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    Last Updated: 10/30/2025

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    MediFind found 11 doctor with experience in Secondary Immunodeficiency (SID) near Sioux Falls, SD. Of these, 9 are Experienced and 2 are Advanced.

    Location
    LocationClose
    11 providers found
      Randall S. Fenner
      Experienced in Secondary Immunodeficiency (SID)
      Endocrinology
      Experienced in Secondary Immunodeficiency (SID)
      Endocrinology

      Sanford Medical Center

      1305 W 18 St, 
      Sioux Falls, SD 
       (0.9 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Randall Fenner is an Endocrinologist in Sioux Falls, South Dakota. Dr. Fenner is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Hyperparathyroidism, Parathyroid Hyperplasia, Familial Isolated Hyperparathyroidism, and Type 2 Diabetes (T2D).

      Advanced in Secondary Immunodeficiency (SID)
      Pulmonary Medicine | Intensive Care Medicine | Sleep Medicine
      Advanced in Secondary Immunodeficiency (SID)
      Pulmonary Medicine | Intensive Care Medicine | Sleep Medicine
      1205 S Grange Ave Ste 407, 
      Sioux Falls, SD 
       (1.8 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Ross Bacon is a Pulmonary Medicine specialist and an Intensive Care Medicine provider in Sioux Falls, South Dakota. Dr. Bacon is rated as an Advanced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Lung Metastases, Chronic Obstructive Pulmonary Disease (COPD), Interstitial Lung Disease, and Acute Interstitial Pneumonia. Dr. Bacon is currently accepting new patients.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Secondary Immunodeficiency (SID)
      Nurse Practitioner
      Advanced in Secondary Immunodeficiency (SID)
      Nurse Practitioner

      Sanford Medical Center

      4405 E 26th St, 
      Sioux Falls, SD 
       (3.1 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Nancy Foss is a Nurse Practitioner in Sioux Falls, South Dakota. Ms. Foss is rated as an Advanced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). Her top areas of expertise are Secondary Immunodeficiency (SID), Emphysema, Lung Nodules, and Pulmonary Fibrosis. Ms. Foss is currently accepting new patients.

      Learn about our expert tiers
      Experienced in Secondary Immunodeficiency (SID)
      Pulmonary Medicine
      Experienced in Secondary Immunodeficiency (SID)
      Pulmonary Medicine

      Sanford Medical Center

      1301 W 18th St, 
      Sioux Falls, SD 
       (0.9 miles away)
      Experience:
      17+ years
      Languages Spoken:
      English
      Accepting New Patients

      Paul Berger is a Pulmonary Medicine provider in Sioux Falls, South Dakota. Dr. Berger has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Lymphofollicular Hyperplasia, Lung Nodules, Lung Metastases, Advanced Bronchoscopy, and Gastrostomy. Dr. Berger is currently accepting new patients.

      Experienced in Secondary Immunodeficiency (SID)
      Endocrinology
      Experienced in Secondary Immunodeficiency (SID)
      Endocrinology

      Sanford Clinic

      1301 W 18th St, 
      Sioux Falls, SD 
       (0.9 miles away)
      Languages Spoken:
      English

      Brandon Allard is an Endocrinologist in Sioux Falls, South Dakota. Dr. Allard is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Thyroid Cancer, Anaplastic Thyroid Cancer, Hyperparathyroidism, and Hypothyroidism.

      Experienced in Secondary Immunodeficiency (SID)
      Pulmonary Medicine | Intensive Care Medicine
      Experienced in Secondary Immunodeficiency (SID)
      Pulmonary Medicine | Intensive Care Medicine
      1205 S Grange Ave, Ste 407, 
      Sioux Falls, SD 
       (0.9 miles away)
      Languages Spoken:
      English

      David Thomas is a Pulmonary Medicine specialist and an Intensive Care Medicine provider in Sioux Falls, South Dakota. Dr. Thomas is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Bronchiectasis, Lung Metastases, Bronchiolitis Obliterans, and Chronic Obstructive Pulmonary Disease (COPD).

