Douglas R. Berson, MD

Douglas R. Berson, MD, Mercy
Allergy and Immunology
Internal Medicine


Location and Contact Information

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Allergy & Asthma Care

  • 1585 Woodlake Drive
    Suite 201
  • Chesterfield, MO 63017-5740
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Douglas R. Berson, MD

  • 20 Progress Point Parkway
    Suite 108
  • O Fallon, MO 63368-2207
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Douglas R. Berson, MD

  • 509 Hamacher Street
    Suite 202
  • Waterloo, IL 62298-1592
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About Douglas R. Berson, MD

I treat the whole patient not just a disease and I believe in listening closely to ensure that your concerns have been addressed fully. I maintain a knowledgeable office staff that is available to answer your questions and provide assistance. Physician coverage is available 24 hours 7 days a week. I specialize in Allergy and Immunology, which is the evaluation and treatment of complex immunologic and allergic diseases including asthma, allergic rhinitis, chronic sinusitis, recurrent respiratory infection, immune deficiency, drug allergy, bee sting venom anaphylaxis, food allergy and chronic urticaria.

  • Specialty
    • Allergy and Immunology
    • Internal Medicine
  • Board Certification
    • American Board of Internal Medicine
  • Medical School
    • Medical College of Pennsylvania
  • Residency
    • Barnes-Jewish Hospital
  • Fellowships
    • Washington Surgery Center
  • Mercy Affiliations
    • Mercy Hospital St. Louis

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Accepted Insurance

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