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OSF Preferred Providers

• 

  Penelope A. Ewbank, MD

  Specialty: Allergy & Immunology

  Clinical Interests: Sinusitis, Hay Fever, Hives

  Offices In: Peoria

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• Charles Frey, DO

  Specialty: Allergy & Immunology, Pediatrics

  Offices In: Rockford

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• Timothy E. Jessen, MD

  Specialty: Allergy & Immunology, Internal Medicine

  Offices In: Rockford

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• 

  Julie C. Klemens, MD

  Specialty: Allergy & Immunology

  Offices In: Peoria

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• Chester J. Mellies, MD

  Specialty: Allergy & Immunology

  Offices In: Rockford

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• Stephen J. Smart, MD

  Specialty: Allergy & Immunology

  Clinical Interests: Asthma, Sinusitis, Hay Fever, Migraines, Hives

  Offices In: Peoria

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• Howard J. Zeitz, MD

  Specialty: Allergy & Immunology

  Offices In: Rockford

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