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    Last Updated: 10/30/2025

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    MediFind found 390 doctor with experience in Vitamin D Deficiency near Lake Ronkonkoma, NY. Of these, 326 are Experienced, 54 are Advanced and 9 are Distinguished.

    Location
    LocationClose
    390 providers found
      Distinguished in Vitamin D Deficiency
      Family Medicine | Emergency Medicine
      Distinguished in Vitamin D Deficiency
      Family Medicine | Emergency Medicine

      Ismail Ozcan MD PC

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

      Ismail Ozcan is an Emergency Medicine provider in Lake Ronkonkoma, New York. Dr. Ozcan is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin D Deficiency, Vitamin B12 Deficiency, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), and Folliculitis.

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

      E.Lila Augoustiniatos MD PC

      100 Terry Rd, 
      Smithtown, NY 
       (3.7 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. Her top areas of expertise are Vitamin D Deficiency, Obesity in Children, Folate-Deficiency Anemia, and Hypothyroidism.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Kristen A. O'brien
      Advanced in Vitamin D Deficiency
      Family Medicine
      Advanced in Vitamin D Deficiency
      Family Medicine

      Mather Primary Care At East Setauket

      3 Technology Drive, Suite 100, 
      East Setauket, NY 
       (4.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Kristen O'brien is a primary care provider, practicing in Family Medicine in East Setauket, New York. Dr. O'brien is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are High Cholesterol, Vitamin D Deficiency, Infant Hyperglycemia, and Vitamin B12 Deficiency Anemia.

      Learn about our expert tiers
      Advanced in Vitamin D Deficiency
      Nurse Practitioner
      Advanced in Vitamin D Deficiency
      Nurse Practitioner
      122 Portion Rd, 
      Ronkonkoma, NY 
       (0.5 miles away)
      Languages Spoken:
      English

      Turkan Ozcan is a Nurse Practitioner in Ronkonkoma, New York. Ms. Ozcan is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Vitamin D Deficiency, Vitamin B12 Deficiency, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

      Advanced in Vitamin D Deficiency
      Internal Medicine
      Advanced in Vitamin D Deficiency
      Internal Medicine
      203 Union Ave, 
      Holbrook, NY 
       (1.7 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 D Deficiency. His top areas of expertise are Familial Combined Hyperlipidemia, Xanthoma, Cirrhosis, and High Cholesterol.

      Advanced in Vitamin D Deficiency
      Hospital Medicine
      Advanced in Vitamin D Deficiency
      Hospital Medicine
      59 Southern Boulevard, 
      Nesconset, NY 
       (2.2 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. Her top areas of expertise are Subacute Combined Degeneration, Vitamin B12 Deficiency Anemia, Multiple Carboxylase Deficiency, 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, Suite C, 
      Ronkonkoma, NY 
       (3.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      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. His top areas of expertise are Swallowing Difficulty, Painful Swallowing, Anemia, and Muscle Atrophy.

      Advanced in Vitamin D Deficiency
      Gastroenterology
      Advanced in Vitamin D Deficiency
      Gastroenterology
      59 Southern Blvd, 
      Nesconset, NY 
       (3.2 miles away)
      Languages Spoken:
      English

      Augustus Mantia is a Gastroenterologist in Nesconset, New York. Dr. Mantia is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Hemorrhoids, Vitamin D Deficiency, Vitamin B12 Deficiency, Ureteroscopy, and Endoscopy.

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

      North Shore Medical Group Of The Mount Sinai School Of Medicine

      59 Southern Blvd, 
      Nesconset, NY 
       (3.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Glenn Rosett is a primary care provider, practicing in Internal Medicine in Nesconset, New York. Dr. Rosett is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Sitosterolemia, Bronchitis, High Cholesterol, and Familial Hypertension.

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

      North Shore Medical Group Of The Mount Sinai School Of Medicine

      59 Southern Blvd, 
      Nesconset, NY 
       (3.2 miles away)
      Experience:
      44+ years
      Languages Spoken:
      English

      Andrew Radzik is a primary care provider, practicing in Internal Medicine in Nesconset, New York. Dr. Radzik has been practicing medicine for over 44 years and is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Low Sodium Level.

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

      North Shore Medical Group Of The Mount Sinai School Of Medicine

      59 Southern Blvd, 
      Nesconset, NY 
       (3.2 miles away)
      Languages Spoken:
      English

      Barbara Stumacher is a primary care provider, practicing in Internal Medicine in Nesconset, New York. Dr. Stumacher is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Sitosterolemia, Congenital Sucrase-Isomaltase Deficiency, Glucose-Galactose Malabsorption Deficiency, and Glucose Phosphate Isomerase Deficiency.

