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    Last Updated: 01/09/2026

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    MediFind found 218 doctor with experience in Vitamin B12 Deficiency near Greenlawn, NY. Of these, 180 are Experienced, 34 are Advanced and 4 are Distinguished.

    Location
    LocationClose
    218 providers found
      Distinguished in Vitamin B12 Deficiency
      Endocrinology
      Distinguished in Vitamin B12 Deficiency
      Endocrinology

      Edward Condon Medical PC

      6080 Jericho Tpke Ste 314, 
      Commack, NY 
       (4.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Edward Condon is an Endocrinologist in Commack, New York. Dr. Condon is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Hashimoto Thyroiditis, Polycystic Ovary Syndrome, Obesity in Children, and Infertility.

      Alexander M. O'connell
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      5 Cuba Hill Road, 
      Greenlawn, NY 
       (0.3 miles away)
      Languages Spoken:
      English

      Alexander O'connell is a primary care provider, practicing in Internal Medicine in Greenlawn, New York. Dr. O'connell is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Vitamin D Deficiency, Hypothyroidism, and Glucocorticoid-Remediable Aldosteronism.

      Sadia Riaz
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      Northwell Health Cancer Institute At Huntington

      270 Pulaski Road, Suite D, 
      Greenlawn, NY 
       (1.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Sadia Riaz is a Hematologist Oncology specialist and a Hematologist in Greenlawn, New York. Dr. Riaz is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Non-Hodgkin Lymphoma, Anemia, Gastric Lymphoma, Thrombotic Thrombocytopenic Purpura, and Bone Marrow Aspiration.

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

      Mount Sinai Doctors Laboratory

      5 Cuba Hill Rd, 
      Greenlawn,, NY 
       (0.3 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Deborah Neumann is a Cardiologist in Greenlawn,, New York. Dr. Neumann is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Sitosterolemia, High Cholesterol, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Cohen Bergman & Klepper M.D.'S P.C.

      175 E Main St Ste 200, 
      Huntington,, NY 
       (2.0 miles away)
      Languages Spoken:
      English

      James Klepper is a Cardiologist in Huntington,, New York. Dr. Klepper is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are High Cholesterol, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Mitral Valve Regurgitation.

      Experienced in Vitamin B12 Deficiency
      Cardiology
      Experienced in Vitamin B12 Deficiency
      Cardiology

      Cohen Bergman & Klepper M.D.'S P.C.

      175 E Main St Ste 200, 
      Huntington, NY 
       (2.0 miles away)
      Languages Spoken:
      English

      Mark Bergman is a Cardiologist in Huntington, New York. Dr. Bergman 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 Heart Murmurs.

      Experienced in Vitamin B12 Deficiency
      Cardiology
      Experienced in Vitamin B12 Deficiency
      Cardiology

      Cohen Bergman & Klepper M.D.'S P.C.

      175 E Main St Ste 200, 
      Huntington, NY 
       (2.0 miles away)
      Languages Spoken:
      English

      Paval Romano is a Cardiologist in Huntington, New York. Dr. Romano is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Heart Murmurs, High Cholesterol, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

      Experienced in Vitamin B12 Deficiency
      Cardiology
      Experienced in Vitamin B12 Deficiency
      Cardiology

      Cohen Bergman & Klepper M.D.'S P.C.

      175 E Main St Ste 200, 
      Huntington, NY 
       (2.0 miles away)
      Languages Spoken:
      English

      Joshua Klein is a Cardiologist in Huntington, New York. Dr. Klein 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, High Cholesterol, and Familial Neurocardiogenic Syncope.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Office

      325 Park Ave, 
      Huntington,, NY 
       (2.8 miles away)
      Languages Spoken:
      English

      Kenneth Walsh is a Cardiologist in Huntington,, New York. Dr. Walsh is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin D Deficiency, Sitosterolemia, Glucocorticoid-Remediable Aldosteronism, and Hypertension.

      Hon C. Chan
      Advanced in Vitamin B12 Deficiency
      Hematology | Oncology
      Advanced in Vitamin B12 Deficiency
      Hematology | Oncology

      Northwell Health Physician Partners Medical Oncology At Woodbury

      40 Crossways Park Drive, Suite 103, 
      Woodbury, NY 
       (7.5 miles away)
      Languages Spoken:
      English, Cantonese
      Offers Telehealth

      Hon Chan is a Hematologist and an Oncologist in Woodbury, New York. Dr. Chan is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Hemangioma Thrombocytopenia Syndrome, Thrombocytopenia, and Immune Thrombocytopenic Purpura (ITP).

