The 20 Best Vitamin B12 Deficiency Doctors Near Me in Santa Ana, CA

Find the Top Vitamin B12 Deficiency Experts and Specialists

The 20 Best Vitamin B12 Deficiency Doctors near Santa Ana, CA

Last Updated: 02/22/2026

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MediFind found 111 doctor with experience in Vitamin B12 Deficiency near Santa Ana, CA. Of these, 101 are Experienced and 10 are Advanced.

Location
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111 providers found
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology
    1100 West Stewart Drive, 
    Orange, CA 
     (2.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    John Wong is a Hematologist Oncology provider in Orange, California. Dr. Wong is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Large-Cell Immunoblastic Lymphoma, Monoclonal Gammopathy of Undetermined Significance (MGUS), Burkitt Lymphoma, and Diffuse Large B-Cell Lymphoma (DLBCL). Dr. Wong is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Hematology Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology
    363 South Main Street, Suite 485, 
    Orange, CA 
     (3.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Stavroula Otis is a Hematologist Oncology provider in Orange, California. Dr. Otis is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Follicular Lymphoma, Myelodysplastic Syndrome (MDS), Agranulocytosis, and Anemia. Dr. Otis is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Endocrinology
    Experienced in Vitamin B12 Deficiency
    Endocrinology

    Endocrine Consultants And Specialists Medical Group Inc

    1140 W La Veta Ave Ste 420, 
    Orange, CA 
     (3.0 miles away)
    Languages Spoken:
    English

    Samuel Mayeda is an Endocrinologist in Orange, California. Dr. Mayeda is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Rickets, Osteomalacia, Vitamin D Deficiency, and Type 2 Diabetes (T2D).

    Learn about our expert tiers
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology
    1010 West La Veta Avenue, Suite 200, 
    Orange, CA 
     (3.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Tariq Mahmood is a Hematologist Oncology provider in Orange, California. Dr. Mahmood is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Breast Cancer, Paget Disease of the Breast, Familial Colorectal Cancer, and Angiosarcoma. Dr. Mahmood is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Internal Medicine
    Advanced in Vitamin B12 Deficiency
    Internal Medicine

    Compassionate Cancer Care Medical Group Inc.

    11180 Warner Ave, 
    Fountain Valley, CA 
     (4.3 miles away)
    Experience:
    15+ years
    Languages Spoken:
    English
    Offers Telehealth

    Derrick Su is an Internal Medicine provider in Fountain Valley, California. Dr. Su has been practicing medicine for over 15 years and is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Splenic Neoplasm, Thrombocytopenia, Lung Cancer, and Pleuropulmonary Blastoma.

    Advanced in Vitamin B12 Deficiency
    Family Medicine
    Advanced in Vitamin B12 Deficiency
    Family Medicine
    10741 Westminster Ave, Suite 100, 
    Garden Grove, CA 
     (4.4 miles away)
    Languages Spoken:
    English

    Mary Tran is a primary care provider, practicing in Family Medicine in Garden Grove, California. Dr. Tran is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Tension Headache, Cyclic Neutropenia, Swallowing Difficulty, Gastrostomy, and Hemorrhoidectomy.

    Experienced in Vitamin B12 Deficiency
    Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Internal Medicine

    Community Medical Center

    301 N Main St, 
    Santa Ana, CA 
     (0.1 miles away)
    Experience:
    41+ years
    Languages Spoken:
    English

    Shehnaz Habib is a primary care provider, practicing in Internal Medicine in Santa Ana, California. Dr. Habib has been practicing medicine for over 41 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Type 2 Diabetes (T2D), High Cholesterol, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Gastrostomy.

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

    Saint Youstina

    809 S Main St, 
    Santa Ana, CA 
     (0.5 miles away)
    Languages Spoken:
    English

    Isaac Beshay is a primary care provider, practicing in Family Medicine in Santa Ana, California. Dr. Beshay is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Experienced in Vitamin B12 Deficiency
    Family Medicine | Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine | Internal Medicine

    Good Samaritan Medical Clinic

    1800 N Bush St, 
    Santa Ana, CA 
     (1.1 miles away)
    Experience:
    34+ years
    Languages Spoken:
    English
    Offers Telehealth

    Youssef Beshai is a primary care provider, practicing in Internal Medicine and Family Medicine in Santa Ana, California. Dr. Beshai has been practicing medicine for over 34 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Obesity, Visceromegaly, Osteomyelitis in Children, and Familial Hypertension.

    Experienced in Vitamin B12 Deficiency
    Family Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine
    801 North Tustin Avenue, Suite 703, 
    Santa Ana, CA 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Thomas Badin is a primary care provider, practicing in Family Medicine in Santa Ana, California. Dr. Badin is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Diffuse Panbronchiolitis, Insomnia, Glossitis, and Pernicious Anemia.

