Welcome to Ferrell Duncan Clinic-- Allergy/ Immunology
1001 E. Primrose, Springfield, MO 65807
417-875-3742 phone/ 417-875-2905 fax

Who We Are

Ferrell-Duncan Clinic-- Allergy/Immunology is a clinic located within a multisubspecialty clinic of over 100 private physicians in Springfield, Missouri.  Together, we see patients throughout the Southwest Missouri/Northwest Arkansas corridor.  Currently, we have three allergists/immunologists and one nurse practitioner who see patients of all ages, from infancy through adulthood.  For the convenience of our patients, we operate out of two clinic sites, one in Springfield, MO and one in Branson, MO on Wednesdays. We hope you will find this website useful in getting to know us and how we can help you manage allergies, asthma, and immunodeficiencies as well as other allergy-related diseases.

Our Mission Statement 

Our mission is simple: To provide the best compassionate medical care to our patients.

To achieve this we will...

-   Hold our patients' safety and well-being above all else.

-   Take the time to answer questions and address concerns.

-   Emphasize ongoing continuing medical education and remaining current on the latest medical research.

-   Be available to patients after hours and on weekends.

-   Value our patients' time and strive to run on time.

Our Services


Allergic Rhinitis ("hay fever")

Chronic Sinusitis

Non-Allergic Rhinitis

Occupational Asthma

Chronic Cough

Sinus Headache

Atopic Dermatitis (Eczema)

Allergic Contact Dermatitis

Hives (Urticaria)


Food Allergy, including foodoral immunotherapy

Medication Allergy

Insect sting Allergy

Nasal Polyps

Primary Immunodeficiencies

Mastocytosis/ Mast Cell Activation Syndrome

Hypereosinophilic Disorders

Hereditary Angioedema