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    Last Updated: 01/09/2026

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    MediFind found 22 doctor with experience in Vitamin B12 Deficiency near Thousand Oaks, CA. Of these, 20 are Experienced and 2 are Advanced.

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    LocationClose
    22 providers found
      Experienced in Vitamin B12 Deficiency
      Internal Medicine | Hospital Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine | Hospital Medicine

      The Regents Of The University Of California

      100 Moody Ct, Suite 200, 
      Thousand Oaks, CA 
       (0.9 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Steven Mccarthy is a Hospital Medicine provider in Thousand Oaks, California. Dr. Mccarthy is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin D Deficiency, Vitamin B12 Deficiency, Smoldering Multiple Myeloma, and Vocal Cord Dysfunction.

      Experienced in Vitamin B12 Deficiency
      Family Medicine | Geriatrics
      Experienced in Vitamin B12 Deficiency
      Family Medicine | Geriatrics
      227 W Janss Rd, 
      Thousand Oaks, CA 
       (2.9 miles away)
      Languages Spoken:
      English

      Hema Vaidya-Nathan is a primary care provider, practicing in Family Medicine and Geriatrics in Thousand Oaks, California. Dr. Vaidya-Nathan 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, Cholangiocarcinoma (Bile Duct Cancer), Gastrostomy, and Endoscopy.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      227 W Janss Rd, Suite 100, 
      Thousand Oaks, CA 
       (2.9 miles away)
      Languages Spoken:
      English

      Andre Yousefia is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Yousefia is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Felty Syndrome, Pericarditis, Apoplexy, and Anemia.

      Learn about our expert tiers
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine

      Arroyo Oaks Medical Associates Inc

      2230 Lynn Rd, Suite 200, 
      Thousand Oaks, CA 
       (3.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Daniel Tavari is a primary care provider, practicing in Family Medicine in Thousand Oaks, California. Dr. Tavari is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Bronchitis, Childhood Pancreatitis, Familial Hypertension, Gastrostomy, and Endoscopy.

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

      Arroyo Oaks Medical Associates Inc

      2230 Lynn Rd, Suite 200, 
      Thousand Oaks, CA 
       (3.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Manoj Aswani is a primary care provider, practicing in Internal Medicine in Thousand Oaks, California. Dr. Aswani 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, Glucocorticoid-Remediable Aldosteronism, Pacemaker Implantation, and Endoscopy.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      141 Triunfo Canyon Rd Ste 110, 
      Westlake Village, CA 
       (3.6 miles away)
      Languages Spoken:
      English

      Christine Dahlin is a primary care provider, practicing in Internal Medicine in Westlake Village, California. Dr. Dahlin is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Transcobalamin Deficiency, Hyperlipidemia Type 3, Postmenopausal Osteoporosis, and Osteoporosis.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency
      2045 Royal Avenue, Suite 234, 
      Simi Valley, CA 
       (7.9 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Vladislav Bekerman is an Ophthalmologist in Simi Valley, California. Dr. Bekerman is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Interstitial Keratitis, Cataract, Glaucoma, Blepharitis, and Trabeculectomy. Dr. Bekerman is currently accepting new patients.

      Avan Patel
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine

      Primary Care & Specialty Care - Dignity Health Medical Group - Camarillo, CA

      5051 Verdugo Wy, Ste 100 & Ste 110, 
      Camarillo, CA 
       (8.3 miles away)
      Languages Spoken:
      English, Hindi, Spanish
      Accepting New Patients
      Offers Telehealth

      I treat every patient as if they are my family or friends. I listen to my patients and treat them with the utmost respect, dedication, and commitment that I show my family and loved ones, putting their best health interests first. I treat the patient, not just a symptom or an ailment. I do my best to preserve the trust my patients place in me. Dr. Patel is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, Bone Graft, and Vertebroplasty.

      Experienced in Vitamin B12 Deficiency
      General Practice
      Experienced in Vitamin B12 Deficiency
      General Practice
      1129 Red Tail Way, 
      Simi Valley, CA 
       (6.5 miles away)
      Languages Spoken:
      English

      Royal Dean is a primary care provider, practicing in General Practice in Simi Valley, California. Dr. Dean is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Apolipoprotein C2 Deficiency, Hyperlipoproteinemia Type 5, Familial Lipoprotein Lipase Deficiency, and Familial Hypertriglyceridemia.

      Experienced in Vitamin B12 Deficiency
      Pulmonary Medicine
      Experienced in Vitamin B12 Deficiency
      Pulmonary Medicine
      1177 Roadrunner Way, 
      Simi Valley, CA 
       (6.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Duc Nguyen is a Pulmonary Medicine provider in Simi Valley, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Lung Metastases, Diffuse Panbronchiolitis, and Parapneumonic Pleural Effusion.

      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      1189 Swallow Ln, Suite 110, 
      Simi Valley, CA 
       (6.6 miles away)
      Languages Spoken:
      English

      Anthony Phan is a primary care provider, practicing in Geriatrics and Internal Medicine in Simi Valley, California. Dr. Phan is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Prolidase Deficiency, Homocystinuria due to MTHFR Deficiency, Inborn Amino Acid Metabolism Disorder, and Infant Hyperglycemia.

      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology
      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology
      7320 Woodlake Avenue, Suite 330, 
      West Hills, CA 
       (12.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Omid Shaye is a Hematologist and an Oncologist in West Hills, California. Dr. Shaye is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Paget Disease of the Breast, Familial Colorectal Cancer, Diffuse Large B-Cell Lymphoma (DLBCL), Large-Cell Immunoblastic Lymphoma, and Bone Marrow Aspiration. Dr. Shaye is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      22600 Ventura Boulevard, Suite 101, 
      Woodland Hills, CA 
       (14.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Sofia Vaisman is a primary care provider, practicing in Family Medicine in Woodland Hills, California. Dr. Vaisman is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Diabetic Neuropathy, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Hypertension. Dr. Vaisman is currently accepting new patients.

