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    Last Updated: 01/09/2026

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    MediFind found 218 doctor with experience in Vitamin B12 Deficiency near Commack, NY. Of these, 181 are Experienced, 33 are Advanced and 4 are Distinguished.

    Location
    LocationClose
    218 providers found
      Distinguished in Vitamin B12 Deficiency
      Endocrinology
      Distinguished in Vitamin B12 Deficiency
      Endocrinology
      6080 Jericho Turnpike, 
      Commack, NY 
       (0.7 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 
       (3.9 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.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Mount Sinai Doctors Laboratory

      5 Cuba Hill Rd, 
      Greenlawn,, NY 
       (4.3 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.

      Learn about our expert tiers
      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 
       (5.2 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.

      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 
       (5.7 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 
       (5.7 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 
       (5.7 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.

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

      Endocrine Associates Of Long Island, PC

      732 Smithtown Byp, Suite 103, 
      Smithtown, NY 
       (6.7 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.

      Kenneth D. Gold
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Hematology | Oncology | Internal Medicine

      Northwell Health Imbert Cancer Center

      440 East Main Street, 
      Bay Shore, NY 
       (8.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Kenneth Gold is a Hematologist and an Oncologist in Bay Shore, New York. Dr. Gold is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Small Cell Lung Cancer (SCLC), Pleuropulmonary Blastoma, Lung Cancer, and Inflammatory Breast Cancer.

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

      City Medical Of Upper East Side PLLC

      6500 Jericho Tpke, Suite 23a, 
      Commack, NY 
       (0.1 miles away)
      Languages Spoken:
      English

      Charles Timson is a primary care provider, practicing in Family Medicine in Commack, New York. Dr. Timson 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, Empyema, and Sinusitis.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      283 Commack Rd, Suite 200, 
      Commack, NY 
       (0.5 miles away)
      Languages Spoken:
      English

      Paul Berger is a primary care provider, practicing in Internal Medicine in Commack, New York. Dr. Berger is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Tracheitis, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

      Experienced in Vitamin B12 Deficiency
      Gastroenterology
      Experienced in Vitamin B12 Deficiency
      Gastroenterology
      283 Commack Rd, 
      Commack, NY 
       (0.5 miles away)
      Languages Spoken:
      English

      Jacques Schmid is a Gastroenterologist in Commack, New York. Dr. Schmid is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Irritable Bowel Syndrome (IBS), Emphysema, Vitamin D Deficiency, and Gastrectomy.

      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine

      Chs Physician Partners PC

      994 W Jericho Tpke, Suite 201, 
      Smithtown, NY 
       (2.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Farzana Aziz is a primary care provider, practicing in Geriatrics and Internal Medicine in Smithtown, New York. Dr. Aziz is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Sitosterolemia, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

      Experienced in Vitamin B12 Deficiency
      Nurse Practitioner
      Experienced in Vitamin B12 Deficiency
      Nurse Practitioner
      101 Laurel Rd, 
      East Northport, NY 
       (3.3 miles away)
      Languages Spoken:
      English

      Filippa Petruccelli is a Nurse Practitioner in East Northport, New York. Ms. Petruccelli is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top area of expertise is Vitamin B12 Deficiency.

      Experienced in Vitamin B12 Deficiency
      Physician Assistant
      Experienced in Vitamin B12 Deficiency
      Physician Assistant
      93 Main Street, Suite A, 
      Kings Park, NY 
       (3.5 miles away)
      Languages Spoken:
      English

      Elana Coscetta is a Physician Assistant in Kings Park, New York. Ms. Coscetta is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top area of expertise is Vitamin B12 Deficiency.

      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 
       (4.3 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 
       (4.3 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.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      North Shore Medical Group Of The Mount Sinai School Of Medicine

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

      Howard Greenberg is a Hematologist in Greenlawn, New York. Dr. Greenberg is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Myelodysplastic Syndrome (MDS), Thrombocytopenia, Idiopathic Neutropenia, and Essential Thrombocythemia.

      Experienced in Vitamin B12 Deficiency
      Physician Assistant
      Experienced in Vitamin B12 Deficiency
      Physician Assistant

      Rajeswara Rao Patcha, Md,pc

      325 Main St, 
      Northport, NY 
       (4.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Karen Olivieri is a Physician Assistant in Northport, New York. Ms. Olivieri is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vitamin B12 Deficiency, Vitamin D Deficiency, Discoid Lupus Erythematosus (DLE), and Muscle Spasms.

      Experienced in Vitamin B12 Deficiency
      Nurse Practitioner
      Experienced in Vitamin B12 Deficiency
      Nurse Practitioner
      325 Main St, Suite 2b, 
      Northport, NY 
       (4.8 miles away)
      Languages Spoken:
      English

      Chrystyne Olivieri is a Nurse Practitioner in Northport, New York. Ms. Olivieri is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top area of expertise is Vitamin B12 Deficiency.

      Showing 1-20 of 218

      Last Updated: 01/09/2026

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