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    Last Updated: 01/09/2026

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    MediFind found 600 doctor with experience in Vitamin B12 Deficiency near Roslyn, NY. Of these, 489 are Experienced, 107 are Advanced and 4 are Distinguished.

    Location
    LocationClose
    600 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 
       (4.3 miles away)
      Languages Spoken:
      English

      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. His top areas of expertise are Vitamin B12 Deficiency, Glossitis, Pernicious Anemia, and Subacute Combined Degeneration.

      Nouneh J. Gostanian
      Advanced in Vitamin B12 Deficiency
      Advanced in Vitamin B12 Deficiency

      Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

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

      Nouneh Gostanian is an Oncologist in Lake Success, New York. Dr. Gostanian is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Paget Disease of the Breast, Breast Cancer, Inflammatory Breast Cancer, and Angiosarcoma.

      Louis J. Auguste
      Experienced in Vitamin B12 Deficiency
      General Surgery
      Experienced in Vitamin B12 Deficiency
      General Surgery
      1615 Northern Boulevard, Suite 302, 
      Manhasset, NY 
       (1.9 miles away)
      Languages Spoken:
      English, French, Spanish

      Louis Auguste is a General Surgeon in Manhasset, New York. Dr. Auguste is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Angiosarcoma, Inflammatory Breast Cancer, Breast Cancer, Paget Disease of the Breast, and Lymphadenectomy.

      Learn about our expert tiers
      Distinguished in Vitamin B12 Deficiency
      Internal Medicine
      Distinguished in Vitamin B12 Deficiency
      Internal Medicine
      1155 Northern Blvd, 
      Manhasset, NY 
       (2.8 miles away)
      Languages Spoken:
      English

      Janette Marcelo is a primary care provider, practicing in Internal Medicine in Manhasset, New York. Dr. Marcelo is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Xanthoma, Familial Combined Hyperlipidemia, Cirrhosis, and High Cholesterol.

      Holly Bienenstock
      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. Her top areas of expertise are Folate Deficiency, Multiple Carboxylase Deficiency, Vitamin B12 Deficiency Anemia, and Subacute Combined Degeneration.

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

      Kenneth Hershon is an Endocrinologist in New Hyde Park, New York. Dr. Hershon is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Hypothyroidism, Obesity in Children, and Vitamin D Deficiency.

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

      Issac Sachmechi is an Endocrinologist in New Hyde Park, New York. Dr. Sachmechi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Hypothyroidism, and Obesity in Children.

      Advanced in Vitamin B12 Deficiency
      Advanced in Vitamin B12 Deficiency

      Absnec Anesthesiology PC

      800 Community Dr Ste 309, 
      Manhasset,, NY 
       (3.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Robert Rahmani is a Cardiologist in Manhasset,, New York. Dr. Rahmani is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are May Thurner Syndrome, SVC Obstruction, Familial Neurocardiogenic Syncope, Pacemaker Implantation, and Gastrostomy.

      Francisco A. Garcia
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology
      2800 Marcus Avenue, Suite 200, 
      New Hyde Park, NY 
       (3.6 miles away)
      Languages Spoken:
      English, Spanish
      Offers Telehealth

      Francisco Garcia is a Hematologist and an Oncologist in New Hyde Park, New York. Dr. Garcia is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Alpha Thalassemia X-Linked Intellectual Disability Syndrome, Alpha Thalassemia, Thalassemia, and Monoclonal Gammopathy of Undetermined Significance (MGUS).

      Brij M. Sharma
      Experienced in Vitamin B12 Deficiency
      Pulmonary Medicine
      Experienced in Vitamin B12 Deficiency
      Pulmonary Medicine
      216 Willis Avenue, 
      Roslyn Heights, NY 
       (3.7 miles away)
      Languages Spoken:
      English, Hindi, Punjabi
      Offers Telehealth

      Brij Sharma is a Pulmonary Medicine provider in Roslyn Heights, New York. Dr. Sharma is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Chronic Cough, Vitamin D Deficiency, Vertigo, and Endoscopy.

      Steven Goldberg
      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Optum Cardiology-Lake Success-Dakota Dr

      1 Dakota Dr Ste 310, 
      New Hyde Park,, NY 
       (3.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Steven Goldberg is a Cardiologist in New Hyde Park,, New York. Dr. Goldberg is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Atherosclerosis, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Henry Gomez
      Experienced in Vitamin B12 Deficiency
      Cardiology
      Experienced in Vitamin B12 Deficiency
      Cardiology

      Long Island Cardiovascular Imaging Consultants PC

      1983 Marcus Ave Ste E124, 
      New Hyde Park,, NY 
       (3.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Henry Gomez is a Cardiologist in New Hyde Park,, New York. Dr. Gomez is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Sitosterolemia, High Cholesterol, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Ronald D'agostino
      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Long Island Cardiovascular Imaging Consultants PC

      1983 Marcus Ave Ste E124, 
      New Hyde Park, NY 
       (3.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Ronald D'agostino is a Cardiologist in New Hyde Park, New York. Dr. D'agostino is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Ectopic Heartbeat.

      Advanced in Vitamin B12 Deficiency
      Gastroenterology
      Advanced in Vitamin B12 Deficiency
      Gastroenterology
      1983 Marcus Avenue, Suite E124, 
      New Hyde Park, NY 
       (3.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Gregory Ackert is a Gastroenterologist in New Hyde Park, New York. Dr. Ackert is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Hemorrhoids, Cirrhosis, Barrett Esophagus, and Esophageal Varices.

      Veena S. John
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology

      Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

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

      Veena John is an Oncologist in Lake Success, New York. Dr. John is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Ovarian Cancer, Endometrial Cancer, Testicular Yolk Sac Tumor, Malignant Mixed Mullerian Tumor, and Salpingo-Oophorectomy.

      Xinhua Zhu
      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

      450 Lakeville Road, Entrance B, 
      Lake Success, NY 
       (4.0 miles away)
      Languages Spoken:
      English, Mandarin
      Offers Telehealth

      Xinhua Zhu is an Oncologist in Lake Success, New York. Dr. Zhu is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Non-Muscle Invasive Bladder Cancer, Muscle Invasive Bladder Cancer, Prostate Cancer, and WT1-Related Wilms Tumor Syndromes.

      Eileen S. Milano
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology

      Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

      450 Lakeville Road, Entrance B, 
      Lake Success, NY 
       (4.0 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Eileen Milano is a Hematologist and an Oncologist in Lake Success, New York. Dr. Milano is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Angiosarcoma, Anemia, Breast Cancer, and Paget Disease of the Breast.

      Maria J. Nieto
      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Northwell Health Center For Advanced Medicine, RJ Zuckerberg Cancer Center

      450 Lakeville Road, Entrance B, 
      Lake Success, NY 
       (4.0 miles away)
      Languages Spoken:
      English, Spanish

      Maria Nieto is an Oncologist in Lake Success, New York. Dr. Nieto is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are ALK-Positive Non-Small Cell Lung Cancer, Lung Adenocarcinoma, Squamous Cell Lung Carcinoma, Bone Marrow Aspiration, and Tissue Biopsy.

      Marius L. Pessah
      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Northwell Health Physician Partners Internal Medicine At New Hyde Park

      1575 Hillside Avenue, Suite 102, 
      New Hyde Park, NY 
       (4.0 miles away)
      Languages Spoken:
      English

      Marius Pessah is a Nephrologist in New Hyde Park, New York. Dr. Pessah is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin D Deficiency, Carbuncle, Boils, and Folliculitis.

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

      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. His top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and High Cholesterol.

      Showing 1-20 of 600

      Last Updated: 01/09/2026

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