Upcoming Events: NEW ADDRESS FOR FAIRFAX CLINIC: 8503 Arlington Blvd, #140

The Allergy and Asthma Center is a team of healthcare professionals trained in Allergy, Asthma and Immunology who pride themselves on providing over 25 years of dedicated service using state-of-the-art techniques for treatment, testing, and diagnosis.

Your health is important, especially during these uncertain times. Allergy & Asthma Center is safely serving in-person appointments and patients needing injections. Also, both new and established patients can sign up for Telehealth Virtual Visits via Zoom. The HIPAA-compliant platform is easy to use and accessible via your favorite device: smartphone, tablet, laptop, or desktop. We are here to help!



COVID-19 Notice: Business operations may be affected

Due to ongoing safety measures and adjusting to patient volume across all of our locations, visit our Calendar to stay up-to-date on hours and availability.

COVID 19: Get Vaccinated!


3801 N. Fairfax Dr. STE 31
BOOK YOUR APPOINTMENT TODAY BY CALLING: (800) 778-9923 or (571) 229-5081

The ACAAI* recommends the following people consult with an allergist before getting a COVID-19 vaccine:

Those with a history of an immediate (within four hours of exposure) or severe allergic reaction to:
  • An injectable medication (intravenous, intramuscular, or subcutaneous)
  • Any vaccine [excluding allergy shots)
  • Medications or other products containing polyethylene glycol (Miralax®, Golytely®), polysorbate or polyoxyl 35 castor oil (paclitaxel).
If one of the above applies to you, don’t delay, make an appointment with one of our board certified allergists. * The American College of Allergy Asthma & Immunology COVID-19 Vaccine Task Force, Published online:January 22, 2021

DOI https://doi.org/10.1016/j.anai.2021.01.017

We Are The Allergy and Asthma Center

Allergy & Immunology Specialists in Maryland, Virginia, and Washington, D.C.

Allergies and asthma impact the lives of millions of Americans, and no two people – child or adult – are affected or react exactly the same. That’s why you need an expert team of specialists with perspective, experience, and passion to provide patient-first medical care for adults and children of all ages. The Allergy and Asthma Center is a trusted team of healthcare professionals trained in allergy, asthma, and immunology with over 25 years of service. Using state-of-the-art techniques to test, diagnose, treat and support every patient, we’ll give you the peace of mind to know that you’ve received the most attentive and complete care available from an experienced and trusted partner.

At The Allergy and Asthma Center, we are committed to providing our patients with compassionate, state-of-the-art medical care in a warm and friendly environment. We offer adult and pediatric asthma treatment in Washington, D.C., Maryland, and Virginia, as well as allergy treatment and testing services.

Our mission is not only to provide accurate diagnoses and help patients heal at the underlying source, but to educate patients on how they can improve their quality of life. If you’re ready to take the next step toward better health, locate your nearest Allergy and Asthma Center and schedule an appointment today.

Compassionate Care, Specialized Expertise

Meet Our Team

Combining 30 years of experience and specializations in immunology, our physicians and staff deliver genuinely compassionate care to all of our patients. Our specialists are equally committed to empowering patients with the knowledge they need to fully understand their condition and move forward with their treatment.

More than 25 Convenient Locations and Counting...

Best Allergy Care in Maryland, Virginia and D.C.

All of our expertly-staffed locations are spread across the Maryland and DC Metro area so no one is without care.

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Widely-Accessible Asthma and Allergy Care in Maryland, Virginia, and DC

We're Proud to Accept All Major Insurances

Unlike other allergy and asthma specialists, the Allergy and Asthma Center accepts an extensive variety of insurance providers in Maryland, Virginia, and Washington, D.C.. If your provider is not listed here, please call us. Our knowledgeable staff is happy to help.

Providing Comprehensive Adult and Pediatric Services for More Than 25 Years

Allergy, Asthma, and Immunology Services

The Allergy and Asthma Center uses modern, innovative medicine to provide treatment for allergies, asthma, and immune deficiencies to adults and children of all ages. We also offer a variety of allergy testing services to deliver the accurate diagnosis you deserve.

We Value Your Feedback

We hold ourselves to the highest standards when it comes to patient satisfaction. To ensure that we consistently deliver quality care, we’d love to hear your feedback on your recent visit. Please take a moment to let us know about your experience.

Our patients know our exceptional care best

  • Dhishal J.

    Staff and Dr. Sohn were so beyond kind and patient with me and really made me feel at ease.The lead up to this appointment was very upsetting (because of my awful allergies) but Dr. Sohn and her staff ameliorated a lot of my worries and gave me a good understanding of what is going on. I’m very grateful for their excellent service!

  • Alexandra M.

    Everyone at the office is so friendly and caring!The front desk/Nurse was pleasant and welcoming.. I loved that they kept me feeling comfortable.Walking me through each step and talking to me while we do test.I wasn’t rushed. The provider was very confident and knowledgeable.I felt like they actually cared about my health.

  • Autumn T.

    This place is awesome. The whole staff is very professional and friendly. I would recommend this place to my family and friends.

  • kymisha j.

