The 20 Best Vitamin D Deficiency Doctors Near Me in Ronkonkoma, NY

Find the Top Vitamin D Deficiency Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 448 doctor with experience in Vitamin D Deficiency near Ronkonkoma, NY. Of these, 371 are Experienced, 66 are Advanced and 10 are Distinguished.

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448 providers found
    Distinguished in Vitamin D Deficiency
    Family Medicine
    Distinguished in Vitamin D Deficiency
    Family Medicine

    Office

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

    Ismail Ozcan is a Family Medicine provider practicing medicine in Ronkonkoma, New York. Dr. Ozcan is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Vitamin D Deficiency, Vitamin B12 Deficiency, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Folliculitis.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Northwell Health Physician Partners Diabetes And Endocrinology At Islandia

    3001 Expressway Drive North, Suite 112, 
    Islandia, NY 
     (2.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sujata Kumbar is an Endocrinologist practicing medicine in Islandia, New York. Dr. Kumbar is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Obesity in Children, Thyroid Nodule, and Hypothyroidism. Dr. Kumbar is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine/Endocrinology, Diabetes & Metabolism.

    Advanced in Vitamin D Deficiency
    Hospital Medicine
    Advanced in Vitamin D Deficiency
    Hospital Medicine
    59 Southern Boulevard, 
    Nesconset, NY 
     (2.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Joanne Kechejian is a primary care provider, practicing in Hospital Medicine in Nesconset, New York. Dr. Kechejian is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 22 other conditions, according to our data. Her clinical expertise encompasses Subacute Combined Degeneration, Multiple Carboxylase Deficiency, Folate Deficiency, and Vitamin B12 Deficiency Anemia.

    Learn about our expert tiers
    Distinguished in Vitamin D Deficiency
    Family Medicine
    Distinguished in Vitamin D Deficiency
    Family Medicine

    E.Lila Augoustiniatos MD PC

    100 Terry Rd, 
    Smithtown, NY 
     (4.0 miles away)
    Languages Spoken:
    English

    Darla Lynch is a primary care provider, practicing in Family Medicine in Smithtown, New York. Dr. Lynch is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Vitamin D Deficiency, Obesity in Children, Folate-Deficiency Anemia, and Hypothyroidism.

    Experienced in Vitamin D Deficiency
    Infectious Disease
    Experienced in Vitamin D Deficiency
    Infectious Disease

    Northwell Health Physician Partners At Smithtown

    222 Middle Country Road, Suite 330, 
    Smithtown, NY 
     (4.7 miles away)
    Languages Spoken:
    English

    Bernard Nash is an Infectious Disease provider practicing medicine in Smithtown, New York. Dr. Nash is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Nontuberculous Mycobacterial Lung Disease, Myelitis, AIDS Dementia Complex, and HIV/AIDS. Dr. Nash is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine/Infectious Disease.

    Experienced in Vitamin D Deficiency
    Hematology
    Experienced in Vitamin D Deficiency
    Hematology

    North Shore Hematology Oncology Associates PC

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

    Sanjeev Jain is a Hematologist practicing medicine in Smithtown, New York. Dr. Jain is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Anemia, Blood Clots, Childhood Iron Deficiency Anemia, and Lung Cancer. Dr. Jain is board certified in American Board Of IM/Hematology and American Board Of IM/Medical Oncology.

    Distinguished in Vitamin D Deficiency
    Family Medicine
    Distinguished in Vitamin D Deficiency
    Family Medicine

    Dr. Anthony J. Rizzo

    200 Howells Rd, 
    Bay Shore, NY 
     (9.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Anthony Rizzo is a primary care provider, practicing in Family Medicine in Bay Shore, New York. Dr. Rizzo is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 138 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Gastrostomy, and Endoscopy.

    Distinguished in Vitamin D Deficiency
    Endocrinology
    Distinguished in Vitamin D Deficiency
    Endocrinology
    6080 Jericho Turnpike, 
    Commack, NY 
     (9.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Edward Condon is an Endocrinologist practicing medicine in Commack, New York. Dr. Condon is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 58 other conditions, according to our data. His clinical expertise encompasses Hashimoto Thyroiditis, Polycystic Ovary Syndrome, Obesity in Children, and Infertility.

    Experienced in Vitamin D Deficiency
    Physician Assistant | Dermatology
    Experienced in Vitamin D Deficiency
    Physician Assistant | Dermatology
    500 Portion Rd # 11, 
    Ronkonkoma, NY 
     (0.7 miles away)
    Languages Spoken:
    English

    Mariah Messina is a Dermatologist practicing medicine in Ronkonkoma, New York. Dr. Messina is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Vitamin D Deficiency and Plaque Psoriasis.

