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O&O Alpan, LLC.

Our phone system will be down for maintenance on Friday, May 22nd and Office will be closed on Saturday, May 23rd to Monday, May 25th in observance Memorial day holiday. We will re-open on Tuesday, May 26th 2015. Please feel free to contact us at If you need to reach the doctor immediately for emergency please dial 240-643-6002.

O&O Alpan is a multi-specialty center that provides clinical services, laboratory services and conducts research in different therapeutic areas and rare disorders.
We provide clinical services in the following areas:

  • Lysosomal Storage Disorders.
  • Allergy/Immunology.
  • Infusion clinics and Xolair administration.
  • Allergy testing and immunization.

Our Laboratory services include:

  • Specialty Flow Cytometry laboratory.
  • Patient specimen collection, processing and shipping.

We have a well established research section with the ability to conduct clinical trials in,

  • Lysosomal Storage Disorders.
  • Asthma / Allergy / Immunology / immune deficiencies.
  • Gastroenterology.
  • Neurology.