The 20 Best Transcobalamin Deficiency Doctors Near Me in Los Angeles, CA

Find the Top Transcobalamin Deficiency Experts and Specialists

The 20 Best Transcobalamin Deficiency Doctors near Los Angeles, CA

Last Updated: 02/22/2026

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MediFind found 8 doctor with experience in Transcobalamin Deficiency near Los Angeles, CA. Of these, 6 are Experienced, 1 are Advanced and 1 are Distinguished.

Location
LocationClose
8 providers found
    Leo E. Orr
    Experienced in Transcobalamin Deficiency
    Internal Medicine
    Experienced in Transcobalamin Deficiency
    Internal Medicine

    Leo E. Orr, M.D., Inc.

    1245 Wilshire Blvd, 
    Los Angeles, CA 
     (1.3 miles away)
    Experience:
    52+ years
    Languages Spoken:
    English
    Offers Telehealth

    Dr. Orr treats each and every patient with care and compassion. Dr. Orr is rated as an Experienced provider by MediFind in the treatment of Transcobalamin Deficiency. His top areas of expertise are Paget Disease of the Breast, Breast Cancer, Malignant Mixed Mullerian Tumor, and Endometrial Cancer.

    Ravin M. Rupani
    Experienced in Transcobalamin Deficiency
    Oncology | Hematology
    Experienced in Transcobalamin Deficiency
    Oncology | Hematology

    The Oncology Institute Of Hope And Innovation

    101 E. Beverly Blvd., Ste 200, 
    Montebello, CA 
     (8.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    To provide our patients with compassionate quality medical care. Dr. Rupani is rated as an Experienced provider by MediFind in the treatment of Transcobalamin Deficiency. His top areas of expertise are Myelodysplastic Syndrome (MDS), Paget Disease of the Breast, Breast Cancer, and Familial Colorectal Cancer.

    Experienced in Transcobalamin Deficiency
    Family Medicine
    Experienced in Transcobalamin Deficiency
    Family Medicine

    A & N Diagnostic

    5300 Santa Monica Blvd Ste 200, 
    Los Angeles, CA 
     (3.8 miles away)
    Languages Spoken:
    English

    Ludvik Artinyan is a primary care provider, practicing in Family Medicine in Los Angeles, California. Dr. Artinyan is rated as an Experienced provider by MediFind in the treatment of Transcobalamin Deficiency. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Transcobalamin Deficiency.

    Learn about our expert tiers
    Distinguished in Transcobalamin Deficiency
    Family Medicine
    Distinguished in Transcobalamin Deficiency
    Family Medicine

    Evlyn Avanessian, MD Inc.

    3628 Foothill Blvd, 
    Glendale, CA 
     (12.5 miles away)
    Experience:
    23+ years
    Languages Spoken:
    English
    Offers Telehealth

    Evlyn Avanessian is a primary care provider, practicing in Family Medicine in Glendale, California. Dr. Avanessian has been practicing medicine for over 23 years and is rated as a Distinguished provider by MediFind in the treatment of Transcobalamin Deficiency. Her top areas of expertise are Transcobalamin Deficiency, Vitamin B12 Deficiency, Vitamin D Deficiency, Gastrostomy, and Ureteroscopy.

    Experienced in Transcobalamin Deficiency
    Family Medicine
    Experienced in Transcobalamin Deficiency
    Family Medicine

    Sukiasyan Psychological Services Inc.

    1220 S Central Ave Ste 205, 
    Glendale, CA 
     (5.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Manvel Mazmanyan is a primary care provider, practicing in Family Medicine in Glendale, California. Dr. Mazmanyan is rated as an Experienced provider by MediFind in the treatment of Transcobalamin Deficiency. His top areas of expertise are Tension Headache, Type 2 Diabetes (T2D), Hypertensive Heart Disease, and Frozen Shoulder.

    Experienced in Transcobalamin Deficiency
    Family Medicine
    Experienced in Transcobalamin Deficiency
    Family Medicine

    Haven Health

    6221 Wilshire Blvd Ste 216, 
    Los Angeles, CA 
     (7.5 miles away)
    Languages Spoken:
    English

    Jack O'brien is a primary care provider, practicing in Family Medicine in Los Angeles, California. Dr. O'brien is rated as an Experienced provider by MediFind in the treatment of Transcobalamin Deficiency. His top areas of expertise are Eunuchoidism Familial Hypogonadotropic, Male Pseudohermaphroditism with Gynecomastia, Testicular Failure, and Syphilis.

    Experienced in Transcobalamin Deficiency
    Family Medicine
    Experienced in Transcobalamin Deficiency
    Family Medicine

    Pacific Oaks Medical Group & Subsidiary

    6221 Wilshire Blvd Ste 216, 
    Los Angeles, CA 
     (7.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Marcus Tellez is a primary care provider, practicing in Family Medicine in Los Angeles, California. Dr. Tellez is rated as an Experienced provider by MediFind in the treatment of Transcobalamin Deficiency. His top areas of expertise are Myelitis, AIDS Dysmorphic Syndrome, HIV/AIDS, and AIDS Dementia Complex.

    Advanced in Transcobalamin Deficiency
    Family Medicine
    Advanced in Transcobalamin Deficiency
    Family Medicine

    Zainab Mahmoud, MD Inc.

    4910 Van Nuys Blvd, 
    Sherman Oaks, CA 
     (13.8 miles away)
    Experience:
    24+ years
    Languages Spoken:
    English

    Zainab Mahmoud is a primary care provider, practicing in Family Medicine in Sherman Oaks, California. Dr. Mahmoud has been practicing medicine for over 24 years and is rated as an Advanced provider by MediFind in the treatment of Transcobalamin Deficiency. Her top areas of expertise are Transcobalamin Deficiency, Type B Insulin Resistance Syndrome, Abdominal Obesity Metabolic Syndrome, and Mitochondrial Complex V Deficiency.

    Showing 1-8 of 8

    Last Updated: 02/22/2026

    What is the definition of Transcobalamin Deficiency?

    Transcobalamin deficiency is a disorder that impairs the transport of cobalamin (also known as vitamin B12) within the body. Cobalamin is obtained from the diet; this vitamin is found in animal products such as meat, eggs, and shellfish. An inability to transport cobalamin within the body results in cells that lack cobalamin, which they need for many functions including cell growth and division (proliferation) and DNA production. The absence of cobalamin leads to impaired growth, a shortage of blood cells, and many other signs and symptoms that usually become apparent within the first weeks or months of life.

    When should I see a Transcobalamin Deficiency doctor near Los Angeles, 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 Transcobalamin Deficiency doctor near Los Angeles, 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 Transcobalamin Deficiency doctors near Los Angeles, 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 Transcobalamin Deficiency doctors near Los Angeles, 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 Transcobalamin Deficiency doctor near Los Angeles, 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 Transcobalamin Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Transcobalamin 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 Transcobalamin Deficiency doctor near Los Angeles, 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 Transcobalamin 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 Transcobalamin 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 Transcobalamin Deficiency doctors near Los Angeles, CA?

    Look for the filter feature on the left side of the Transcobalamin 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 Transcobalamin Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Transcobalamin 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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