    Experienced in Vitamin D Deficiency
    Internal Medicine
    Experienced in Vitamin D Deficiency
    Internal Medicine

    Anna M Mirski Primary Medical Care PLLC

    1690 Washington Ave Ste C, 
    Bohemia, NY 
     (2.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Adalbert Pilip is an Internal Medicine provider practicing medicine in Bohemia, New York. Dr. Pilip is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Peripheral Artery Disease, Arterial Insufficiency, Peroxisomal Acyl-CoA Oxidase Deficiency, and Carnitine-Acylcarnitine Translocase Deficiency.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Northwell Health Physician Partners Diabetes And Endocrinology At Islandia

    3001 Expressway Drive North, Suite 112, 
    Islandia, NY 
     (2.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sofia Syed is an Endocrinologist practicing medicine in Islandia, New York. Dr. Syed is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), Postmenopausal Osteoporosis, and Osteoporosis.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    North Suffolk Endocrinology P.C.

    57 Southern Blvd Ste 1, 
    Nesconset, NY 
     (2.8 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Joseph Terrana is an Endocrinologist practicing medicine in Nesconset, New York. Dr. Terrana is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Hashimoto Thyroiditis, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Obesity in Children.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Office

    4 Smith Haven Mall Ste 203, 
    Lake Grove, NY 
     (3.6 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Alan Chang is an Endocrinologist practicing medicine in Lake Grove, New York. He has been practicing medicine for over 17 years. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Type 1 Diabetes (T1D), Thyroid Nodule, and Thyroid Storm.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    Optum Medical Care P.C.

    50 Route 111 Ste 200, 
    Smithtown, NY 
     (4.6 miles away)
    Languages Spoken:
    English

    Amrita Srivastava is an Endocrinologist practicing medicine in Smithtown, New York. Dr. Srivastava is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Type 2 Diabetes (T2D), Hypothyroidism, Obesity in Children, and Thyroid Storm.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency
    1 Kings Highway, 
    Hauppauge, NY 
     (5.0 miles away)
    Languages Spoken:
    English

    Joel Hershey is a primary care provider, practicing in Pediatrics in Hauppauge, New York. Dr. Hershey is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His clinical expertise encompasses Vitamin D Deficiency, Cellulitis, Parainfluenza, and Parainfluenza Virus Type 3. Dr. Hershey is board certified in American Board Of Pediatrics.

    Advanced in Vitamin D Deficiency
    Endocrinology
    Advanced in Vitamin D Deficiency
    Endocrinology

    Northwell Health Physician Partners Diabetes & Endocrinology At Medford

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

    Clara Lengyel is an Endocrinologist practicing medicine in Medford, New York. Dr. Lengyel is rated as an Advanced provider by MediFind in the treatment of Vitamin D 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 is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine/Endocrinology, Diabetes & Metabolism.

    Advanced in Vitamin D Deficiency
    Family Medicine
    Advanced in Vitamin D Deficiency
    Family Medicine

    Office

    601 Portion Rd Ste 2, 
    Lk Ronkonkoma, NY 
     (0.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Blessan Thomas is a primary care provider, practicing in Family Medicine in Lk Ronkonkoma, New York. Dr. Thomas is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 64 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Vitamin D Deficiency, Vitamin B12 Deficiency Anemia, and Folate Deficiency.

    Advanced in Vitamin D Deficiency
    Internal Medicine
    Advanced in Vitamin D Deficiency
    Internal Medicine

    Preferred Professional Medical Care PC

    3505 Veterans Memorial Hwy Ste C, 
    Ronkonkoma, NY 
     (0.7 miles away)
    Languages Spoken:
    English

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

    Advanced in Vitamin D Deficiency
    Family Medicine
    Advanced in Vitamin D Deficiency
    Family Medicine

    Asnis Dental PLLC

    217 Portion Rd, 
    Lk Ronkonkoma, NY 
     (0.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Robin Dacosta is a primary care provider, practicing in Family Medicine in Lk Ronkonkoma, New York. Dr. Dacosta is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Blood Clots, Vitamin D Deficiency, Anemia, and Hirsutism in Women.

    Advanced in Vitamin D Deficiency
    Nurse Practitioner
    Advanced in Vitamin D Deficiency
    Nurse Practitioner

    Ismail Ozcan MD PC

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

    Turkan Ozcan is a Nurse Practitioner practicing medicine in Ronkonkoma, New York. Ms. Ozcan is rated as an Advanced provider by MediFind in the treatment of Vitamin D 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).

    Showing 1-20 of 448

    Last Updated: 04/28/2026

    What is the definition of Vitamin D Deficiency?

    Vitamin D deficiency is when the body does not have enough vitamin D. Vitamin D is necessary for absorbing calcium and healthy bones.

    When should I see a Vitamin D Deficiency doctor near Ronkonkoma, 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 D Deficiency doctor near Ronkonkoma, 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 D Deficiency doctors near Ronkonkoma, 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 D Deficiency doctors near Ronkonkoma, 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 D Deficiency doctor near Ronkonkoma, 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 D Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Vitamin D 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 D Deficiency doctor near Ronkonkoma, 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 D 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 D 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 D Deficiency doctors near Ronkonkoma, NY?

    Look for the filter feature on the left side of the Vitamin D 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 D Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Vitamin D 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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