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    Last Updated: 10/30/2025

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    MediFind found 41 doctor with experience in Vitamin B12 Deficiency near Mission Viejo, CA. Of these, 38 are Experienced and 2 are Advanced.

    Location
    LocationClose
    41 providers found
      Geriatrics | Internal Medicine
      Geriatrics | Internal Medicine

      Celebrating Life Community Health Center

      27800 Medical Center Road, Suite 109, 
      Mission Viejo, CA 
       (2.6 miles away)
      Languages Spoken:
      English, Arabic
      Accepting New Patients
      Offers Telehealth

      Samir Ahmad is a primary care provider, practicing in Geriatrics and Internal Medicine in Mission Viejo, California. His top areas of expertise are Umbilical Hernia, Omphalocele, Scabies, and Bullae. Dr. Ahmad is currently accepting new patients in some locations.

      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 
       (7.9 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 
       (7.9 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 
       (7.9 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
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      26302 La Paz Rd, Suite 211, 
      Mission Viejo, CA 
       (0.8 miles away)
      Languages Spoken:
      English

      Bruce Seligsohn is a primary care provider, practicing in Internal Medicine in Mission Viejo, California. Dr. Seligsohn is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Gardner-Diamond Syndrome, Autoerythrocyte Sensitivity, Purpura, and Maturity Onset Diabetes of the Young.

      Experienced in Vitamin B12 Deficiency
      Gastroenterology
      Experienced in Vitamin B12 Deficiency
      Gastroenterology
      27799 Medical Center Road, Suite 320, 
      Mission Viejo, CA 
       (1.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Douglas Nguyen is a Gastroenterologist in Mission Viejo, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Colonoscopy, and Endoscopy.

      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      27799 Medical Center Road, Suite 460, 
      Mission Viejo, CA 
       (1.1 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Minch Fong is a Hematologist Oncology provider in Mission Viejo, California. Dr. Fong is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Laryngeal Cancer, Pleuropulmonary Blastoma, Posterior Fossa Tumor, and Primitive Neuroectodermal Tumor (PNET). Dr. Fong is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      26691 Plaza, Ste. 200, 
      Mission Viejo, CA 
       (2.2 miles away)
      Languages Spoken:
      English

      Lloyd Nagasawa is a Hematologist Oncology provider in Mission Viejo, California. Dr. Nagasawa 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, Inflammatory Breast Cancer, and Classical Hodgkin Lymphoma.

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

      Saddleback Medical Group Inc

      Laguna Hills, CA 
       (2.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Kimvir Dhillon is an Endocrinologist in Laguna Hills, California. Dr. Dhillon is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Hypothyroidism, Rickets, Osteomalacia, and Obesity in Children.

      Experienced in Vitamin B12 Deficiency
      General Surgery | Surgical Oncology
      Experienced in Vitamin B12 Deficiency
      General Surgery | Surgical Oncology

      Memorialcare Medical Foundation

      Laguna Hills, CA 
       (2.3 miles away)
      Languages Spoken:
      English

      Amy Bremner is a General Surgeon and a Surgical Oncologist in Laguna Hills, California. Dr. Bremner 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, Intraductal Papilloma, Lymphadenectomy, and Mastectomy.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Laguna Hills, CA 
       (2.3 miles away)
      Languages Spoken:
      English

      Raymond Fernandez is a primary care provider, practicing in Internal Medicine in Laguna Hills, California. Dr. Fernandez is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Hypothyroidism, Gastroesophageal Reflux Disease (GERD), and Type 2 Diabetes (T2D).

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

      Memorialcare Medical Foundation

      24411 Health Ctr Dr, Suite 320, 
      Laguna Hills, CA 
       (2.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jacqueline Malekirad is a Hematologist Oncology specialist and a Hematologist in Laguna Hills, California. Dr. Malekirad is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Subacute Combined Degeneration, Folate Deficiency, Multiple Carboxylase Deficiency, and Vitamin B12 Deficiency Anemia.

      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology
      26732 Crown Valley Parkway, Suite 271, 
      Mission Viejo, CA 
       (2.4 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Nawid Sarwari is a Hematologist Oncology provider in Mission Viejo, California. Dr. Sarwari is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Drug-Induced Thrombocytopenia, Thrombocytopenia, Breast Cancer, and Acute Mountain Sickness. Dr. Sarwari is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      26800 Crown Valley Pkwy, Suite 325, 
      Mission Viejo, CA 
       (2.4 miles away)
      Languages Spoken:
      English

      Donald Pratt is a primary care provider, practicing in Internal Medicine in Mission Viejo, California. Dr. Pratt is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

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

      Providence Medical Foundation

      27700 Medical Ctr Rd, 
      Mission Viejo, CA 
       (2.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Michael Truong is an Endocrinologist in Mission Viejo, California. Dr. Truong is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Osteopenia, Melorheostosis with Osteopoikilosis, Melorheostosis, and Postmenopausal Osteoporosis.

      Advanced in Vitamin B12 Deficiency
      Family Medicine
      Advanced in Vitamin B12 Deficiency
      Family Medicine
      27781 La Paz Road, 
      Laguna Niguel, CA 
       (5.3 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Behnaz Motlagh is a primary care provider, practicing in Family Medicine in Laguna Niguel, California. Dr. Motlagh is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Glossitis, Pernicious Anemia, Vitamin B12 Deficiency, and Hypothyroidism. Dr. Motlagh is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      30111 Niguel Rd, Suite H, 
      Laguna Niguel, CA 
       (5.8 miles away)
      Languages Spoken:
      English

      Peter Jungwirth is a primary care provider, practicing in Internal Medicine in Laguna Niguel, California. Dr. Jungwirth is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Glossitis, Pernicious Anemia, Vitamin B12 Deficiency, and Subacute Combined Degeneration.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      30131 Town Ctr Dr, Suite 215, 
      Laguna Niguel, CA 
       (5.9 miles away)
      Languages Spoken:
      English

      Cheryl Kellogg is a primary care provider, practicing in Internal Medicine in Laguna Niguel, California. Dr. Kellogg is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vitamin B12 Deficiency, Peripheral Neuropathy, Vitamin D Deficiency, and Subacute Combined Degeneration.

      Experienced in Vitamin B12 Deficiency
      Holistic Medicine
      Experienced in Vitamin B12 Deficiency
      Holistic Medicine
      6650 Irvine Center Dr, 
      Irvine, CA 
       (7.8 miles away)
      Languages Spoken:
      English

      Hye Lee is a Holistic Medicine provider in Irvine, California. Ms. Lee is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Ocular Hypertension (OHT), Biliary Dyskinesia, Vitamin B12 Deficiency, Thrombectomy, and Nephrectomy.

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

      Hoag Clinic

      16300 Sand Canyon Ave, Suite 311, 
      Irvine, CA 
       (7.9 miles away)
      Experience:
      17+ years
      Languages Spoken:
      English
      Offers Telehealth

      Urvi Vyas is an Endocrinologist in Irvine, California. Dr. Vyas has been practicing medicine for over 17 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), Obesity, Obesity in Children, and Thyroid Storm.

      Showing 1-20 of 41

      Last Updated: 10/30/2025

      When should I see a Vitamin B12 Deficiency doctor near Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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 Mission Viejo, 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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