The 20 Best Vitamin B12 Deficiency Doctors Near Me in Naperville, IL

Find the Top Vitamin B12 Deficiency Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 84 doctor with experience in Vitamin B12 Deficiency near Naperville, IL. Of these, 77 are Experienced and 7 are Advanced.

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84 providers found
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology

    Advocate Good Samaritan Cancer Center

    3745 Highland Ave 2nd Fl, 
    Downers Grove, IL 
     (7.9 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Suchin Khanna is a Hematologist and an Oncologist practicing medicine in Downers Grove, Illinois. Dr. Khanna is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Pleuropulmonary Blastoma, and Childhood Iron Deficiency Anemia. Dr. Khanna is board certified in American Board Of Internal Medicine, Hematology.

    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology

    Endeavor Health Medical Group

    120 Spalding Dr., Suite 111, 
    Naperville, IL 
     (0.7 miles away)
    Languages Spoken:
    English, Arabic

    Rand Naddouje, MD, a hematologist and medical oncologist at Endeavor Health, provides personalized care for patients with cancer and blood disorders. She uses the most current treatments and innovations in oncology to support each individual’s care journey. Dr. Naddouje approaches every patient with compassion and strives to deliver care the way she would want it delivered to herself or a loved one. Dr. Naffouje 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 Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Paget Disease of the Breast, and Breast Cancer. Dr. Naffouje is board certified in American Board Of Internal Medicine.

    Experienced in Vitamin B12 Deficiency
    Oncology | Hematology
    Experienced in Vitamin B12 Deficiency
    Oncology | Hematology

    Endeavor Health Medical Group

    120 Spalding Dr., Suite 111, 
    Naperville, IL 
     (0.7 miles away)
    Languages Spoken:
    English, Filipino, Spanish

    Maria Quejada, MD, a medical oncologist and hematologist at Endeavor Health, specializes in developing personalized treatment plans to help patients navigate their cancer journey. Her approach blends evidence-based medicine with compassion, collaboration and a strong emphasis on patient-centered care. Dr. Quejada is particularly interested in precision medicine and targeted therapies that tailor treatments to each patient’s unique tumor profile. Dr. Quejada is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. She is also highly rated in 24 other conditions, according to our data. Her clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Pleuropulmonary Blastoma, and Small Cell Lung Cancer (SCLC). Dr. Quejada is board certified in American Board Of Internal Medicine.

    Learn about our expert tiers
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology

    Endeavor Health Medical Group

    120 Spalding Dr., Suite 111, 
    Naperville, IL 
     (0.7 miles away)
    Languages Spoken:
    English

    William R. Broderick, MD, a hematology and oncology specialist at Endeavor Health, cares for patients with a wide range of cancer and blood-related conditions. His clinical expertise includes neuro-oncology, hematologic disorders and general oncology. Dr. Broderick provides evidence-based care grounded in strong patient relationships, helping individuals navigate their diagnosis and treatment with clarity and compassion. Dr. Broderick is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 40 other conditions, according to our data. His clinical expertise encompasses Gliosarcoma, Astrocytoma, Familial Colorectal Cancer, Embryonal Tumor with Multilayered Rosettes, and Bone Marrow Aspiration. Dr. Broderick is board certified in American Board Of Internal Medicine.

    Experienced in Vitamin B12 Deficiency
    Sports Medicine | Family Medicine
    Experienced in Vitamin B12 Deficiency
    Sports Medicine | Family Medicine

    Lawrence T Kacmar, MD SC

    3965 75th St., Suite 103, 
    Aurora, IL 
     (3.3 miles away)
    Languages Spoken:
    English

    Lawrence Kacmar is a Sports Medicine specialist and a Family Medicine provider practicing medicine in Aurora, Illinois. Dr. Kacmar is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Lysosomal Acid Lipase Deficiency, Tendinitis, Bursitis, Vitamin B12 Deficiency, and Pacemaker Implantation. Dr. Kacmar is board certified in American Board Of Family Medicine.

