The 20 Best Vitamin B12 Deficiency Doctors Near Me in sag harbor, NY

Find the Top Vitamin B12 Deficiency Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 14 doctor with experience in Vitamin B12 Deficiency near sag harbor, NY. Of these, 14 are Experienced.

Location
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14 providers found
    Experienced in Vitamin B12 Deficiency
    Nurse Practitioner
    Experienced in Vitamin B12 Deficiency
    Nurse Practitioner
    Referral may be required

    Office

    3330 Noyac Rd Bldg A, 
    Sag Harbor, NY 
     (1.4 miles away)
    Languages Spoken:
    English

    Anna-marie Wellins is a Nurse Practitioner practicing medicine in Sag Harbor, New York. Wellins, NP is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her clinical expertise encompasses Febrile Neutropenia and Vitamin B12 Deficiency.

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

    Kelt, Peter A MD, PC

    44 S Ferry Road Ground Leve, 
    Shelter Island, NY 
     (4.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Peter Kelt is a primary care provider, practicing in Family Medicine in Shelter Island, New York. Dr. Kelt is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His clinical expertise encompasses Lyme Disease, Bile Acid Malabsorption, Subacute Combined Degeneration, and Vitamin B12 Deficiency.

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

    George P Dempsey MD PC

    200 Pantigo Pl Ste I, 
    East Hampton, NY 
     (6.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    George Dempsey is a primary care provider, practicing in Family Medicine in East Hampton, New York. Dr. Dempsey 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 Hyperlipoproteinemia Type 4, Familial Hypercholesterolemia, Defective Apolipoprotein B-100, and Homozygous Familial Hypercholesterolemia (HoFH).

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

    Ralph M. Gibson M D P C.

    200 Pantigo Pl Ste H, 
    East Hampton, NY 
     (6.5 miles away)
    Languages Spoken:
    English

    Ralph Gibson is a primary care provider, practicing in Internal Medicine in East Hampton, New York. Dr. Gibson 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 Lyme Disease, Gout, Glossitis, and Pernicious Anemia.

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

    Meeting House Lane Medical Practice PC

    860 Montauk Hwy, 
    Water Mill, NY 
     (6.6 miles away)
    Languages Spoken:
    English

    Damian Marrese is a primary care provider, practicing in Family Medicine in Water Mill, New York. Dr. Marrese 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 Iron Deficiency Anemia, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

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

    Office

    74825 Main Rd, 
    Greenport, NY 
     (8.2 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Anthony Zollo is a primary care provider, practicing in Internal Medicine in Greenport, New York. Dr. Zollo is rated as an Experienced 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 Sideroblastic Anemia, Sitosterolemia, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Vitamin B12 Deficiency
    Physician Assistant
    Experienced in Vitamin B12 Deficiency
    Physician Assistant
    Referral may be required

    Medical House Calls Business Office

    53 Osprey Nest Rd, 
    Greenport, NY 
     (8.6 miles away)
    Languages Spoken:
    English

    Steven Templeton is a Physician Assistant practicing medicine in Greenport, New York. Templeton, PA is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His clinical expertise encompasses Vitamin B12 Deficiency and Fractured Spine.

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

    Gastroenterolgy Of Eastern Long Island LLC

    325 Meeting House Ln Bldg 2, 
    Southampton, NY 
     (9.0 miles away)
    Languages Spoken:
    English

    Candace Cummings is a primary care provider, practicing in Internal Medicine in Southampton, New York. Dr. Cummings is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Delirium Tremens, Lyme Disease, Alcoholic Neuropathy, and Nephronophthisis.

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

    Meeting House Lane Medical Practice PC

    325 Meeting House Ln Ste 403, 
    Southampton, NY 
     (9.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Charles Guida is a Geriatrics provider practicing medicine in Southampton, New York. Dr. Guida 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 Muscle Invasive Bladder Cancer, Familial Hypertension, Hypertension, and Vitamin B12 Deficiency.

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

    Gastroenterolgy Of Eastern Long Island LLC

    325 Meeting House Ln Bldg 2, 
    Southampton, NY 
     (9.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    William Gilmartin is a primary care provider, practicing in Internal Medicine in Southampton, New York. Dr. Gilmartin 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 Hypothyroidism, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Experienced in Vitamin B12 Deficiency
    Sleep Medicine
    Experienced in Vitamin B12 Deficiency
    Sleep Medicine
    Referral may be required

    Office

    32645 Main Rd Ste 7, 
    Cutchogue, NY 
     (10.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Vishnudat Seodat is a Sleep Medicine provider practicing medicine in Cutchogue, New York. Dr. Seodat 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 Liver Failure, End-Stage Renal Disease (ESRD), Malabsorption, and Vitamin D Deficiency. Dr. Seodat is currently accepting new patients.

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

    Peconic Bay Medical Group At Hampton Bays

    80 East Montauk Highway, 
    Hampton Bays, NY 
     (14.9 miles away)
    Languages Spoken:
    English

    Darya Sterling is a primary care provider, practicing in Family Medicine in Hampton Bays, New York. Dr. Sterling is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her clinical expertise encompasses Vitamin B12 Deficiency, Subacute Combined Degeneration, High Cholesterol, and Epidural Hematoma. Dr. Sterling is board certified in American Osteopathic Board Of Family Physicians.

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

    Shoten & Liberman M.D.S PLLC

    182 W Montauk Hwy Ste H, 
    Hampton Bays, NY 
     (14.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Aleksandra Liberman is a primary care provider, practicing in Internal Medicine in Hampton Bays, New York. Dr. Liberman is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Lyme Disease, Hypothyroidism, Hypertension, and Familial Hypertension. Dr. Liberman is currently accepting new patients.

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

    Shoten & Liberman M.D.S PLLC

    182 W Montauk Hwy Ste H, 
    Hampton Bays, NY 
     (14.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Stephen Shoten is a primary care provider, practicing in Internal Medicine in Hampton Bays, New York. Dr. Shoten 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 Chronic Obstructive Pulmonary Disease (COPD), Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

    Showing 1-14 of 14

    Last Updated: 09/26/2026

    When should I see a Vitamin B12 Deficiency doctor near sag harbor, 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 sag harbor, 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 sag harbor, 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 sag harbor, 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 sag harbor, 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 sag harbor, 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 sag harbor, 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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