The 20 Best Vitamin D Deficiency Doctors Near Me in O Fallon, IL

Find the Top Vitamin D Deficiency Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 73 doctor with experience in Vitamin D Deficiency near O Fallon, IL. Of these, 69 are Experienced, 3 are Advanced and 1 are Distinguished.

Location
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73 providers found
    Experienced in Vitamin D Deficiency
    Internal Medicine
    Experienced in Vitamin D Deficiency
    Internal Medicine

    SSM Health Medical Group

    604 Pierce Blvd., Suite 150, 
    O Fallon, IL 
     (1.2 miles away)
    Languages Spoken:
    English

    Dr. Janas-Kaminsky is board certified in internal medicine and received her medical degree from the Medical Academy in Warsaw, Poland. She then completed an internship at the Medical Academy, which was followed by a residency at Danbury Hospital/Yale University School of Medicine in Danbury, Connecticut. Dr. Janas-Kaminsky treats patients 18 years of age and older. Dr. Janas is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Type 2 Diabetes (T2D). Dr. Janas is board certified in American Board Of Internal Medicine , Drug Enforcement Administration , Illinois Department Of Financial & Professional Regulation , and Missouri State Board Of Registration.

    Advanced in Vitamin D Deficiency
    Internal Medicine
    Advanced in Vitamin D Deficiency
    Internal Medicine
    4000 N Illinois Ln, 
    Swansea, IL 
     (4.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Keith Moss is a primary care provider, practicing in Internal Medicine in Swansea, Illinois. Dr. Moss is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Benign Paroxysmal Positional Vertigo, Familial Combined Hyperlipidemia, Diverticular Disease, and Coronary Heart Disease. Dr. Moss is currently accepting new patients.

    Distinguished in Vitamin D Deficiency
    Obstetrics and Gynecology
    Distinguished in Vitamin D Deficiency
    Obstetrics and Gynecology
    2023 Vadalabene Drive, Suite 200, 
    Maryville, IL 
     (10.0 miles away)
    Languages Spoken:
    English

    Christina Midkiff is an Obstetrics and Gynecologist practicing medicine in Maryville, Illinois. Dr. Midkiff is rated as a Distinguished provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Vitamin D Deficiency, Vaginal Cysts, Vaginal Dryness, Rectocele, and Salpingo-Oophorectomy. Dr. Midkiff is board certified in American Board Of Obstetrics & Gynecology , Drug Enforcement Administration , Illinois Department Of Financial & Professional Regulation , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.

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

    St Elizabeths Hospital Of The Hospital Sisters Of The Third Order

    1512 N Green Mount Rd Ste 108, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English

    Gregory Climaco is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Climaco is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Chronic Kidney Disease, Apo A-I Deficiency, Abetalipoproteinemia, and Chorea-Acanthocytosis.

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

    English And McLaughlin PC

    1167 Fortune Blvd, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English

    Laura Crandall is a primary care provider, practicing in Internal Medicine in O Fallon, Illinois. Dr. Crandall 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 Gardner-Diamond Syndrome, Purpura, Autoerythrocyte Sensitivity, and Hypertensive Heart Disease.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    St Elizabeths Hospital Of The Hospital Sisters Of The Third Order

    1512 N Green Mount Rd Ste 108, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English

    Nellann Hennon is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Hennon is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), High Potassium Level, and Acute Cystitis.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    BJC Medical Group Family Medicine At O'Fallon

    310 N 7 Hills Rd Ste 220, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English

    Robert Dizes is a Family Medicine provider practicing medicine in O Fallon, Illinois. Dr. Dizes is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His clinical expertise encompasses Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Muscle Spasms, Vitamin D Deficiency, and Gallbladder Disease.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency

    Office

    321 Regency Park, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English

    Justin Floyd is an Oncologist practicing medicine in O Fallon, Illinois. Dr. Floyd is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 42 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Pleuropulmonary Blastoma, Small Cell Lung Cancer (SCLC), and Colorectal Cancer.