    Experienced in Vitamin B12 Deficiency
    Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Internal Medicine
    5207 Main Street, 
    Downers Grove, IL 
     (8.0 miles away)
    Experience:
    21+ years
    Languages Spoken:
    English
    Offers Telehealth

    Good health is often key to living life to the fullest. We all deserve a life of vitality and I am a firm believer that we can achieve this together. This is why I enjoy doing primary care and place an importance on preventive care. I also am dedicated to managing chronic diseases and try to empower patients to take control of their disease process. It's definitely a partnership between patient and physician. Dr. Kurian is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her clinical expertise encompasses Subacute Combined Degeneration, Glossitis, Pernicious Anemia, and Multiple Carboxylase Deficiency. Dr. Kurian is board certified in Internal Medicine.

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

    Arun Kumar, MD, SC

    931 W 75th St, 
    Naperville, IL 
     (0.6 miles away)
    Languages Spoken:
    English, Hindi, Tamil

    Arun Kumar is a primary care provider, practicing in Internal Medicine in Naperville, Illinois. Dr. Kumar is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Vitamin B12 Deficiency, Empyema, Vitamin D Deficiency, Gastrostomy, and Hernia Surgery. Dr. Kumar is board certified in American Board Of Internal Medicine.

    Advanced in Vitamin B12 Deficiency
    Internal Medicine | Bariatric Medicine
    Advanced in Vitamin B12 Deficiency
    Internal Medicine | Bariatric Medicine

    Rakesh Marwaha, MD, SC

    1190 S. Naper Blvd, 
    Naperville, IL 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rakesh Marwaha is a primary care provider, practicing in Internal Medicine and Bariatric Medicine in Naperville, Illinois. Dr. Marwaha is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Familial Combined Hyperlipidemia, Xanthoma, and Cirrhosis. Dr. Marwaha is board certified in American Board Of Internal Medicine and American Board Of Obesity Medicine.

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

    Hobson Meadows Family Medicine

    1888 Bay Scott Cir, 
    Naperville, IL 
     (1.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Robert Rozner is a primary care provider, practicing in Family Medicine in Naperville, Illinois. Dr. Rozner is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 28 other conditions, according to our data. His clinical expertise encompasses Childhood Iron Deficiency Anemia, Lung Metastases, Sitosterolemia, and High Cholesterol. Dr. Rozner is board certified in American Board Of Family Medicine.

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

    Premier Internists Of Naperville, Inc.

    620 N. River Rd, Suite 102, 
    Naperville, IL 
     (2.5 miles away)
    Languages Spoken:
    English, Hindi, Malayalam
    Offers Telehealth

    Cicily Jones is a primary care provider, practicing in Internal Medicine in Naperville, Illinois. Dr. Jones 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 Lung Metastases, Dementia, Familial Hypertension, and Hypertension. Dr. Jones is board certified in American Board Of Internal Medicine.

    Experienced in Vitamin B12 Deficiency
    Oncology | Hematology
    Experienced in Vitamin B12 Deficiency
    Oncology | Hematology
    430 Warrenville Road, Suite 200, 
    Lisle, IL 
     (6.3 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    I believe in an individualistic approach to a diagnosis of cancer with a customized care plan that both reaches the goals of patient and family. I believe in providing the best evidence based medicine tailored to patient’s needs. I prefer developing a relationship with patients and their families to best provide an individualized approach to medicine. Dr. Wan is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Inflammatory Breast Cancer, Angiosarcoma, Familial Pancreatic Cancer, and Familial Colorectal Cancer. Dr. Wan is board certified in Internal Medicine and Oncology.

    Experienced in Vitamin B12 Deficiency
    Experienced in Vitamin B12 Deficiency
    430 Warrenville Road, Suite 200, 
    Lisle, IL 
     (6.3 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English

    My goal is to apply the latest in cancer medicine and research to help each patient achieve the best possible outcome. Dr. Myre is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 54 other conditions, according to our data. His clinical expertise encompasses Small Cell Lung Cancer (SCLC), Lung Adenocarcinoma, EGFR Positive Lung Cancer, ALK-Positive Non-Small Cell Lung Cancer, and Orchiectomy. Dr. Myre is board certified in Hematology and Oncology.