      Experienced in Secondary Immunodeficiency (SID)
      Internal Medicine
      Experienced in Secondary Immunodeficiency (SID)
      Internal Medicine

      Sanford Clinic

      1321 W 22nd St, 
      Sioux Falls, SD 
       (1.1 miles away)
      Experience:
      16+ years
      Languages Spoken:
      English

      Sara Ruter is a primary care provider, practicing in Internal Medicine in Sioux Falls, South Dakota. Dr. Ruter has been practicing medicine for over 16 years and is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). Her top areas of expertise are Hypertension, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Type 1 Diabetes (T1D), and Tissue Biopsy.

      Experienced in Secondary Immunodeficiency (SID)
      Pediatric Pulmonology | Pediatrics | Pulmonary Medicine
      Experienced in Secondary Immunodeficiency (SID)
      Pediatric Pulmonology | Pediatrics | Pulmonary Medicine
      1600 W 22nd St, 
      Sioux Falls, SD 
       (1.1 miles away)
      Languages Spoken:
      English, Spanish
      Accepting New Patients

      Santiago Encalada is a Pediatric Pulmonologist and a Pediatrics provider in Sioux Falls, South Dakota. Dr. Encalada is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Cystic Fibrosis, Empyema, Secondary Immunodeficiency (SID), and Newborn Jaundice. Dr. Encalada is currently accepting new patients.

      Experienced in Secondary Immunodeficiency (SID)
      Pediatric Pulmonology | Pediatrics
      Experienced in Secondary Immunodeficiency (SID)
      Pediatric Pulmonology | Pediatrics
      1600 W 22nd St, 
      Sioux Falls, SD 
       (1.1 miles away)
      Languages Spoken:
      English, Mandarin, Thai
      Accepting New Patients

      Chuanpit Moser is a Pediatric Pulmonologist and a Pediatrics provider in Sioux Falls, South Dakota. Dr. Moser is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). Her top areas of expertise are Secondary Immunodeficiency (SID), Newborn Jaundice, Cystic Fibrosis, and Congenital Central Hypoventilation Syndrome. Dr. Moser is currently accepting new patients.

      Experienced in Secondary Immunodeficiency (SID)
      Pediatric Pulmonology | Pediatrics
      Experienced in Secondary Immunodeficiency (SID)
      Pediatric Pulmonology | Pediatrics
      1600 W 22nd St, 
      Sioux Falls, SD 
       (1.1 miles away)
      Languages Spoken:
      English, Hindi, Punjabi
      Accepting New Patients

      Amit Jain is a Pediatric Pulmonologist and a Pediatrics provider in Sioux Falls, South Dakota. Dr. Jain is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Asthma in Children, Asthma, Cystic Fibrosis, and Secondary Immunodeficiency (SID). Dr. Jain is currently accepting new patients.

      Experienced in Secondary Immunodeficiency (SID)
      Nurse Practitioner
      Experienced in Secondary Immunodeficiency (SID)
      Nurse Practitioner

      Sanford Medical Center

      4405 E 26th St, 
      Sioux Falls, SD 
       (3.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Aaron Stoick is a Nurse Practitioner in Sioux Falls, South Dakota. Mr. Stoick is rated as an Experienced provider by MediFind in the treatment of Secondary Immunodeficiency (SID). His top areas of expertise are Secondary Immunodeficiency (SID) and Hypoparathyroidism.

      Showing 1-11 of 11

      Last Updated: 10/30/2025

      When should I see a Secondary Immunodeficiency (SID) doctor near Sioux Falls, SD?

      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 Secondary Immunodeficiency (SID) doctor near Sioux Falls, SD?

      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 Secondary Immunodeficiency (SID) doctors near Sioux Falls, SD?

      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 Secondary Immunodeficiency (SID) doctors near Sioux Falls, SD?

      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 Secondary Immunodeficiency (SID) doctor near Sioux Falls, SD?

      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 Secondary Immunodeficiency (SID) doctor search results page. 

      Why is it important to get a second opinion from a different Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) doctor near Sioux Falls, SD?

      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 Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) doctors near Sioux Falls, SD?

      Look for the filter feature on the left side of the Secondary Immunodeficiency (SID) 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 Secondary Immunodeficiency (SID) doctor that offers video calls?

      Look for the filter feature on the left-side of the Secondary Immunodeficiency (SID) 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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