    The Allergy & Asthma Center in Shady Grove has been nothing but caring, compassionate, and on top of it! They check in when i miss an injection or follow up after an injection. The office is clean, the staff there is AWSOME, and their hours are perfect! When I have questions they are all answered or I am pointed in the direction. They have become my second home!

  • Dariush K.

    Great and friendly staff. Efficient and timely for appointments and shots. Have had a great a experience here!

  • Kimberly H.

    I have been looking for someone to help with my Asthma and Allergies in Hagerstown. Always seemed a dead end. That is until I found Allergy & Asthma Center. The entire staff there go above and beyond. They are a team of caring individuals. When I first called on a Friday they were so worried about me and when I got to my appointment they remembered and were glad I was doing a little better. There was a problem with my appointment (my end) and they immediately pushed my time back an hour so I could get my daughter to work on time. So nice finding a Dr and staff who take the time to listen and help.Now getting a referral for my daughter to also be seen for her AllergiesThank you for all you do. HIGHLY RECOMMENDED

  • Rebecca H.

    The staff was great! I have many allergies and asthma issues. It was so nice to have a Doctor listen to me. It was a wonderful experience

  • Malinda C.

    I absolutely love the new Allergy and Asthma Center! The environment is very friendly and welcoming!Everyone is so helpful and supportive! Way more professional and organized than the center on Diamond Drive.

  • Mitch F.

    Very clean and nice office!!! Will come back here every time for any allergy issues!

  • Claudia P.

    Best service ever, from the front desk, nurses and doctor. I went with my 3 y/o and had skin test, they were amazing. All the information received was clear, we will continue the allergy follow up with them. A plus: they also speak Spanish. Highly recommended.

  • Ryan L.

    I come here twice a week for my allergy injections- everyone is fantastic! Staff is super friendly and all know my name. Would recommend to anyone with allergies!

  • Rebekah M.

    Clean office, courteous staff, and Dr. Yoon is great! I took my son last summer when his environmental allergies were getting bad, and I didn’t know how to manage them. After well-executed allergy testing, Dr. Yoon gave us great recommendations, and he is now doing well. I went back to the office today for myself to have testing and to get medication recommendations. I highly recommend this practice!!

  • Kelly W.

    Dr Ganganna is an expert Dietitian. She assessed my dietary habits and medical history. She coached me to understand the science facts that explain the digestion processes resulting from my dietary choices. She provided a thorough plan for reaching my attainable goals to improve my lifestyle. Her information is key towards my recovery. I am grateful that she shared her expertise with me. I highly recommend Dr. Ganganna.

  • Johnny K.

    Great office, great staff. They really go into detail and explain everything. Would recommend.

  • Shemiah W.

    Amazing front office staff, nurses and doctor. Dr. Obiejemba was amazing, through and so knowledgeable. Highly recommend this office

  • Silvia Q.

    Dr Correa and the entire staff was amazing! All 3 of our boys were recently seen. Everything was well explained. Customer service was great. The medical assistants made my kids feel comfortable. I highly recommend!

  • Jacqueline T.

    The staff and doctor were very patient and kind. Dr. Sohn took the time to answer all my questions and fully explained my prescriptions. Two of the nurses that I interacted with, Sydney and Steffy, were very warm and welcoming. The front desk was able to efficiently and quickly schedule my upcoming appointments with a clear explanation of what to expect from my upcoming immunotherapy shot appointments. I’m glad I came here!

  • a g.

    What a great office. The doctor was friendly, patient and thorough. The nurse and front office staff are also the nicest I’ve ever encountered. Allergies are not fun, but at least you’ll have an enjoyable experience here figuring out how to avoid them!

  • Kevin C.

    I have been a patient receiving allergy shots at the Allergy and Asthma Center in Bel Air for three years. The staff are friendly and professional. The office hours are flexible and they have the best front desk administrator, Sandra. Dr. Daniel is extremely friendly, thoughtful, and knowledgeable. Thank you to the staff for always providing such outstanding service!

  • Samantha K.

    Dr. Simpson and his team are top-notch. Caring, thorough, and thoughtful. I wouldn’t hesitate to recommend.

  • Syleesia T.

    I’ve had a good experience working with Marissa when I come in for allergy injections. Always greeted in a courteous manner to handle billing and medical concerns. This review is also inclusive of another patient Mr. Rodney Robinson.

  • Eric A.

    I was referred to Dr. Simpson by my wife based on her positive experience going to the Allergy and Asthma Center. I’m so glad I made the decision to come here to diagnose my allergy issues and get remediation through allergy shots. Dr. Simpson is great to work with and provides very helpful guidance. His staff are excellent and very professional. I highly recommend the Allergy and Asthma Center.

  • Alicia K.

    We had a great experience at this location with our 10 month old. The doctor we saw obviously liked children and went out of his way to ensure she felt comfortable and secure during her allergy testing. I felt listened to and respected as a mother.

  • Antoinette M.

    Everyone in the office is super nice. Overall great experience!

  • lonzeno b.

    Great staff. No long wait. Good parking. Clean facility


If you’re ready to take the next step toward better health, locate your nearest Allergy and Asthma Center and schedule an appointment today.


8503 Arlington Blvd., Suite #140, Fairfax, VA 22031