Food Allergists in Norwalk and Shelton, CT
At the Allergy Center of Connecticut, we understand how frustrating, and sometimes frightening, food allergies can be. Whether you’re navigating a child’s first allergic reaction or you’ve been managing your own sensitivities for years, we’re here to help you.
Our board-certified food allergists provide personalized care that’s grounded in science and delivered with compassion. With convenient locations in Shelton and Norwalk, you don’t have to search far for a food allergy doctor near you who listens, explains, and walks alongside you through every step.
We care for both adults and children, offering advanced food allergy testing and real-world solutions that make daily life safer.
Understanding Food Allergies: Symptoms, Triggers, and Risks
Food allergies affect people of all ages, and no two experiences are exactly the same. That’s why we take time to understand your specific symptoms and history before jumping into treatment. You might be dealing with obvious signs—like hives, facial swelling, or vomiting after meals—or more subtle issues like recurring stomach pain. Whether it’s a peanut reaction that sends you to the ER or a suspected gluten sensitivity, the right diagnosis starts with listening.
Common food allergy triggers include peanuts, tree nuts, shellfish, milk, soy, wheat, and eggs. Some reactions may be mild. Others can be life-threatening. Knowing the difference matters. Our team uses state-of-the-art food allergy testing, including skin tests, blood tests and challenge tests, to pinpoint the cause of your symptoms and reduce the guesswork. From there, we create a plan to keep you safe, informed, and in control of your health.
Our Comprehensive Food Allergy Diagnostic Approach
Getting a clear diagnosis is the first step toward feeling confident around food again. We take the time to truly listen before we test—because your story matters just as much as your symptoms.
What to Expect:
- Detailed history review: We’ll ask about symptoms, timing, and possible triggers.
- Skin prick testing: A quick and low-discomfort way to test for common allergens.
- IgE blood testing: Ideal for patients who can’t undergo skin tests.
- Oral food challenges: Carefully supervised testing when results are unclear.
Our approach is personalized from the start, and if you’re looking for a food allergist near you who takes the time to do it right, we’re here to help. For families, our pediatric food allergists create a calm, reassuring experience for even the youngest patients.
Personalized Treatment Plans Tailored to You

Once we’ve pinpointed your food allergies, we build a treatment plan that’s both effective and realistic. No scare tactics, just smart, evidence-based care that works for your lifestyle.
Your treatment plan may include:
- Avoidance guidance: Safe ingredient substitutions, meal planning, and dining out strategies.
- Emergency preparedness: Epinephrine auto-injector training and step-by-step action plans.
- Oral Immunotherapy (OIT): Gradual desensitization to specific allergens when appropriate.
- Regular follow-ups: We’ll track progress and adjust your plan as needed.
Whether you’re managing lifelong allergies or looking for food allergy treatment in Connecticut after a new diagnosis, our care goes beyond the basics. We help adults stay safe at work, guide parents through school protocols, and support families through every food milestone.
You’ll never walk this alone. We’re here to answer questions, offer solutions, and provide calm in the chaos. That’s the difference between seeing a provider and partnering with a team of dedicated food allergists who truly get it.
Advanced Therapies: Oral Immunotherapy (OIT) at Our Center
For some patients, avoiding allergens isn’t enough; you want the freedom to worry less. That’s where Oral Immunotherapy (OIT) comes in. OIT helps your immune system build tolerance to specific food allergens over time through carefully measured exposure.
How OIT Works:
- You’ll begin with extremely small doses of your allergen (such as peanut or milk protein).
- Doses are increased gradually under close medical supervision.
- Over time, many patients develop a higher threshold for reactions.
Is it right for you?
We offer OIT for qualifying patients, especially those with severe allergies who want to reduce the risk of accidental exposure. Safety is our top priority; our OIT protocol includes regular in-office visits, clear guidelines for at-home dosing, and emergency precautions.
If you’ve been searching for food allergy treatment that goes beyond avoidance, talk to us about OIT. We’ll help you decide if it’s the right path forward.
Why Choose Us?

