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    Last Updated: 10/30/2025

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    MediFind found 106 doctor with experience in Vitamin B12 Deficiency near Orange, CA. Of these, 95 are Experienced and 11 are Advanced.

    Location
    LocationClose
    106 providers found
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      Uc Regents

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

      Misagh Karimi is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Karimi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Breast Cancer, Familial Colorectal Cancer, Colorectal Cancer, and Paget Disease of the Breast.

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

      City Of Hope Medical Foundation

      16300 Sand Canyon Ave, Suite 207, 
      Irvine, CA 
       (10.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Danny Nguyen is a Hematologist Oncology specialist and a Hematologist in Irvine, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Pleuropulmonary Blastoma, Lynch Syndrome, Colorectal Cancer, and Familial Colorectal Cancer.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      16300 Sand Canyon Ave, Suite 207, 
      Irvine, CA 
       (10.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Sudarsan Kollimuttathuillam is a Hematologist Oncology specialist and a Hematologist in Irvine, California. Dr. Kollimuttathuillam is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Iron Deficiency Anemia, Childhood Iron Deficiency Anemia, Dehydration, and Agranulocytosis.

      Learn about our expert tiers
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      16300 Sand Canyon Ave, Suite 207, 
      Irvine, CA 
       (10.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Luke Chen is a Hematologist Oncology specialist and a Hematologist in Irvine, California. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Clear Cell Sarcoma, Renal Cell Carcinoma (RCC), Chromophobe Renal Cell Carcinoma, WT1-Related Wilms Tumor Syndromes, and Prostatectomy.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      845 East Chapman Avenue, 
      Orange, CA 
       (0.6 miles away)
      Languages Spoken:
      English

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

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency
      932 E Chapman Ave, 
      Orange, CA 
       (0.7 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
      Hematology
      Experienced in Vitamin B12 Deficiency
      Hematology
      1100 West Stewart Drive, 
      Orange, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      John Wong is a Hematologist 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, Adult Soft Tissue Sarcoma, Monoclonal Gammopathy of Undetermined Significance (MGUS), and Clear Cell Sarcoma.

      Experienced in Vitamin B12 Deficiency
      Endocrinology
      Experienced in Vitamin B12 Deficiency
      Endocrinology
      1140 W La Veta Ave, Suite 420, 
      Orange, CA 
       (0.8 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).

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency
      363 South Main Street, Suite 485, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Stavroula Otis is a Hematologist 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 Breast Cancer, Paget Disease of the Breast, Pleuropulmonary Blastoma, and Familial Prostate Cancer.

      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      1010 W La Veta Ave Ste 200, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English

      Tiberio Lindgren is a Hematologist Oncology provider 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
      1010 West La Veta Avenue, Suite 200, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      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, Angiosarcoma, and Pleuropulmonary Blastoma. Dr. Mahmood is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Nephrology
      Experienced in Vitamin B12 Deficiency
      Nephrology
      500 South Main Street, Suite 101, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Cuong Ly is a Nephrologist in Orange, California. Dr. Ly is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Acute Kidney Failure, Chronic Kidney Disease, End-Stage Renal Disease (ESRD), and Necrosis. Dr. Ly is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      1234 West Chapman Avenue, Suite 101, 
      Orange, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Uzma Ahmed is a primary care provider, practicing in Internal Medicine in Orange, California. Dr. Ahmed 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, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Ahmed is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      438 E Katella Ave, Suite B, 
      Orange, CA 
       (1.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Soledad Lee is a primary care provider, practicing in Internal Medicine in Orange, California. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Tracheitis, Otitis, Costochondritis, and Tietz Syndrome.

      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 
       (2.0 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
      Hematology Oncology | Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Khosrow Mahdavi is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Mahdavi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Myelodysplastic Syndrome (MDS), Inflammatory Breast Cancer, Hemochromatosis, Paget Disease of the Breast, and Bone Marrow Aspiration.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 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), D-Plus Hemolytic Uremic Syndrome, Hemolytic-Uremic Syndrome, Kidney Transplant, and Parathyroidectomy.

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

      Uc Regents

      101 The City Dr S, Uci Dept Of Medicine, 
      Orange, CA 
       (2.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Gol Golshani is a Hematologist Oncology specialist and a Hematologist in Orange, California. Dr. Golshani is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Chronic Familial Neutropenia, and Agranulocytosis.

      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 
       (2.0 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
      801 North Tustin Avenue, Suite 703, 
      Santa Ana, CA 
       (2.7 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.

      Showing 1-20 of 106

      Last Updated: 10/30/2025

      When should I see a Vitamin B12 Deficiency doctor near Orange, 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 Orange, 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 Orange, 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 Orange, 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 Orange, 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 Orange, 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 Orange, 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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