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

Find the Top Vitamin B12 Deficiency Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 156 doctor with experience in Vitamin B12 Deficiency near Northridge, CA. Of these, 134 are Experienced, 19 are Advanced and 3 are Distinguished.

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156 providers found
    Experienced in Vitamin B12 Deficiency
    Rheumatology
    Experienced in Vitamin B12 Deficiency
    Rheumatology

    Xavier J. Caro, MD Private Practice

    18350 Roscoe Blvd, Ste 418, 
    Northridge, CA 
     (1.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Xavier Caro is a Rheumatologist practicing medicine in Northridge, California. Dr. Caro is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Fibromyalgia, Erythromelalgia, Rheumatoid Arthritis (RA), and Psoriatic Arthritis. Dr. Caro is board certified in Internal Medicine and Internal Medicine (Sub: Rheumatology). Dr. Caro is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency
    18370 Burbank Boulevard, Suite 401, 
    Tarzana, CA 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Afshine Emrani is a Cardiologist practicing medicine in Tarzana, California. Dr. Emrani is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Apolipoprotein C2 Deficiency, Hyperlipoproteinemia Type 5, Familial Lipoprotein Lipase Deficiency, and Vitamin B12 Deficiency. Dr. Emrani is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency

    Lawrence Weinberg MD Inc.

    18915 Nordhoff St, 
    Northridge, CA 
     (0.5 miles away)
    Experience:
    39+ years
    Languages Spoken:
    English
    Offers Telehealth

    Lawrence Weinberg is a Neurologist practicing medicine in Northridge, California. He has been practicing medicine for over 39 years. Dr. Weinberg is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Migraine, Cerebellar Degeneration, Migraine with Brainstem Aura, and Benign Rolandic Epilepsy. Dr. Weinberg is board certified in American Board Psychiatry & Neurology.

    Learn about our expert tiers
    Experienced in Vitamin B12 Deficiency
    Interventional Cardiology
    Experienced in Vitamin B12 Deficiency
    Interventional Cardiology
    18226 Ventura Boulevard, Suite 102, 
    Tarzana, CA 
     (4.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mehran Khorsandi is an Interventional Cardiologist practicing medicine in Tarzana, California. Dr. Khorsandi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Angina, Metabolic Syndrome, Stable Angina, Angioplasty, and Pacemaker Implantation. Dr. Khorsandi is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Interventional Cardiology
    Experienced in Vitamin B12 Deficiency
    Interventional Cardiology
    18226 Ventura Boulevard, Suite 102, 
    Tarzana, CA 
     (4.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Moinakhtar Lala is an Interventional Cardiologist practicing medicine in Tarzana, California. Dr. Lala is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Angina, Metabolic Syndrome, Varicose Veins, Angioplasty, and Atherectomy. Dr. Lala is currently accepting new patients.

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

    Los Angeles Hematology

    6850 Sepulveda Blvd, 
    Van Nuys, CA 
     (4.9 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ronald Tang is an Internal Medicine provider practicing medicine in Van Nuys, California. He has been practicing medicine for over 18 years. Dr. Tang is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 51 other conditions, according to our data. His clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Neuroendocrine Carcinoma of the Cervix, and Cervical Cancer. Dr. Tang is board certified in American Board Internal Medicine.

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

    Michael Popkin M.D.

    5363 Balboa Blvd Ste 345, 
    Encino, CA 
     (5.0 miles away)
    Languages Spoken:
    English

    Peter Koenig is an Endocrinologist practicing medicine in Encino, California. Dr. Koenig is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Abdominal Obesity Metabolic Syndrome, Type B Insulin Resistance Syndrome, Mitochondrial Complex V Deficiency, and Cytochrome C Oxidase Deficiency.

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

    Gustavo Machicado, MD

    18350 Roscoe Blvd, 
    Northridge, CA 
     (1.1 miles away)
    Experience:
    52+ years
    Languages Spoken:
    English

    Gustavo Machicado is an Internal Medicine specialist and a Gastroenterologist practicing medicine in Northridge, California. He has been practicing medicine for over 52 years. Dr. Machicado is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Gastritis, Chronic Erosive Gastritis, Endoscopy, and Gastrectomy. Dr. Machicado is board certified in American Board Of Internal Medicine.

    Advanced in Vitamin B12 Deficiency
    Hematology
    Advanced in Vitamin B12 Deficiency
    Hematology

    The Oncology Institute

    18250 Roscoe Blvd Ste 325, 
    Northridge, CA 
     (1.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Alex Ehsan is a Hematologist practicing medicine in Northridge, California. Dr. Ehsan is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Lymphoid Hyperplasia, Anemia, Familial Colorectal Cancer, and Lymphofollicular Hyperplasia.

    Advanced in Vitamin B12 Deficiency
    Geriatrics | Internal Medicine
    Advanced in Vitamin B12 Deficiency
    Geriatrics | Internal Medicine

    Laurence Silverstein, MD

    5620 Wilbur Ave, 
    Tarzana, CA 
     (4.4 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English

    Laurence Silverstein is a primary care provider, practicing in Internal Medicine and Geriatrics in Tarzana, California. He has been practicing medicine for over 47 years. Dr. Silverstein is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Sitosterolemia, Glossitis, Pernicious Anemia, Gastrostomy, and Ureteroscopy. Dr. Silverstein is board certified in American Board Of Internal Medicine.

