Accessibility Tools
    • Lorilie N

      Option A
      Option B
      Option C
      Option D
      Option E
      Google 449810Google

      Dr. Ispas and her staff are very attentive.
    • Dan H

      Option A
      Option B
      Option C
      Option D
      Option E
      Google 449809Google

      Very personable staff. Dr Ispas is very knowledgeable and answers all my questions as we tackle lifetime allergy issues. I love her positive “let’s fix it” attitude.
    • Anne C

      Option A
      Option B
      Option C
      Option D
      Option E
      Google 449808Google

      This office has to be the friendliest, helpful doctors office ever.
    • Lynne

      Option A
      Option B
      Option C
      Option D
      Option E
      Google 449807Google

      Dr. Ispas listened attentively to my symptoms and prescribed meds that had me breathing better in just over 24 hours. She noted my other meds for a heart condition and gave me good advice.I was fortunate to get a same day appointment for my sinus infection with severe wheezing. The pharmacy she recommended will deliver if needed. I was carefully advised by the pharmacist on how to take my new meds and my order was filled in less than 15 minutes. In all one of my best experiences with any doctor I’ve seen in 50 years.
    • Priscilla J

      Option A
      Option B
      Option C
      Option D
      Option E
      Google 449806Google

      I find the staff to be very friendly and professional. The office is always clean and Dr. Ispas is an excellent doctor and is very thorough with her examination. I like the way she takes her time with you and explain everything to you. I would definitely recommend her if needed.
  • Read more reviews on
  • Google Reviews
  • Vitals Reviews
  • Healthgrades Reviews
  • Zocdoc Reviews
  • WebMD Reviews

Our Office

Allergy Asthma Immunology Institute Office
Allergy Asthma Immunology Institute Footer

Allergy Asthma & Immunology Institute

19455 Deerfield Avenue, Suite 207, Leesburg, VA 20176

  • Tel:
  • Fax:
  • Office Hours

    Monday and Thursday 9:00 AM - 6:00 PM
    Tuesday, Wednesday 9:00 AM - 5:00 PM
    Every other Friday 10:00 AM - 2:00 PM
  • Allergy Shot Hours

    Monday and Thursday 9:00 AM - 6:00 PM
    Tuesday, Wednesday 9:00 AM - 5:00 PM
    Every other Friday 10:00 AM - 2:00 PM

Practice Location

Location Link

Useful Links

  • American Academy of Allergy Asthma & Immunology
  • American College of Allergy Asthma Immunology - Allergist
  • Fare - Food Allergy Reasearch & Education