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

      Endocrine Associates Of Long Island, PC

      732 Smithtown Byp, Suite 103, 
      Smithtown, NY 
       (3.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      David Kugler is an Endocrinologist in Smithtown, New York. Dr. Kugler is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Hashimoto Thyroiditis, Type 2 Diabetes (T2D), Vitamin B12 Deficiency, and Milk-Alkali Syndrome.

      Advanced in Vitamin D Deficiency
      Geriatrics | Internal Medicine
      Advanced in Vitamin D Deficiency
      Geriatrics | Internal Medicine

      North Shore Hematology Oncology Associates PC

      2500 Nesconset Hwy, Bldg 14a, 
      Stony Brook, NY 
       (3.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Charles Bleecher is a primary care provider, practicing in Geriatrics and Internal Medicine in Stony Brook, New York. Dr. Bleecher is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin D Deficiency, High Cholesterol, Blood Clots, and Malabsorption.

      Advanced in Vitamin D Deficiency
      Family Medicine
      Advanced in Vitamin D Deficiency
      Family Medicine
      2500 Nesconset Hwy, Bldg 12c, 
      Stony Brook, NY 
       (3.4 miles away)
      Experience:
      44+ years
      Languages Spoken:
      English

      Fangqin Li is a primary care provider, practicing in Family Medicine in Stony Brook, New York. Dr. Li has been practicing medicine for over 44 years and is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Cluster Headache, Otitis Media with Effusion, High Cholesterol, and Vitamin D Deficiency.

      Jessica L. Blydenburgh
      Experienced in Vitamin D Deficiency
      Experienced in Vitamin D Deficiency

      Mather Primary Care At Stony Brook

      2500 Nesconset Highway, Bldg 2, 
      Stony Brook, NY 
       (3.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Jessica Blydenburgh is a primary care provider, practicing in Family Medicine in Stony Brook, New York. Dr. Blydenburgh is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and High Cholesterol.

      Ekambaram Ilamathi
      Experienced in Vitamin D Deficiency
      Experienced in Vitamin D Deficiency
      2500 Nesconset Highway, Building 7, 
      Stony Brook, NY 
       (3.4 miles away)
      Languages Spoken:
      English, Tamil
      Offers Telehealth

      Ekambaram Ilamathi is a Nephrologist in Stony Brook, New York. Dr. Ilamathi is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Acute Kidney Failure, Chronic Kidney Disease, End-Stage Renal Disease (ESRD), and Acute Tubular Necrosis.

      Advanced in Vitamin D Deficiency
      Family Medicine | Pain Medicine
      Advanced in Vitamin D Deficiency
      Family Medicine | Pain Medicine
      649 Horseblock Rd, 
      Farmingville, NY 
       (3.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Bashir Ahmed is a Pain Medicine provider in Farmingville, New York. Dr. Ahmed is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin D Deficiency, Generalized Pustular Psoriasis (GPP), Muscle Spasms, and Opisthotonos.

      Peter-john J. Ruiz
      Experienced in Vitamin D Deficiency
      Physician Assistant
      Experienced in Vitamin D Deficiency
      Physician Assistant

      Northwell Health Physician Partners Medicine At Islandia

      3001 Expressway Drive North, Suite 102, 
      Islandia, NY 
       (3.8 miles away)
      Languages Spoken:
      English, Spanish

      Peter-john Ruiz is a Physician Assistant in Islandia, New York. Mr. Ruiz is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Vitamin D Deficiency, Muscle Spasms, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

      Taranjit Arneja
      Experienced in Vitamin D Deficiency
      Family Medicine
      Experienced in Vitamin D Deficiency
      Family Medicine

      Northwell Health Physician Partners Medicine At Islandia

      3001 Expressway Drive North, Suite 102, 
      Islandia, NY 
       (3.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Taranjit Arneja is a primary care provider, practicing in Family Medicine in Islandia, New York. Dr. Arneja is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are High Cholesterol, Vitamin D Deficiency, Hemolytic Anemia, and Hemolytic Crisis.

      Sujata M. Kumbar
      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 
       (3.8 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Sujata Kumbar is an Endocrinologist in Islandia, New York. Dr. Kumbar is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Type 2 Diabetes (T2D), Obesity in Children, Thyroid Nodule, and Hypothyroidism.

      Showing 1-20 of 390

      Last Updated: 10/30/2025

      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 Lake 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 Lake 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 Lake 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 Lake 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 Lake 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 Lake 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 Lake 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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