Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 10/30/2025

    Save doctors for later
    Sign Up
    Not sure about your diagnosis?
    Check Your Symptoms
    Already have a doctor?
    Find A Second Opinion

    MediFind found 215 doctor with experience in Vitamin B12 Deficiency near Commack, NY. Of these, 179 are Experienced, 33 are Advanced and 3 are Distinguished.

    Location
    LocationClose
    215 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 Hypertension.

      What does Elite, Distinguished, Advanced, Experienced mean?
      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.

      Learn about our expert tiers
      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)
      Languages Spoken:
      English
      Offers Telehealth

      David Kugler is an Endocrinologist in Smithtown, New York. Dr. Kugler 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 Milk-Alkali Syndrome.

      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
      Experienced in Vitamin B12 Deficiency

      Chs Physician Partners PC

      500 Commack Rd, Unit 150d, 
      Commack, NY 
       (1.4 miles away)
      Languages Spoken:
      English

      Kenneth Walsh is a Cardiologist in Commack, 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, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency
      554 Larkfield Rd, Suite 10g, 
      East Northport, NY 
       (1.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jennifer Mcmonigle is a Neurologist in East Northport, New York. Dr. Mcmonigle is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vasoconstriction, Generalized Tonic-Clonic Seizure, Seizures, and Memory Loss.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      994 W Jericho Tpke, Suite 201, 
      Smithtown, NY 
       (2.5 miles away)
      Languages Spoken:
      English

      Roberta Bianco is a primary care provider, practicing in Family Medicine in Smithtown, New York. Dr. Bianco is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Otitis, Parainfluenza, Parainfluenza Virus Type 3, and High Cholesterol.

      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, Hypertension, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism.

      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
      Experienced in Vitamin B12 Deficiency
      5 Cuba Hill Road, 
      Greenlawn, NY 
       (3.9 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      I am a community based cardiologist with an interest in preventive cardiology. At out office, we are able to do stress testing, echocardiography, holter and blood pressure monitors, and laboratory work.I believe in treating the whole patient, not just the heart.I believe that part of my job is to be an advocate for my patient, making sure that they get the best care possible.I work with three other cardiologists so there is always someone available in case of emergency. 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
      Internal Medicine | Emergency Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine | Emergency Medicine
      267 E Main St Bldg C, 
      Smithtown, NY 
       (4.3 miles away)
      Languages Spoken:
      English

      Ronni Sollazzo is an Emergency Medicine provider in Smithtown, New York. Dr. Sollazzo is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vitamin B12 Deficiency and Vitamin D Deficiency.

      Experienced in Vitamin B12 Deficiency
      Hospital Medicine | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Hospital Medicine | Internal Medicine
      1045 West Jericho Turnpike, 
      Smithtown, NY 
       (4.3 miles away)
      Languages Spoken:
      English, Spanish
      Offers Telehealth

      Marc Allen is a primary care provider, practicing in Internal Medicine and Hospital Medicine in Smithtown, New York. Dr. Allen is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Cholesteryl Ester Storage Disease, Chanarin-Dorfman Syndrome, Lysosomal Acid Lipase Deficiency, and Lipidosis with Triglycerid Storage Disease.

      Experienced in Vitamin B12 Deficiency
      Nurse Practitioner
      Experienced in Vitamin B12 Deficiency
      Nurse Practitioner

      North Shore Medical Group Of The Mount Sinai School Of Medicine

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

      Stacey Cedeno is a Nurse Practitioner in Greenlawn, New York. Ms. Cedeno is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Vitamin D Deficiency and 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 Familial 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
      Hematology Oncology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Oncology

      North Shore Medical Group Of The Mount Sinai School Of Medicine

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

      Evan Diamond is a Hematologist Oncology specialist and an Oncologist in Greenlawn, New York. Dr. Diamond is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Blood Clots, Anemia, Malabsorption, and Hemochromatosis.

      Showing 1-20 of 215

      Last Updated: 10/30/2025

      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 

      Read more about our Content Policy