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

    Oncology Physicians Network Of California PC

    6850 Sepulveda Blvd, 
    Van Nuys, CA 
     (4.9 miles away)
    Experience:
    26+ years
    Languages Spoken:
    English
    Offers Telehealth

    Jotika Thompson is an Internal Medicine provider practicing medicine in Van Nuys, California. She has been practicing medicine for over 26 years. Dr. Thompson is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Childhood Iron Deficiency Anemia, and Iron Deficiency Anemia. Dr. Thompson is board certified in American Board Of Internal Medicine.

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

    Rachman Medical Group

    7601 Canby Ave, 
    Reseda, CA 
     (1.8 miles away)
    Experience:
    26+ years
    Languages Spoken:
    English

    Ilya Rachman is a primary care provider, practicing in Internal Medicine in Reseda, California. He has been practicing medicine for over 26 years. Dr. Rachman is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension. Dr. Rachman is board certified in American Board Of Internal Medicine.

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

    Siamak Etehad, MD Inc, A Medical Corporation

    17075 Devonshire St, 
    Northridge, CA 
     (2.4 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English
    Offers Telehealth

    Siamak Etehad is a primary care provider, practicing in Internal Medicine in Northridge, California. He has been practicing medicine for over 47 years. Dr. Etehad is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Long Haul COVID, Small Cell Lung Cancer (SCLC), EGFR Positive Lung Cancer, Gastrostomy, and Colonoscopy. Dr. Etehad is board certified in American Board Of Internal Medicine.

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

    William Y. Josephson, Md, Inc.

    17075 Devonshire St, 
    Northridge, CA 
     (2.4 miles away)
    Experience:
    47+ years
    Languages Spoken:
    English
    Offers Telehealth

    William Josephson is a primary care provider, practicing in Internal Medicine in Northridge, California. He has been practicing medicine for over 47 years. Dr. Josephson is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses COVID-19, Multisystem Inflammatory Syndrome in Children (MIS-C), Hypertensive Heart Disease, Gastrostomy, and Colonoscopy. Dr. Josephson is board certified in American Board Of Internal Medicine.

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

    David J Hernandez MD Medical Clinic

    7012 Reseda Blvd Ste 100, 
    Reseda, CA 
     (2.5 miles away)
    Languages Spoken:
    English

    David Hernandez is a primary care provider, practicing in Internal Medicine in Reseda, California. Dr. Hernandez is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His clinical expertise encompasses Amaurosis Fugax, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Insomnia.

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

    North Hills Medical Center

    8719 Woodley Ave, 
    North Hills, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Gevork Maissian is an Internal Medicine provider practicing medicine in North Hills, California. Dr. Maissian is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Vitamin B12 Deficiency, Muscle Spasms, and Folliculitis.

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

    David E Abrams MD Inc

    18370 Burbank Blvd Ste 211, 
    Tarzana, CA 
     (4.5 miles away)
    Languages Spoken:
    English

    Paul Sogol is an Internal Medicine provider practicing medicine in Tarzana, California. Dr. Sogol is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His clinical expertise encompasses Maturity Onset Diabetes of the Young, Vitamin B12 Deficiency, Postmenopausal Osteoporosis, and Osteoporosis.

    Experienced in Vitamin B12 Deficiency
    Endocrinology | Geriatrics | Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Endocrinology | Geriatrics | Internal Medicine

    Medical Valley Partners, Inc

    5525 Etiwanda Ave, 
    Tarzana, CA 
     (4.5 miles away)
    Experience:
    32+ years
    Languages Spoken:
    English
    Offers Telehealth

    Saman Lashkari is an Internal Medicine specialist and an Endocrinologist practicing medicine in Tarzana, California. He has been practicing medicine for over 32 years. Dr. Lashkari is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), Smoldering Multiple Myeloma, Chronic Kidney Disease, Renovascular Hypertension, and Hernia Surgery. Dr. Lashkari is board certified in American Board Of Internal Medicine.

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

    Kleynberg Medical Clinic

    6850 Sepulveda Blvd, 
    Van Nuys, CA 
     (4.9 miles away)
    Experience:
    50+ years
    Languages Spoken:
    English
    Offers Telehealth

    Leonid Kleynberg is an Internal Medicine provider practicing medicine in Van Nuys, California. He has been practicing medicine for over 50 years. Dr. Kleynberg is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Dehydration, Transient Erythroblastopenia of Childhood, Pure Red Cell Aplasia, Bone Marrow Aspiration, and Gastrostomy. Dr. Kleynberg is board certified in American Board Of Internal Medicine.

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

    Kleynberg Medical Clinic

    6850 Sepulveda Blvd, 
    Van Nuys, CA 
     (4.9 miles away)
    Experience:
    43+ years
    Languages Spoken:
    English

    Vera Kleynberg is an Internal Medicine provider practicing medicine in Van Nuys, California. She has been practicing medicine for over 43 years. Dr. Kleynberg is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Dehydration, Anemia, Familial Colorectal Cancer, Colorectal Cancer, and Bone Marrow Aspiration. Dr. Kleynberg is board certified in American Board Of Internal Medicine.

    Showing 1-20 of 156

    Last Updated: 04/28/2026

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