    Experienced in Vitamin B12 Deficiency
    Family Medicine | Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine | Internal Medicine

    Ajay G. Meka, MD Inc

    2740 S Bristol St, 
    Santa Ana, CA 
     (2.7 miles away)
    Experience:
    50+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ajay Meka is a primary care provider, practicing in Internal Medicine and Family Medicine in Santa Ana, California. Dr. Meka has been practicing medicine for over 50 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Osteomyelitis in Children, Hypertensive Heart Disease, Type 2 Diabetes (T2D), and Enlarged Liver.

    Experienced in Vitamin B12 Deficiency
    Experienced in Vitamin B12 Deficiency

    Hematology Oncology Medical Group

    1010 W La Veta Ave Ste 200, 
    Orange, CA 
     (3.0 miles away)
    Languages Spoken:
    English

    Tiberio Lindgren is an Oncologist in Orange, California. Dr. Lindgren is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Small Cell Lung Cancer (SCLC), Lung Cancer, Pleuropulmonary Blastoma, and Inflammatory Breast Cancer.

    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology

    Hematology Oncology Medical Group

    1010 W La Veta Ave Ste 200, 
    Orange, CA 
     (3.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Cindy Tran is a Hematologist and an Oncologist in Orange, California. Dr. Tran 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, Breast Cancer, Angiosarcoma, and Inflammatory Breast Cancer.

    Experienced in Vitamin B12 Deficiency
    Nurse Practitioner
    Experienced in Vitamin B12 Deficiency
    Nurse Practitioner

    Miyoco Medical Group

    15975 Harbor Blvd, 
    Fountain Valley, CA 
     (3.2 miles away)
    Languages Spoken:
    English

    Marie Basa is a Nurse Practitioner in Fountain Valley, California. Ms. Basa is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vitamin B12 Deficiency and Vitamin D Deficiency.

    Experienced in Vitamin B12 Deficiency
    Hematology Oncology | Hematology
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology | Hematology

    Uc Regents

    101 The City Dr S, 
    Orange, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Andreea Nanci is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Nanci is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Inflammatory Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Chronic Lymphocytic Leukemia (CLL).

    Experienced in Vitamin B12 Deficiency
    Nephrology
    Experienced in Vitamin B12 Deficiency
    Nephrology

    UCI Health

    101 The City Dr S, 
    Orange, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ramy Hanna is a Nephrologist in Orange, California. Dr. Hanna is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Atypical Hemolytic Uremic Syndrome (aHUS), Hemolytic-Uremic Syndrome, D-Plus Hemolytic Uremic Syndrome, Kidney Transplant, and Parathyroidectomy.

    Experienced in Vitamin B12 Deficiency
    Geriatrics | Family Medicine
    Experienced in Vitamin B12 Deficiency
    Geriatrics | Family Medicine

    Regents Of The University Of

    101 The City Dr S, 
    Orange, CA 
     (3.2 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Renee Pace is a primary care provider, practicing in Geriatrics and Family Medicine in Orange, California. Dr. Pace has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Nephrosclerosis, Renovascular Hypertension, Diabetic Nephropathy, and Infant Hyperglycemia. Dr. Pace is currently accepting new patients.

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

    Fernando Montelongo, MD

    932 E Chapman Ave, 
    Orange, CA 
     (3.2 miles away)
    Languages Spoken:
    English

    Fernando Montelongo is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Montelongo is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Familial Hypertriglyceridemia, Type 1 Diabetes (T1D), Nonbacterial Prostatitis, and Bacterial Prostatitis.

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

    Optum - Chapman

    845 E Chapman Ave, 
    Orange, CA 
     (3.2 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English

    Ana Fajardo is a primary care provider, practicing in Family Medicine in Orange, California. Dr. Fajardo has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Gardner-Diamond Syndrome, Purpura, Autoerythrocyte Sensitivity, and Cirrhosis.

    Experienced in Vitamin B12 Deficiency
    Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Internal Medicine

    Omid Vesal MD Medical Corporation

    2500 Alton Pkwy Ste 101, 
    Irvine, CA 
     (3.7 miles away)
    Languages Spoken:
    English

    Omid Vesal is a primary care provider, practicing in Internal Medicine in Irvine, California. Dr. Vesal is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Dehydration, Pneumonia, Androgen Insensitivity Syndrome, and Neuralgia.

    Showing 1-20 of 111

    Last Updated: 02/22/2026

    When should I see a Vitamin B12 Deficiency doctor near Santa Ana, 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 Ana, 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 Ana, 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 Ana, 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 Ana, 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 Ana, 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 Ana, 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 

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