Asthma Allergy Centre

Greater Portland Area Allergy Treatments

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Tigard Office 503-620-5614
Newberg Office 503-538-7348
Beaverton Office 503-645-8427
McMinnville Office 503-434-9435
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    • Allergen Immunotherapy
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Our Providers

Asthma Allergy Centre, Our Providers

Asthma Allergy Centre, Our ProvidersMichael J. Barrett, MD, FAAAAI

Native Oregonian (Albany) glad to be back in my home state. Trained in Clinical Immunodeficiency at Duke, I joined Kaiser Permanente to work in Allergy alongside some fantastic physicians that I really respected (Kuo Chang was one of them!) My years with Kaiser included caring for adult and pediatric allergic disorders, as well as immunodeficiencies. I have two wonderful adult children living in Oregon, a fantastic wife of 37 years, and a dog. I enjoy medical practice, running, swimming, biking, backpacking and jazz music.

  • Pediatric Residency: Upstate Medical Center, SUNY Syracuse
  • Epidemiologist, Centers for Disease Control, Division of Viral Diseases
  • Fellowship in Pediatric Allergy and Immunology, Duke University Medical Center
  • Fellow, American Academy of Allergy, Asthma and Immunology
  • Staff Physician, Kaiser Permanente Northwest (KPNW), Department of Allergy and Immunology (26 years)
  • Chief of Department of Allergy and Immunology, KPNW (9 years)
  • Co-Chair, Asthma Steering Committee KPNW
  • Distinguished Physician, KPNW 1991
  • Portland’s Top Doctors, (Portland Monthly Magazine) 6 years
  • Oregon Health Sciences University Clinical Staff, 3 years
  • Michael Barrett MD led the Asthma Allergy Centre to provide quality service to its clients.

Asthma Allergy Centre, Our ProvidersKuo Casey Chang, MD, FAAAAI, FACAAI

  • Pediatric residency: University of Kansas Medical Center, Kansas City, Kansas
  • Fellowship in Allergy and Immunology: National Jewish Medical and Research Center. Denver,Colorado
  • Diplomat, American Board of Allergy and Immunology
  • Fellow, American Academy of Allergy, Asthma and Immunology
  • Member, Rhinosinusitis Committee, American Academy of Allergy, Asthma and Immunology, 2007-present
  • Clinical Lead (faculty), Respiratory and Allergic Diseases Foundation & Advancing Respiratory Care Network, 2006-2009
  • Fellow, American College of Allergy, Asthma and Immunology
  • Member, Asthma Steering Committee, Kaiser Permanente Northwest Region, 1999-2001
  • Distinguished Physician, Kaiser Permanente Northwest Region, 1989
  • President, Oregon Society of Allergy, Asthma and Immunology, 1986-87
  • Clinical Associate Professor of Medicine, Oregon Health Science University, 1989-2002
  • Hospital Appointments: Legacy Hospital System, Providence St. Vincent Medical Center,
  • Willamette Valley Medical Center, Tuality Hospital
  • Medical licenses: Oregon, Washington
  • Dr. Kuo Chang is the one you’ll meet as well once you visit asthma allergy centre.

Asthma Allergy Centre, Our ProvidersRayna J. Donnelly, PA-C, MPAS

  • Masters in Physician Assistant Studies, Pacific University, Hillsboro, OR
  • Bachelor of Science, California State University, Chico, CA
  • Member, Oregon Medical Association
  • Member, Oregon Society of Physician Assistants
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Tigard Office
9735 SW Shady Lane, Suite 102
Tigard, OR 97223
Phone: (503) 620-5614


Beaverton Office
167th Place 1960 NW 167th Place, Suite 102
Beaverton, OR 97006
Phone: (503) 645-8427
McMinnville Office
2185 NW 2nd St., Suite C
McMinnville, OR 97128
Phone: (503) 434-9435

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