The 20 Best Vitamin B12 Deficiency Doctors Near Me in great neck, NY

Find the Top Vitamin B12 Deficiency Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 922 doctor with experience in Vitamin B12 Deficiency near great neck, NY. Of these, 776 are Experienced, 138 are Advanced and 7 are Distinguished.

Location
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922 providers found
    Distinguished in Vitamin B12 Deficiency
    Family Medicine
    Distinguished in Vitamin B12 Deficiency
    Family Medicine

    Advanced Internal Medicine P.C.

    935 Northern Blvd Ste 105, 
    Great Neck, NY 
     (1.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Shahram Shamekh is a primary care provider, practicing in Family Medicine in Great Neck, New York. Dr. Shamekh is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Vitamin B12 Deficiency, Glossitis, Pernicious Anemia, and Subacute Combined Degeneration. Dr. Shamekh is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Internal Medicine
    Advanced in Vitamin B12 Deficiency
    Internal Medicine
    2035 Lakeville Road, Suite 101, 
    New Hyde Park, NY 
     (3.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Leonard Treihaft is a primary care provider, practicing in Internal Medicine in New Hyde Park, New York. Dr. Treihaft 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 Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and High Cholesterol. Dr. Treihaft is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency
    Referral may be required
    915 Hillside Avenue, 
    New Hyde Park, NY 
     (4.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Wilbert Maniego is a Geriatrics provider practicing medicine in New Hyde Park, New York. Dr. Maniego is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Vitamin B12 Deficiency, Familial Hypertension, Hypertension, and Gastrostomy. Dr. Maniego is currently accepting new patients.

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

    St. Francis Hospital And Heart Center

    100 Port Washington Blvd, 
    Roslyn, NY 
     (3.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Judah Guy is a primary care provider, practicing in Internal Medicine in Roslyn, New York. Dr. Guy is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Ascites, Silent Thyroiditis, Vitamin D Deficiency, Colonoscopy, and Endoscopy. Dr. Guy is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency
    Referral may be required

    Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

    450 Lakeville Road, Entrance B, 
    Lake Success, NY 
     (3.4 miles away)
    Languages Spoken:
    English, Armenian
    Accepting New Patients
    Offers Telehealth

    Nouneh Gostanian is an Oncologist practicing medicine in Lake Success, New York. Dr. Gostanian is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Inflammatory Breast Cancer, and Angiosarcoma. Dr. Gostanian is board certified in American Board Of Internal Medicine/Medical Oncology and American Board Of Internal Medicine/Hematology. Dr. Gostanian is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Family Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine

    Kanghan Medical Services PC

    19214 Northern Blvd Ste 2D, 
    Flushing, NY 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Byung Kang is a primary care provider, practicing in Family Medicine in Flushing, New York. Dr. Kang is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 42 other conditions, according to our data. His clinical expertise encompasses Cirrhosis, High Cholesterol, Familial Combined Hyperlipidemia, Mastoidectomy, and Myringotomy. Dr. Kang is currently accepting new patients.

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

    Wholesome Medical PC

    1575 Hillside Ave Ste 103, 
    New Hyde Park, NY 
     (4.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sabu Varghese is a primary care provider, practicing in Internal Medicine in New Hyde Park, New York. Dr. Varghese is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Long Haul COVID, Vitamin D Deficiency, Obesity in Children, and Type 2 Diabetes (T2D). Dr. Varghese is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Rheumatology
    Experienced in Vitamin B12 Deficiency
    Rheumatology
    Referral may be required

    Alfa Healthcare Supply Inc

    26112 E Williston Ave, 
    Floral Park, NY 
     (4.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Bruce Stein is a Rheumatologist practicing medicine in Floral Park, New York. Dr. Stein is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Bursitis, Tenosynovitis, Rheumatoid Arthritis (RA), and Gout. Dr. Stein is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Family Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine

    Medex Diagnostic And Treatment Center

    111-29 Queens Blvd, 
    Queens, NY 
     (8.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    David Khasidy is a primary care provider, practicing in Family Medicine in Queens, New York. Dr. Khasidy is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Asthma, Asthma in Children, Maturity Onset Diabetes of the Young, and Vitamin D Deficiency.

    Experienced in Vitamin B12 Deficiency
    General Surgery
    Experienced in Vitamin B12 Deficiency
    General Surgery
    Referral may be required
    1615 Northern Boulevard, Suite 302, 
    Manhasset, NY 
     (2.2 miles away)
    Languages Spoken:
    English, French, Spanish
    Accepting New Patients

    Louis Auguste is a General Surgeon practicing medicine in Manhasset, New York. Dr. Auguste is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Angiosarcoma, Inflammatory Breast Cancer, Breast Cancer, Paget Disease of the Breast, and Lymphadenectomy. Dr. Auguste is board certified in American Board Of Surgery. Dr. Auguste is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency
    Referral may be required
    800 Community Drive, Suite 309, 
    Manhasset, NY 
     (2.5 miles away)
    Languages Spoken:
    English, Farsi, Hebrew
    Accepting New Patients
    Offers Telehealth

    Robert Rahmani is a Cardiologist practicing medicine in Manhasset, New York. Dr. Rahmani is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses SVC Obstruction, May Thurner Syndrome, Familial Neurocardiogenic Syncope, Pacemaker Implantation, and Gastrostomy. Dr. Rahmani is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Family Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine

    Northwell Health Physician Partners Family Practice Of Port Washington

    110 Main Street, Suite 202, 
    Port Washington, NY 
     (2.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Holly Bienenstock is a primary care provider, practicing in Family Medicine in Port Washington, New York. Dr. Bienenstock is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Multiple Carboxylase Deficiency, Vitamin B12 Deficiency Anemia, Folate Deficiency, and Subacute Combined Degeneration. Dr. Bienenstock is board certified in American Board Of Family Medicine.