      Jeffrey B. Allan
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine

      Alamar Health Care Inc

      58 W Loop Dr, 
      Camarillo, CA 
       (11.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Dr. Jeffrey Allan, MD is an Internal Medicine specialist in Camarillo, CA and has over 31 years of experience in the medical field.  He graduated from University Of California, Los Angeles School of Medicine in 1989. He is affiliated with medical facilities: St. John's Regional Medical Center and St. John's Pleasant Valley Hospital. He is accepting new patients and has indicated that he accepts Telehealth appointments and reimbursed Phone Appointments. Be sure to call ahead with Dr. Allan to book an appointment..WE PROVIDE MEDICAL CARE FOR ALL STAGES OF ADULT LIFE.Care For Adults IncludesUrgent care visits generally same dayVideo Telehealth and reimbursed Phone AppointmentsAcute IIIness Care and Chronic Condition ManagementAssessment of painAnnual Wellness Visits as well as Annual physical examPartnering with Patients and CaregiversMen's  Health and Women's Health ExamsPre-travel examinations & Return to work exams.Assessment and Prevention Strategies to Delay Mid-life Premature Aging.WE ARE THE RECOGNIZED LEADING CENTER FOR GERIATRIC MEDICINE AND GERONTOLOGY IN VENTURA COUNTYOur doctors have many years of education, training and experience as doctors of Internal Medicine with advanced specialized training in Geriatric Medicine.  In fact, our founder, Jeffrey B. Allan, M.D., completed a two-year post-residency Fellowship in Geriatric Medicine from the prestigious UCLA School of Medicine University/Veterans Administration combined program, considered one of the best training programs of its kind in the world.Our doctors and hand-picked on-call physicians follow our patients from the Alamar Healthcare office to hospital, nursing home, residential care, and assisted living.  They coordinate care planning with home health agencies and hospice.Our Alamar Healthcare doctors have many years of Internal Medicine experience in Primary Care treating adults of all ages.  Each patient is listened to carefully at each encounter.  Our doctors partner with patients in their care.  Our practice emphasizes compassion, knowledge, respect and good communication. Patients are followed from office to hospital and on to skilled nursing facilities for continuity of care.  Our patients often are members of the same family, from young adult to seniors. We offer new patient appointments & follow-up visits as well as same day or next day Urgent Care appointments for established patients depending on the needs of the patient.  Our doctors are proud to serve as physicians to patients throughout Ventura County as well provide healthcare to their local fellow health professionals, to Veterans through the VA Veterans Choice Program, and to eligible Ventura County Health Care Plan Employees. Dr. Allan is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Thrombocytopenia, Hypertension, Familial Hypertension, Liver Embolization, and Hip Replacement.

      Advanced in Vitamin B12 Deficiency
      Internal Medicine
      Advanced in Vitamin B12 Deficiency
      Internal Medicine
      7325 Medical Ctr Dr, Suite 306, 
      West Hills, CA 
       (12.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Narsis Moshfeghi is a primary care provider, practicing in Internal Medicine in West Hills, California. Dr. Moshfeghi is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Degos Disease, Sitosterolemia, Anemia, and Homocystinuria due to MTHFR Deficiency.

      Tigalat Shalita
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine

      Tigalat Shalita, DO Private Practice

      7230 Medical Center Dr, Ste 202, 
      West Hills, CA 
       (12.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Patients' understanding of their conditions is the most critical first step in their healing process. We emphasize patient teaching in every aspect of our encounters with our patients. Dr. Shalita is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Acute Kidney Failure, Necrosis, COVID-19, Endoscopy, and Gastrostomy.

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

      Afrouz S. Gerayli, MD Private Practice

      Camarillo, CA 
       (13.7 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Afrouz Gerayli is a primary care provider, practicing in Internal Medicine in Camarillo, California. Dr. Gerayli is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Degos Disease. Dr. Gerayli is currently accepting new patients.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      7345 Medical Ctr Dr, Suite 160, 
      West Hills, CA 
       (10.6 miles away)
      Languages Spoken:
      English

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

      Experienced in Vitamin B12 Deficiency
      Gastroenterology
      Experienced in Vitamin B12 Deficiency
      Gastroenterology
      23101 Sherman Place, Suite 217, 
      West Hills, CA 
       (12.5 miles away)
      Languages Spoken:
      English

      Paul Gulsrud is a Gastroenterologist in West Hills, California. Dr. Gulsrud is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Gastritis, Anemia, Irritable Bowel Syndrome (IBS), Gastrostomy, and Endoscopy.

      Experienced in Vitamin B12 Deficiency
      Family Medicine | General Practice
      Experienced in Vitamin B12 Deficiency
      Family Medicine | General Practice
      23101 Sherman Pl, Suite 210, 
      West Hills, CA 
       (12.6 miles away)
      Languages Spoken:
      English

      Ojen Masrour is a primary care provider, practicing in Family Medicine and General Practice in West Hills, California. Dr. Masrour is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Hypertensive Heart Disease, Enlarged Liver, High Cholesterol, and Pediatric Myocarditis.

      Showing 1-20 of 22

      Last Updated: 01/09/2026

      When should I see a Vitamin B12 Deficiency doctor near Thousand Oaks, 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 Thousand Oaks, 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 Thousand Oaks, 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 Thousand Oaks, 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 Thousand Oaks, 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 Thousand Oaks, 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 Thousand Oaks, 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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