Signature Allergy & Immunology – Sullivan

Contact Information

  • Office 314-872-3104
  • After Hours 314-872-3104
  • Fax 314-994-7105


  • Second Tuesday of every month, 8:00 AM - 12:00 PM

*Allergy injections will only be given by appointments only as to prevent overcrowding of our shot waiting room.


Main Location

Signature Allergy & Immunology – Sullivan
965 Mattox Drive
Building B
Sullivan, MO 63080
Get directions

Other Locations

Signature Allergy & Immunology
425 North New Ballas
Suite 203
St. Louis, MO 63141


Allergic Rhinitis (Hay Fever), Non-Allergic Rhinitis, Asthma, Adult Onset Asthma, Exercise Induced Asthma, Food Allergies, Hives, Acute and Chronic Sinusitis, Insect Allergies, Eczema, Contact Dermatitis, Itchy Skin, Drug Allergies, Immunology Issues, Recurrent Infection, Primary Immune Deficiencies, Skin Tests, Patch Testing, Oral Challenge and Desensitization


Signature Allergy & Immunology is committed to the diagnosis, treatment, and management of asthma and allergy-related conditions. Our board-certified allergist and immunologist treats conditions related to any allergic condition listed above. Patients will be evaluated and tested depending on their medical history. We offer flexible hours and a family-friendly environment.

Please refer to our Patient Forms for new patient packets, preparation for testing and our policies, including cancellation policies. Our doctors accept all major insurances. For more information, please visit our Insurance page.

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Hamsa N. Subramanian, MD

Hamsa N. Subramanian

St. Louis, MO

  • Allergy and Immunology

James Temprano, MD, MHA, MSHI, FAAAAI

James Temprano

St. Louis, MO

  • Allergy and Immunology
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Mid-level Providers