Cutting Edge Personalized Medicine for Asthma & Allergies


Pioneers in

Food Allergy Treatment.

We were the earliest pioneers of food allergy desensitization treatment for multiple nuts, shellfish, and other foods, and we continue to break new ground today.

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Individual Needs,

Personalized Solutions.

At Columbia Allergy, we help our patients lead full lives through allergy treatment customized to meet their needs, goals, and lifestyles.

Uniquely Effective
Sublingual Immunotherapy.

Our unique protocols offer a highly effective alternative to traditional allergy treatments, allowing patients a safe and convenient solution for moderate food and environmental allergies.



Precision Immune Targeting.

This most exciting breakthrough allergy treatment uses ultrasound-guided lymph node injections to bring long-term allergy relief with only three visits to our office.


Integrating Western Medicine with Dr. Li’s Herbal Treatments.

We collaborate with Dr. Li to bring her legendary herbal formulations for treating food allergies, eczema, and asthma to the West Coast.

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Dr. Brodenan

Meet your nutritional needs despite food allergy restrictions

Our Registered Dietician, Chau Brodenan, is here to help you achieve a healthy diet despite having food allergies.

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Dr. Umesh Sab is available to help improve your quality of life through management of your rheumatology and primary care needs.


We are committed to providing the highest quality  patient care. Please tell us how we are doing: , Thank you

Patients trust Columbia Allergy & Asthma clinic because we focus on their needs in everything we do.

From convenient locations across the West Coast to patient-centered clinical solutions, our most important commitment is the lasting well-being of every individual who walks through our doors. We’ve lived these values since our earliest days as pioneers in the treatment of allergy and asthma, developing breakthrough approaches for allergy desensitization that match our patients’ lifestyles.

Our Services

Everyone’s experience with allergies and asthma is unique. That’s why we offer a variety of different services to help each of our patients live more fulfilling lives.

Services Overview

Our treatments always utilize a patient-focused approach to develop the most effective and least disruptive option for each individual.

Allergy Testing

The first step in treating allergies is to better understand the specific allergens that affect our patients using a panel of allergy tests.

Allergy Treatment

We next move into the allergy treatment phase, utilizing state-of-the-art techniques including allergy shots and immunotherapy.

Other Services

From oral food challenges to allergy desensitization, we offer a series of additional services to support patients in their ongoing recovery.

Why Columbia Allergy and Asthma clinic?

Patients choose Columbia Allergy for our clinical and scientific approach combined with our commitment to meet their individual needs.

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Pioneers in allergy and asthma treatment

We created breakthrough desensitization treatments for multiple nuts, shellfish, and other foods

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Practical, common-sense approaches

We know patients want to live full lives, so we emphasize practical solutions


Personalized treatments, always

We believe every patient deserves a fully customized treatment plan for their needs


Diverse experts, diverse team

We pride ourselves on bringing a diverse perspective to patient needs

Dr. Jain on Child Food Allergies

Check out Dr. Jain’s interview with Portland Mom’s collective about signs and symptoms of food allergies in children, how to test for allergies, and options for treatment.

Do You Suffer From Allergies and Asthma?

Don’t let allergies run your life. Talk to a Columbia Allergy clinic today to find relief.

Monica H.
“First time at allergy specialist they really care about my kids lifestyle they care more about their patients that their wallet. Now days that's a keeper.. ”

David W.
“Adam and the staff were great at considering my concerns, explaining my results and listening to my questions. Plus everyone was on time and things moved swiftly. ”

Prashant S.
“Absolutely exceptional. The doctor, team and facilities are the best you could ask for. We have never felt more comfortable and safe. With the approach we have taken with our son and has made the whole process so much easier. You guys makes difference in people’s lives”
Noah J.
“Nothing worse than worrying about every cookie and ice cream snack out there that sends us to the ER. Dr.Jain and Dr. Gandhe who are the best. Their expertise and kindness have given us back both dessert and peace of mind. I don't know which one is more appreciated. ”
Hana L.
"Dr.Gandhe always puts my son at ease before treatment. She talks to him directly and in an age appropriate way. My son looks forward to visiting her and the other staff. When I have questions about treatment she responds clearly and, during after hours, Dr. Gandhe responds very quickly. We feel well cared for."
Amy M.
"Dr. Gandhe gives us excellent personalized treatment for my son’s peanut and tree nut allergy. She has a heart for kids with allergies and I feel very safe under her care. My son has already made great progress with his tree nut allergy"
Nikko Y.
"Best Office Ever!"
Georgia B.
"One of the best doctors + staff I have ever met. The care and professionalism is out of this world! We feel comforted and safe at our visit "
"Dr. Jain is very kind and friendly as well as the staff "
Graciela R.
"Dr.Jain and Melissa Hutton PA-C are the best allergy providers I have ever had the pleasure of meeting. The entire staff is kind and helpful. My allergy care is comprehensive and I never feel rushed through an appointment-"
"Best decision we have made in my son’s life so far"
Merritt F.
"We are very confident with Dr. Jain’s treatment plans and recommendations. The staff at the Fremont office is amazing"
Cherylyn V.
"Amazing and awesome team for scary and life-threatening allergies"
Manalie J.
"Dr.Gandhe is very patient, explains everything in great detail and answered all of our questions. It helped to ease out our Anxiety about OIT"
Walter M.
"Dr. Gandhe is great, thoughtful, and a caring provider. All staff is fantastic as well!"
Sarah S.
"We are likely (5 stars) to recommend Dr. Jain to friends and family. Our experience here has been so positive and supportive. It is great clinic and has given us great hopes in treating our son"
Khushi P.
"Extremely great experience. Truly God sent figures. Dr. Jain and Melissa are such wonderful and humble doctors, I have ever met. Thank You. Dr Jain and the entire staff for being with us through the journey. I will recommend him to all the people that I know with allergies
Amrita M.
"Dr. Gandhe has been more than a blessing for us. We love her! She’s so great at talking explaining and planning everything. Her treatment has been spot on and I am so thankful we found you. We love all the nurses, they are so patient and loving"
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