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

    Office

    1418 Cross St Ste 250, 
    O Fallon, IL 
     (0.6 miles away)
    Languages Spoken:
    English

    Beatriz Ramos is a primary care provider, practicing in Internal Medicine in O Fallon, Illinois. Dr. Ramos is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Hypothyroidism, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

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

    B J C Primary Care Shiloh 250

    1418 Cross St Ste 250, 
    O Fallon, IL 
     (0.6 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English

    Jennifer Neville is a primary care provider, practicing in Internal Medicine in O Fallon, Illinois. She has been practicing medicine for over 17 years. Dr. Neville is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Nephrosclerosis, Renovascular Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    Kevin L Pritchett M.D PC

    100 Springfield Ct, 
    O Fallon, IL 
     (0.9 miles away)
    Languages Spoken:
    English

    Kevin Pritchett is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Pritchett is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Urinary Tract Infection in Children, Urinary Tract Infection (UTI), Pulmonary Embolism, and Kidney Stones.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    Oa Associates LLC

    310 N 7 Hills Rd, 
    O Fallon, IL 
     (1.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Scott Morrison is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Morrison is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His clinical expertise encompasses Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Type 2 Diabetes (T2D).

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    Oa Associates LLC

    310 N 7 Hills Rd, 
    O Fallon, IL 
     (1.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Jennifer Szalkowski is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Szalkowski is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her clinical expertise encompasses Type 2 Diabetes (T2D), Hypervitaminosis D, Chronic Cough, and Vertigo.

    Experienced in Vitamin D Deficiency
    Family Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine

    PC Associates LLC

    1414 Cross St Ste 230, 
    O Fallon, IL 
     (1.4 miles away)
    Languages Spoken:
    English

    Robert Garner is a primary care provider, practicing in Family Medicine in O Fallon, Illinois. Dr. Garner 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 Hypothyroidism, Obesity in Children, Type 2 Diabetes (T2D), and Glucocorticoid-Remediable Aldosteronism.

    Experienced in Vitamin D Deficiency
    Geriatrics | Rheumatology | Internal Medicine
    Experienced in Vitamin D Deficiency
    Geriatrics | Rheumatology | Internal Medicine
    5003 N. Illinois St., Suite 1, 
    Fairview Heights, IL 
     (4.2 miles away)
    Languages Spoken:
    English

    Saulat Mushtaq is an Internal Medicine specialist and a Geriatrics provider practicing medicine in Fairview Heights, Illinois. Dr. Mushtaq is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Undifferentiated Connective Tissue Disease (UCTD), Polymyalgia Rheumatica, and Rhizomelic Pseudopolyarthritis. Dr. Mushtaq is board certified in American Board Of Internal Medicine/Rheumatology , Drug Enforcement Administration , Illinois Department Of Financial & Professional Regulation , Missouri Dept Of Health/Narcotics&Dangerous Drugs , and Missouri State Board Of Registration.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency

    CA Group LLC

    4600 Memorial Dr, 
    Belleville,, IL 
     (6.7 miles away)
    Languages Spoken:
    English

    Mohammad Vakassi is a Cardiologist practicing medicine in Belleville,, Illinois. Dr. Vakassi is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Inappropriate Sinus Tachycardia (IST), Familial Ventricular Tachycardia, Atrial Fibrillation, and Heart Attack.

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

    Office

    2090 Vadalabene Dr, 
    Maryville, IL 
     (10.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Eddie Paulk is a primary care provider, practicing in Internal Medicine in Maryville, Illinois. Dr. Paulk is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Hypothyroidism, Obesity in Children, and Cirrhosis. Dr. Paulk is currently accepting new patients.

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

    Office

    331 Salem Pl Ste 100, 
    Fairview Heights, IL 
     (5.1 miles away)
    Languages Spoken:
    English

    Mounir Shenouda is a primary care provider, practicing in Internal Medicine in Fairview Heights, Illinois. Dr. Shenouda is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Anemia, Breast Cancer, Hypertension, and Familial Hypertension.

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

    Goldenberg & Associates

    5003 N Illinois St # 2, 
    Fairview Heights, IL 
     (5.1 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Shabbir Shaikh is an Internal Medicine provider practicing medicine in Fairview Heights, Illinois. Dr. Shaikh 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 Bronchitis, Chronic Obstructive Pulmonary Disease (COPD), Hospital-Acquired Pneumonia, Gastrostomy, and Endoscopy.

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

    Office

    331 Salem Pl Ste 100, 
    Fairview Heights, IL 
     (5.1 miles away)
    Languages Spoken:
    English

    Philip Chu is a primary care provider, practicing in Internal Medicine in Fairview Heights, Illinois. Dr. Chu 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 Anemia, Familial Hypertension, Hypertension, and Glucocorticoid-Remediable Aldosteronism.

    Showing 1-20 of 73

    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 O Fallon, IL?

    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 O Fallon, IL?

    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 O Fallon, IL?

    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 O Fallon, IL?

    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 O Fallon, IL?

    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 O Fallon, IL?

    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 O Fallon, IL?

    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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