      Nancy N. Sun
      Advanced in Vitamin B12 Deficiency
      Hematology | Oncology
      Advanced in Vitamin B12 Deficiency
      Hematology | Oncology

      Northwell Health Physician Partners Medical Oncology At Woodbury

      40 Crossways Park Drive, Suite 103, 
      Woodbury, NY 
       (7.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Nancy Sun is a Hematologist and an Oncologist in Woodbury, New York. Dr. Sun is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Hemangioma Thrombocytopenia Syndrome, RUNX1 Familial Platelet Disorder, Adult Immune Thrombocytopenia, and Immune Thrombocytopenic Purpura (ITP).

      Bruce I. Kappel
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology

      Northwell Health Physician Partners Medical Oncology At Woodbury

      40 Crossways Park Drive, Suite 103, 
      Woodbury, NY 
       (7.5 miles away)
      Experience:
      44+ years
      Languages Spoken:
      English

      Bruce Kappel is a Hematologist and an Oncologist in Woodbury, New York. Dr. Kappel has been practicing medicine for over 44 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Thrombocytopenia, Hemangioma Thrombocytopenia Syndrome, Adult Immune Thrombocytopenia, and Immune Thrombocytopenic Purpura (ITP).

      Randolph P. Dilorenzo
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine

      Northwell Health Physician Partners Medicine At Woodbury, Froehlich Farm

      155 Froehlich Farm Boulevard, 
      Woodbury, NY 
       (7.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Randolph Dilorenzo is a primary care provider, practicing in Internal Medicine in Woodbury, New York. Dr. Dilorenzo is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Infant Hyperglycemia, Bronchitis, High Cholesterol, and Familial Hypertension.

      Distinguished in Vitamin B12 Deficiency
      Endocrinology
      Distinguished in Vitamin B12 Deficiency
      Endocrinology

      Endocrine Associates Of Long Island PC

      732 Smithtown Byp Ste 103, 
      Smithtown, NY 
       (8.1 miles away)
      Experience:
      44+ years
      Languages Spoken:
      English

      David Kugler is an Endocrinologist in Smithtown, New York. Dr. Kugler has been practicing medicine for over 44 years and is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Hashimoto Thyroiditis, Type 2 Diabetes (T2D), Vitamin B12 Deficiency, and Idiopathic Hypercalciuria.

      Ian Newmark
      Experienced in Vitamin B12 Deficiency
      Pulmonary Medicine
      Experienced in Vitamin B12 Deficiency
      Pulmonary Medicine

      North Shore Lij Medical Group At Syosset PC

      8 Greenfield Rd, 
      Syosset, NY 
       (8.6 miles away)
      Languages Spoken:
      English

      Ian Newmark is a Pulmonary Medicine provider in Syosset, New York. Dr. Newmark is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Asthma in Children, Asthma, Grass Allergy, and Empyema.

      Distinguished in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Distinguished in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      North Shore Hematology Oncology Associates PC

      48 Route 25a, 
      Smithtown, NY 
       (9.4 miles away)
      Languages Spoken:
      English

      Fauzia Paracha is a Hematologist Oncology specialist and a Hematologist in Smithtown, New York. Dr. Paracha is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Anemia, Vitamin B12 Deficiency, Childhood Iron Deficiency Anemia, and Iron Deficiency Anemia.

      Distinguished in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Distinguished in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      North Shore Hematology Oncology Associates PC

      48 Route 25a, 
      Smithtown, NY 
       (9.4 miles away)
      Languages Spoken:
      English

      Ramamohana Kancherla is a Hematologist Oncology specialist and a Hematologist in Smithtown, New York. Dr. Kancherla is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Severe Congenital Neutropenia, Agranulocytosis, Chronic Familial Neutropenia, Pulmonary Embolism, and Gastrostomy.

      Sanjeev Jain
      Experienced in Vitamin B12 Deficiency
      Hematology
      Experienced in Vitamin B12 Deficiency
      Hematology

      North Shore Hematology Oncology Associates PC

      48 Route 25a, 
      Smithtown, NY 
       (9.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Sanjeev Jain is a Hematologist in Smithtown, New York. Dr. Jain is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Anemia, Blood Clots, Lung Cancer, and Childhood Iron Deficiency Anemia.

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

      North Shore Medical Group Of The Mount Sinai School Of Medicine

      5 Cuba Hill Rd, 
      Greenlawn, NY 
       (0.3 miles away)
      Languages Spoken:
      English

      Jonathan Boxer is a primary care provider, practicing in Internal Medicine in Greenlawn, New York. Dr. Boxer is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Sitosterolemia, Vitamin D Deficiency, High Cholesterol, and Hypertension.

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

      North Shore Medical Group Of The Mount Sinai School Of Medicine

      5 Cuba Hill Rd, 
      Greenlawn, NY 
       (0.3 miles away)
      Languages Spoken:
      English

      Grace Tyndall is a primary care provider, practicing in Internal Medicine in Greenlawn, New York. Dr. Tyndall is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Sitosterolemia, Vitamin D Deficiency, High Cholesterol, and Hypothyroidism.

      Showing 1-20 of 218

      Last Updated: 01/09/2026

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