    Experienced in Vitamin B12 Deficiency
    Experienced in Vitamin B12 Deficiency

    NANI Internal Med ACO, LLC

    412 63rd St, 
    Downers Grove, IL 
     (8.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Gerald Simon is a primary care provider, practicing in Geriatrics in Downers Grove, Illinois. Dr. Simon is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 55 other conditions, according to our data. His clinical expertise encompasses Stroke, Urinary Tract Infection in Children, Urinary Tract Infection (UTI), Vertebroplasty, and Bone Graft. Dr. Simon is board certified in American Board Of Internal Medicine, Geriatric Medicine.

    Experienced in Vitamin B12 Deficiency
    Hematology
    Experienced in Vitamin B12 Deficiency
    Hematology

    Hematology-Oncology Consultants LTD.

    100 Spalding Dr Ste 110, 
    Naperville, IL 
     (1.0 miles away)
    Languages Spoken:
    English

    Dennis Azuma is a Hematologist practicing medicine in Naperville, Illinois. Dr. Azuma is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Paget Disease of the Breast, Myelodysplastic Syndrome (MDS), Autoimmune Hemolytic Anemia, and Bone Marrow Aspiration.

    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology

    Edward Hospital Cancer Center-Napervil

    120 Spalding Dr Ste 111, 
    Naperville, IL 
     (1.0 miles away)
    Languages Spoken:
    English

    Joseph Kash is a Hematologist and an Oncologist practicing medicine in Naperville, Illinois. Dr. Kash is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Angiosarcoma, Inflammatory Breast Cancer, and Bone Marrow Aspiration.

    Experienced in Vitamin B12 Deficiency
    Internal Medicine
    Experienced in Vitamin B12 Deficiency
    Internal Medicine
    640 S Washington St, 268, 
    Naperville, IL 
     (1.1 miles away)
    Languages Spoken:
    English

    James Collins is a primary care provider, practicing in Internal Medicine in Naperville, Illinois. Dr. Collins is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His clinical expertise encompasses Type 2 Diabetes (T2D), Ulcerative Colitis, Glossitis, and Pernicious Anemia.

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

    Rakesh Marwaha, MD, SC

    1190 S Naper Blvd, 
    Naperville, IL 
     (2.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Rachit Marwaha is a primary care provider, practicing in Internal Medicine in Naperville, Illinois. Dr. Marwaha 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 Hypertensive Heart Disease, Familial Combined Hyperlipidemia, Xanthoma, and Cirrhosis. Dr. Marwaha is board certified in American Board Of Internal Medicine.

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

    Rakesh Marwaha, MD, SC

    1190 S Naper Blvd, 
    Naperville, IL 
     (2.0 miles away)
    Languages Spoken:
    English

    Sandeep Kalra is a primary care provider, practicing in Internal Medicine in Naperville, Illinois. Dr. Kalra is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 68 other conditions, according to our data. His clinical expertise encompasses Anemia, Urinary Tract Infection in Children, Acute Kidney Failure, Gastrostomy, and Endoscopy. Dr. Kalra is board certified in American Board Of Internal Medicine.

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

    Aurora Internal Medicine LTD

    2020 Ogden Ave Ste 400, 
    Aurora, IL 
     (4.4 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Philip Moore is a primary care provider, practicing in Internal Medicine in Aurora, Illinois. Dr. Moore is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Myelodysplastic Syndrome (MDS), Hospital-Acquired Pneumonia, Atypical Pneumonia, Hip Replacement, and Endoscopy.

    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology
    Experienced in Vitamin B12 Deficiency
    Hematology | Oncology

    Office

    430 Warrenville Rd Ste 300, 
    Lisle, IL 
     (4.5 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Janet Chin is a Hematologist and an Oncologist practicing medicine in Lisle, Illinois. Dr. Chin is rated as an Experienced 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 Leukocytosis, Anemia, Thrombocytopenia, and Small Lymphocytic Lymphoma (SLL).

    Showing 1-20 of 84

    Last Updated: 04/28/2026

    When should I see a Vitamin B12 Deficiency doctor near Naperville, 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 B12 Deficiency doctor near Naperville, 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 B12 Deficiency doctors near Naperville, 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 B12 Deficiency doctors near Naperville, 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 B12 Deficiency doctor near Naperville, 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 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 Naperville, 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 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 Naperville, IL?

    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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