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

    St. Francis Hospital And Heart Center

    100 Port Washington Blvd, 
    Roslyn, NY 
     (3.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Leon Schwechter is a primary care provider, practicing in Internal Medicine in Roslyn, New York. Dr. Schwechter is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Vitamin B12 Deficiency, Pernicious Anemia, Glossitis, Endoscopy, and Pacemaker Implantation. Dr. Schwechter is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency
    Referral required
    3003 New Hyde Park Road, Suite 201, 
    New Hyde Park, NY 
     (3.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Kenneth Hershon is an Endocrinologist practicing medicine in New Hyde Park, New York. Dr. Hershon is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Hypothyroidism, Obesity in Children, and Vitamin D Deficiency. Dr. Hershon is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine/Endocrinology, Diabetes & Metabolism. Dr. Hershon is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Endocrinology
    Experienced in Vitamin B12 Deficiency
    Endocrinology
    Referral required
    3003 New Hyde Park Road, Suite 201, 
    New Hyde Park, NY 
     (3.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Issac Sachmechi is an Endocrinologist practicing medicine in New Hyde Park, New York. Dr. Sachmechi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Hypothyroidism, and Obesity in Children. Dr. Sachmechi is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine/Endocrinology, Diabetes & Metabolism. Dr. Sachmechi is currently accepting new patients.

    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Referral may be required
    2800 Marcus Avenue, Suite 200, 
    New Hyde Park, NY 
     (3.3 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Francisco Garcia-Moreno is a Hematologist and an Oncologist practicing medicine in New Hyde Park, New York. Dr. Garcia-Moreno 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 Alpha Thalassemia, Alpha Thalassemia X-Linked Intellectual Disability Syndrome, Thalassemia, and Monoclonal Gammopathy of Undetermined Significance (MGUS). Dr. Garcia-Moreno is currently accepting new patients.

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

    Office

    36 Lewis Ln, 
    Port Washington, NY 
     (3.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Steven Fried is a primary care provider, practicing in Internal Medicine in Port Washington, New York. Dr. Fried is rated as an Advanced 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 Anemia, Vitamin B12 Deficiency, Subacute Combined Degeneration, and Fainting.

    Advanced in Vitamin B12 Deficiency
    Allergy and Immunology
    Advanced in Vitamin B12 Deficiency
    Allergy and Immunology
    Referral may be required

    Office

    3821 Bell Blvd, 
    Bayside, NY 
     (3.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Robert Mittman is an Allergy and Immunologist practicing medicine in Bayside, New York. Dr. Mittman is rated as an Advanced 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 Hives, Sinusitis, Allergic Rhinitis, and Angioedema. Dr. Mittman is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Advanced in Vitamin B12 Deficiency
    Referral may be required

    Perlmutter Cancer Center At NYU Langone Arena Oncology

    1999 Marcus Ave Ste 308, 
    New Hyde Park, NY 
     (3.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Anu Chandok is a Hematologist practicing medicine in New Hyde Park, New York. Dr. Chandok is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses ALK-Positive Non-Small Cell Lung Cancer, Schnitzler Syndrome, Monoclonal Gammopathy of Undetermined Significance (MGUS), and Non-Hodgkin Lymphoma.

    Experienced in Vitamin B12 Deficiency
    Hematology Oncology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology Oncology | Oncology
    Referral may be required

    Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

    450 Lakeville Road, Entrance B, 
    Lake Success, NY 
     (3.4 miles away)
    Languages Spoken:
    English, Hindi, Malayalam, Punjabi
    Accepting New Patients
    Offers Telehealth

    Veena John is a Hematologist Oncology specialist and an Oncologist practicing medicine in Lake Success, New York. Dr. John is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 15 other conditions, according to our data. Her clinical expertise encompasses Ovarian Cancer, Endometrial Cancer, Testicular Yolk Sac Tumor, and Malignant Mixed Mullerian Tumor. Dr. John is board certified in American Board Of Internal Medicine/Medical Oncology, American Board Of Internal Medicine, and American Board Of Internal Medicine/Hematology. Dr. John is currently accepting new patients.

    Showing 1-20 of 922

    Last Updated: 09/26/2026

    When should I see a Vitamin B12 Deficiency doctor near great neck, NY?

    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 great neck, NY?

    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 great neck, NY?

    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 great neck, NY?

    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 great neck, NY?

    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 great neck, NY?

    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 great neck, NY?

    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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