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

Find the Top Vitamin B12 Deficiency Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 140 doctor with experience in Vitamin B12 Deficiency near selden, NY. Of these, 124 are Experienced, 14 are Advanced and 2 are Distinguished.

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140 providers found
    Experienced in Vitamin B12 Deficiency
    Family Medicine
    Experienced in Vitamin B12 Deficiency
    Family Medicine

    Office

    10 Medical Dr Ste B, 
    Port Jefferson Station, NY 
     (3.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Mark Shapiro is a primary care provider, practicing in Family Medicine in Port Jefferson Station, New York. Dr. Shapiro is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Necrosis, Peptic Ulcer, Stasis Dermatitis and Ulcers, and Cellulitis. Dr. Shapiro is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Rheumatology
    Advanced in Vitamin B12 Deficiency
    Rheumatology
    Referral may be required

    Rheumatology Associates Of L.I. LLP

    7 Medical Dr, 
    Port Jefferson Station, NY 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Hong Xu is a Rheumatologist practicing medicine in Port Jefferson Station, New York. Dr. Xu is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 29 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Rhizomelic Pseudopolyarthritis, Polymyalgia Rheumatica, and Raynaud Phenomenon. Dr. Xu is currently accepting new patients.

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

    Office

    7 Medical Dr, 
    Port Jefferson Station, NY 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Luiziana Marinescu is a Rheumatologist practicing medicine in Port Jefferson Station, New York. Dr. Marinescu is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 30 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Psoriatic Arthritis, Psoriasis, and Postmenopausal Osteoporosis. Dr. Marinescu is currently accepting new patients.

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

    Medford MultiCare Center For Living

    3115 Horseblock Rd, 
    Medford, NY 
     (3.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Wei Kao is a primary care provider, practicing in Internal Medicine in Medford, New York. Dr. Kao is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 60 other conditions, according to our data. His clinical expertise encompasses Painful Swallowing, Swallowing Difficulty, Anemia, and Muscle Atrophy.

    Experienced in Vitamin B12 Deficiency
    Experienced in Vitamin B12 Deficiency
    Referral required

    Northwell Health Physician Partners Diabetes & Endocrinology At Medford

    1723 North Ocean Avenue, Suite A, 
    Medford, NY 
     (3.9 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Clara Lengyel-Kremenic is an Endocrinologist practicing medicine in Medford, New York. Dr. Lengyel-Kremenic is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Hypothyroidism, Type 2 Diabetes (T2D), Obesity in Children, and Type 1 Diabetes (T1D). Dr. Lengyel-Kremenic is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine/Endocrinology, Diabetes & Metabolism. Dr. Lengyel-Kremenic is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Internal Medicine
    Advanced in Vitamin B12 Deficiency
    Internal Medicine

    First Choice Medical PLLC

    203 Union Ave, 
    Holbrook, NY 
     (4.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Lawrence Goldman is a primary care provider, practicing in Internal Medicine in Holbrook, New York. Dr. Goldman is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and High Cholesterol.

    Advanced in Vitamin B12 Deficiency
    Family Medicine
    Advanced in Vitamin B12 Deficiency
    Family Medicine

    Office

    122 Portion Rd, 
    Ronkonkoma, NY 
     (4.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Ismail Ozcan is a primary care provider, practicing in Family Medicine in Ronkonkoma, New York. Dr. Ozcan is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 38 other conditions, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Anemia, Sitosterolemia, and Familial Hypertriglyceridemia.

    Advanced in Vitamin B12 Deficiency
    Nurse Practitioner
    Advanced in Vitamin B12 Deficiency
    Nurse Practitioner
    Referral may be required

    Ismail Ozcan MD PC

    122 Portion Rd, 
    Ronkonkoma, NY 
     (4.8 miles away)
    Languages Spoken:
    English

    Turkan Ozcan is a Nurse Practitioner practicing medicine in Ronkonkoma, New York. Ozcan, NP is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Vitamin D Deficiency, Vitamin B12 Deficiency, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

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

    Office

    16 Nicolls Rd, 
    Stony Brook, NY 
     (5.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Bareia Chaudhry is a Hematologist practicing medicine in Stony Brook, New York. Dr. Chaudhry is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Pulmonary Embolism, Anemia, Thrombocytopenia, and Antiphospholipid Syndrome.

    Advanced in Vitamin B12 Deficiency
    Gastroenterology
    Advanced in Vitamin B12 Deficiency
    Gastroenterology
    Referral may be required

    North Shore Medical Group Of The Mount Sinai School Of Medicine

    59 Southern Blvd, 
    Nesconset, NY 
     (6.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Augustus Mantia is a Gastroenterologist practicing medicine in Nesconset, New York. Dr. Mantia is rated as an Advanced 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 Hemorrhoids, Vitamin D Deficiency, Vitamin B12 Deficiency, Ureteroscopy, and Endoscopy. Dr. Mantia is currently accepting new patients.

