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Relief Starts Here

Allergy, Asthma & Immunology Clinic in the San Gabriel Valley

207 S Santa Anita St. Suite 335, San Gabriel, CA 91776

Phone - 626-284-3400 Fax - 626- 284-3434

Led by board-certified allergist Dr. Stephen Wong, Modena Allergy + Asthma - San Gabriel Valley offers comprehensive allergy, asthma, respiratory and immune system treatments and services. We provide personalized, compassionate care for both adult and pediatric patients. We serve communities throughout the San Gabriel Valley including Pasadena, Alhambra, San Gabriel, El Monte, Glendale, West Covina and more. Give us a call to schedule your appointment today.

Book San Gabriel Valley
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Mon: 8:00am - 5:00pm Today's Hours
Tue: 8:00am - 5:00pm Today's Hours
Wed: 8:00am - 5:00pm Today's Hours
Thur: 8:00am - 5:00pm Today's Hours
Fri: 8:00am - 5:00pm Today's Hours
Sat: 8:30am - 12:00pm Today's Hours
Sun: Closed Today's Hours
Child receiving an oral immunotherapy dose from a Modena Health clinician.

Oral Immunotherapy

Daily Dose Program

At Modena Allergy + Asthma, our Daily Dose Oral Immunotherapy (OIT) Program is designed to help patients achieve lasting desensitization from food allergies, giving them greater freedom and confidence in everyday life.

With three personalized treatment pathways, we tailor care to each patient’s individual needs and goals:

Low Dose OITTraditional OITSublingual Immunotherapy

We treat the Top 9 food allergens and more, including peanut, tree nuts, milk, egg, wheat, soy, sesame, fish, and shellfish.

The Daily Dose Program goes beyond treatment, providing families with added support throughout their OIT journey, including a 24/7 on-call nurse line, community events, an OIT tracking app, and single or multi-food treatment options.

"Doctor Wong is an excellent Doctor!!!"

Dr. Stephen Wong's Testimonials

"Doctor Wong is an excellent Doctor!!! I have being seeing him since my 30’s for severe asthma and now I am in my 50’s and my asthma has been under control for quite a long time…He is a specialist and, of course, when you have an appointment with him, you have to wait a bit more then a regular doctor because he has to go through everything you have and explain everything about the medications etc. I religiously take my meds and follow instructions which is important for a condition like asthma and allergies.

His office personnel is wonderful as well, they are all very nice and kind and always very helpful!"

- Debora C.

"Dr. Wong takes his time with each patient, which I really appreciate. He explained in detail many health tips related to allergies and even other aspects of my overall health. He even opened my eyes to the fact that my chi is messed up because he knows I’m into homeopathic health, too. He’s helping me get my health in order ALL AROUND. Worth the drive to get here."

- Amber R.

Expert Care

Your Trusted Providers At Modena Allergy + Asthma - San Gabriel Valley

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Stephen Wong, MD

Allergist & Immunologist

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Adrienne Chan, PA-C

Physician Assistant

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Ricky Leung, PA-C

Physician Assistant

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Susana Rangel, FNP-C

Nurse Practitioner

Led by Stephen Wong, MD, the San Gabriel Valley team is made up of experienced, compassionate providers who evaluate allergy and asthma concerns for children and adults. Now accepting new patients.

The San Gabriel Valley care team emphasizes clear explanations, personalized care, and thorough follow-up.

At Modena Allergy + Asthma, we prioritize compassionate, top-quality care tailored to your needs. Join us at one of our California locations and experience healthcare that truly cares about you and your family.

Ready to See an Allergist?

Get Answers with Expert Allergy Testing and Evaluation.

If you suspect you or your child may have an allergy, an evaluation with a board-certified allergist can help provide answers before you make major changes to your diet, lifestyle, or environment. By reviewing your symptoms and medical history and using targeted allergy testing when appropriate, an allergist can help determine whether a suspected allergen is actually causing your symptoms—and help you avoid unnecessary restrictions based on assumptions or unvalidated testing.

For suspected food allergies, evaluation typically includes a detailed reaction history and targeted food allergy testing. When appropriate, a supervised oral food challenge may be recommended to help confirm or rule out a food allergy.

If a food allergy is diagnosed, your allergist can create an individualized management plan that may include allergen avoidance, prescribed epinephrine, an emergency action plan, and discussion of available food allergy treatment options. While no evaluation or treatment can eliminate all risk, the right diagnosis can help you better understand and manage your allergies with confidence.

Dr. Ali Doroudchi examining a young child with a stethoscope.

Clinic Details

Modena Allergy + Asthma - San Gabriel Valley

207 S Santa Anita St. Suite 335
San Gabriel, CA 91776
626-284-3400

Call before the visit to confirm that the requested treatment appointment is currently available at the San Gabriel Valley clinic.

Care at this location

Services & Treatments

Explore allergy, asthma, and immunology services represented at the San Gabriel Valley clinic.

Your first visit is all about getting to know you, understanding what you’ve been experiencing, and figuring out the best next steps together. Your allergist will take the time to talk through your symptoms, health history, and any concerns you have—whether you’re visiting us for allergies, asthma, frequent infections, or something else.

If you have previous allergy testing, relevant medical records, or a list of medications you’re currently taking, feel free to bring them along. Don’t worry if you don’t have everything—we can still get started and help determine what information or testing may be helpful from there.

What should I bring to my appointment?

There’s no need to do a lot of preparation before your visit. If you have them handy, it can be helpful to bring:

  • A list of your current medications, inhalers, or epinephrine
  • Previous allergy or asthma test results
  • Relevant records from your primary care doctor or other specialists
  • Any questions or concerns you’d like to discuss

Most importantly, just come ready to tell us what’s been going on. We’ll take it from there.

Appointments & Insurance

Scheduling made easy for your experience.

We work with many major insurance carriers.

  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Cigna
  • UnitedHealthcare

Don’t see your carrier?

Insurance participation varies by plan, provider, network, and location. Please contact our team with your insurance card to confirm current participation.

Ready to schedule?

Call us or submit an online appointment request.

Have questions about insurance?

Have your insurance card ready and our team can help confirm current participation.

Is this a medical emergency?

Call 911 and follow your prescribed emergency action plan. Please do not use this form for emergencies.

The Answer is Closer Than You Think

Modena Health Near You

Our goal at Modena Health is to get your health and wellness questions answered in a comfortable, low-stress environment. To make that goal easier to achieve than ever before, we've now opened multiple locations across Southern California and Arizona. Click the locations below to find a qualified Modena Health specialist near you who can help you get to the bottom of your health questions.