Fast Testing for Food Triggers

Custom Plans — including Shots and Drops

Smart Tools to Predict Flare-Ups

Care for All Ages, from Kids to Adults
Peanut Allergy Testing & Treatment
Peanut allergies are among the most common—and most serious—allergies we see. Whether your child had a reaction at daycare or you’ve developed new symptoms yourself, our team offers precise testing and proactive care.
What we offer:
- Skin prick and blood testing to confirm sensitivity
- Emergency planning and epinephrine education
- Oral Immunotherapy (OIT) for eligible patients
As pediatric food allergists and adult specialists, we’re here to help you manage peanut allergies with clarity and confidence.
Shellfish Allergy Testing & Treatment
Shellfish allergies can show up suddenly—sometimes in adulthood—and often stick around for life. If you’ve experienced hives, swelling, or trouble breathing after eating shrimp, crab, or clams, don’t brush it off.
Here’s how we help:
- Shellfish allergy tests to identify crustacean vs. mollusk sensitivity
- Personalized avoidance strategies for safer dining
- Emergency preparedness plans, including epinephrine auto-injectors
Gluten Allergy and Sensitivity Testing
Gluten isn’t always the culprit, but when it is, we’ll help you get real answers. Many patients come to us unsure whether they’re dealing with celiac disease, a wheat allergy, or non-celiac gluten sensitivity. That’s where we come in.
What we offer:
- Comprehensive gluten allergy testing, including blood panels and genetic markers
- Support with elimination diets and nutritional guidance
- Referrals to GI specialists if celiac is suspected
Let’s take the guesswork out of your symptoms, so you can eat with peace of mind.
Soy Allergy Testing & Treatment
Soy allergies can be sneaky, showing up in baby formula, baked goods, and even packaged snacks that seem harmless at first glance. Whether you’re managing a new diagnosis or suspect soy might be behind your symptoms, we’re here to help you sort it out.
Our approach includes:
- Accurate food allergy testing to confirm soy sensitivity
- Label-reading guidance and safe food planning
- Pediatric and adult-focused care plans tailored to your lifestyle
Schedule an Appointment With Our Connecticut Food Allergists
Whether you’re ready to schedule a visit or just have a few questions, we’re here to make it easy. You’ll find our allergy centers in Norwalk and Shelton, both conveniently located and designed with your comfort in mind.
Norwalk Office:
761 Main Ave, Suite 105
Norwalk, CT 06851
Phone: 203-870-8731
Shelton Office:
4 Corporate Dr, Suite 295
Shelton, CT 06484
Phone: 203-374-6103
Both offices offer free parking, easy highway access, and accessible exam rooms. Not sure which location is right for you? Give us a call—we’ll help you find the best fit.
What Our Clients Say
Andre’ D2025-01-14Trustindex verifies that the original source of the review is Google. Very efficient and professional care of patients. Dr. Ronan explains the procedures and answers question very clearly, easy to understand. The staff is very helpful and will make you feel at ease. Always pleasure to come back. Betsy C2024-06-10Trustindex verifies that the original source of the review is Google. I just met with Martin Ronan, PA for some antibiotic testing. I was very pleased with his service and he was personable, gentle and nice to work with. I will follow up with further testing but am happy to recommend him and this office for those seeking allergy testing or treatment. Rosa F2024-01-14Trustindex verifies that the original source of the review is Google. My daughter needed allergy testing for possible food intolerances. The front desk was so nice & Dr. Hemmer was very patient. Highly recommend! Juan P2023-08-16Trustindex verifies that the original source of the review is Google. Dr. Martin Ronan change my life! When I first stepped into his office three years ago, I had gotten so used to my allergies, asthma and my skin being in such terrible condition, I had learned to ignore it. He saw how uncomfortable I was and how my quality of life was horrible and immediately took care of me. Putting me on a regimen that changed my life and continues to follow up to see how I am doing until today. Emmanuelle A2023-05-25Trustindex verifies that the original source of the review is Google. Martin Ronan you’re excellent! I wish you the best of success! I will recommend you to family and friends. Being a good person and compassionate truly make someone their best at what they do. Thanks again for your help with my allergy!😊 Ron S2022-01-07Trustindex verifies that the original source of the review is Google. Excellent Doctor and staff !