    Advanced in Vitamin B12 Deficiency
    Family Medicine
    Advanced in Vitamin B12 Deficiency
    Family Medicine

    Office

    1500 Ocean Ave Ste C, 
    Bohemia, NY 
     (8.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sareth Pinnamaneni is a primary care provider, practicing in Family Medicine in Bohemia, New York. Dr. Pinnamaneni is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Lyme Disease, Hypothyroidism, Glossitis, and Pernicious Anemia. Dr. Pinnamaneni is currently accepting new patients.

    Distinguished in Vitamin B12 Deficiency
    Endocrinology
    Distinguished in Vitamin B12 Deficiency
    Endocrinology
    Referral required

    Endocrine Associates Of Long Island PC

    732 Smithtown Byp Ste 103, 
    Smithtown, NY 
     (9.2 miles away)
    Experience:
    44+ years
    Languages Spoken:
    English
    Accepting New Patients

    David Kugler is an Endocrinologist practicing medicine in Smithtown, New York. He has been practicing medicine for over 44 years. Dr. Kugler is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Hashimoto Thyroiditis, Type 2 Diabetes (T2D), Vitamin B12 Deficiency, and Familial Hypocalciuric Hypercalcemia Type 1. Dr. Kugler is currently accepting new patients.

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

    Quantum Cardiovascular Services

    400 Horseblock Rd Ste H, 
    Farmingville, NY 
     (2.0 miles away)
    Languages Spoken:
    English

    Kim Vitacco is a Nurse Practitioner practicing medicine in Farmingville, New York. Vitacco, NP is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her clinical expertise encompasses Vitamin B12 Deficiency and Vitamin D Deficiency.

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

    William T. Konczynin & David M. Heckler Physicians PC

    266 Middle Country Rd, 
    Coram, NY 
     (2.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Faiza Ali is a primary care provider, practicing in Family Medicine in Coram, New York. Dr. Ali is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Parainfluenza, Parainfluenza Virus Type 3, Empyema, and Sinusitis.

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

    Elsie Owens HLTH Ctr At Hudson River Hlthcare

    82 Middle Country Rd, 
    Coram, NY 
     (2.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rahkil Maizel is a primary care provider, practicing in Family Medicine in Coram, New York. Dr. Maizel is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her clinical expertise encompasses Subacute Combined Degeneration, Maturity Onset Diabetes of the Young, Folate Deficiency, and Vitamin B12 Deficiency Anemia.

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

    North Shore Hematology Oncology Associates PC

    1500 Route 112, 
    Port Jefferson Station, NY 
     (3.2 miles away)
    Languages Spoken:
    English

    Daniel Laieta is a primary care provider, practicing in Internal Medicine in Port Jefferson Station, New York. Dr. Laieta is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Tracheitis.

    Experienced in Vitamin B12 Deficiency
    Experienced in Vitamin B12 Deficiency

    Office

    5225 Nesconset Hwy Ste 53, 
    Port Jefferson Station, NY 
     (3.3 miles away)
    Languages Spoken:
    English

    Pedro Roque-Rodriguez is a primary care provider, practicing in Internal Medicine in Port Jefferson Station, New York. Dr. Roque-Rodriguez is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Peptic Ulcer, Necrosis, Cellulitis, and Stasis Dermatitis and Ulcers.

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

    Northwell Health GoHealth Urgent Care In Port Jefferson

    5145 Nesconset Hwy Ste 4, 
    Port Jefferson Station, NY 
     (3.3 miles away)
    Languages Spoken:
    English

    Xian Li is a primary care provider, practicing in Family Medicine in Port Jefferson Station, New York. Dr. Li is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Canker Sore, Aphthous Stomatitis, Sutton Disease 2, Mouth Sores, and Gastrostomy.

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

    Office

    4 Technology Dr Ste 130, 
    East Setauket, NY 
     (3.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Zeenat Hussain is a primary care provider, practicing in Internal Medicine in East Setauket, New York. Dr. Hussain is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Peroxisomal Acyl-CoA Oxidase Deficiency, Primary Carnitine Deficiency, Carnitine-Acylcarnitine Translocase Deficiency, and Chronic Kidney Disease.

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

    Office

    49 Route 347, 
    Port Jefferson Station, NY 
     (3.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Adriana Guigova is a Hematologist practicing medicine in Port Jefferson Station, New York. Dr. Guigova is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Blood Clots, Anemia, Malabsorption, and Thrombocytopenia.

    Showing 1-20 of 140

    Last Updated: 09/26/2026

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