Hamsa N. Subramanian, MD

Contact Information

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

Specialties

Allergy and Immunology

Main Location

Signature Allergy & Immunology
425 North New Ballas
Suite 203
St. Louis, MO 63141
314-872-3104
Get directions

Hospital Affiliations

Missouri Baptist Medical Center

Areas of Interest

Allergy-Related Conditions, Treatment for Asthma and Hives, Skin Disorders, Eczema, Contact Dermatitis, Non-Allergic Rhinitis, Acute and Chronic Sinusitis, Recurrent Infections, Primary Immune Deficiencies

About

Hamsa N. Subramanian, MD is a board-certified allergist and immunologist who treats both children and adults. Her primary focus is educating and counseling patients, especially those with food allergies.

Outside of work, Dr. Subramanian likes to travel, volunteer in the community, and spend time with her family.

Dr. Subramanian accepts all major insurances. For more information, please visit our Insurance page.

Education

Medical School: Thanjavur Medical College
Residency: Internal Medicine, St. Mary's Hospital
Fellowship: Allergy and Immunology, Washington University

Certifications & Organizations

American Board of Internal Medicine
American Board of Allergy and Immunology

Awards & Honors

Recognized by Castle Connolly as a Top Doctor: 2022, 2023, 2024, 2025

Oral Immunotherapy for Peanut Allergy

After a long wait, the FDA has approved oral immunotherapy for peanut allergies. This treatment is approved for children ages four and above, and needs to be started before your child heads off to college by age 17 or 18. This is not by any means a cure for food allergies, but intended to reduce the reactivity when exposed to the deadly allergen.

There are some exceptions, but the majority of the patients qualify for this treatment. It is time-consuming during the dose escalation (otherwise called the updosing phase), but it is worth it for a good quality of life as your child feels comfortable in social settings and you feel comfortable when the child leaves the protection of your home. I am happy to discuss this exciting treatment with families that are concerned about their child being allergic to peanuts. Make an appointment today; the entire family can participate via virtual telehealth appointment for the initial discussion. – Dr. S.