Santa Rosa, CA 
       (2.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Sara Keck is a Hematologist Oncology specialist and an Oncologist in Santa Rosa, California. Dr. Keck is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Paget Disease of the Breast, Myelodysplastic Syndrome (MDS), Waldenstrom Macroglobulinemia, and Virilizing Ovarian Tumor. Dr. Keck is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      5555 Montgomery Dr, 
      Santa Rosa, CA 
       (4.0 miles away)
      Languages Spoken:
      English

      David Greene is a primary care provider, practicing in Geriatrics and Internal Medicine in Santa Rosa, California. Dr. Greene is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Anemia, Alzheimer's Disease, Obesity in Children, and Hypothyroidism.

      Experienced in Vitamin B12 Deficiency
      Pediatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Pediatrics | Internal Medicine
      652 Petaluma Ave, Suite H, 
      Sebastopol, CA 
       (6.5 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Misty Zelk is a primary care provider, practicing in Pediatrics and Internal Medicine in Sebastopol, California. Dr. Zelk is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Hypothyroidism, Vitamin B12 Deficiency Anemia, Multiple Carboxylase Deficiency, and Folate Deficiency. Dr. Zelk is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine

      Napa Valley Family Medical Group Inc

      1222 Pine St, 
      Saint Helena, CA 
       (13.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Marie Hughes is a primary care provider, practicing in Family Medicine in Saint Helena, California. Dr. Hughes is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Mycoplasma Pneumonia, Relapsing Polychondritis, Perianal Streptococcal Cellulitis, and High Cholesterol.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine

      Napa Valley Family Medical Group Inc

      1222 Pine St, 
      Saint Helena, CA 
       (13.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Barry Brown is a primary care provider, practicing in Family Medicine in Saint Helena, California. Dr. Brown is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Type 2 Diabetes (T2D), Cirrhosis, and Familial Combined Hyperlipidemia.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      999 Adams St, Suite 303, 
      Saint Helena, CA 
       (14.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jonathan Wheeler is a primary care provider, practicing in Family Medicine in Saint Helena, California. Dr. Wheeler is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Chronic Cough, Vertigo, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      1116 B Street, 
      Petaluma, CA 
       (14.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      James Leoni is a primary care provider, practicing in Family Medicine in Petaluma, California. Dr. Leoni is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Urinary Tract Infection in Children, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hip Replacement, and Pacemaker Implantation.

      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology Oncology
      10 Woodland Road, 
      Saint Helena, CA 
       (14.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Tyler Kang is a Hematologist Oncology specialist and an Oncologist in Saint Helena, California. Dr. Kang is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Astrocytoma, Gliosarcoma, and Bone Marrow Aspiration. Dr. Kang is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology
      10 Woodland Road, 
      Saint Helena, CA 
       (14.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Ari Umutyan is a Hematologist Oncology specialist and a Hematologist in Saint Helena, California. Dr. Umutyan is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Primary Lymphoma of the Brain, Small Cell Lung Cancer (SCLC), Lung Adenocarcinoma, Large-Cell Immunoblastic Lymphoma, and Bone Marrow Aspiration. Dr. Umutyan is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology Oncology
      10 Woodland Road, 
      Saint Helena, CA 
       (14.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Ethan Schram is a Hematologist Oncology specialist and an Oncologist in Saint Helena, California. Dr. Schram is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Waldenstrom Macroglobulinemia, Neuroendocrine Tumor, and Bone Marrow Aspiration. Dr. Schram is currently accepting new patients.

      Showing 1-15 of 15

      Last Updated: 10/30/2025

      When should I see a Vitamin B12 Deficiency doctor near Santa Rosa, 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 B12 Deficiency doctor near Santa Rosa, 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 B12 Deficiency doctors near Santa Rosa, 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 B12 Deficiency doctors near Santa Rosa, 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 B12 Deficiency doctor near Santa Rosa, 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 B12 Deficiency doctor search results page. 

      Why is it important to get a second opinion from a different Vitamin B12 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 B12 Deficiency doctor near Santa Rosa, 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 B12 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 B12 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 B12 Deficiency doctors near Santa Rosa, CA?

      Look for the filter feature on the left side of the Vitamin B12 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 B12 Deficiency doctor that offers video calls?

      Look for the filter feature on the left-side of the Vitamin B12 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 

      Read more about our Content Policy