Our Physicians and Providers
Michael 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

Kuo 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,
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,
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, Tuality Hospital, Willamette Valley Medical
Medical licenses: Oregon, Washington

Laura Erickson Metzger, MD, FAAAAI, FACAAI

I have been a physician for 30 years, and formerly practiced allergy and immunology in
Salem, OR for over 20 years.  I really care for my patients, and my goal is to treat my
patients and their families with respect and compassion. I am also very thorough, and I like  
to look at my patient’s  allergic and asthmatic problems in the context of who he or she is  
as a whole person.  I have been married for over 30 years, and have 2 grown sons.  I like to
play piano, hike, run, and volunteer.

College:  B.S., Biological Science with Honors in Humanities, Stanford University, 1982
Medical School:  MD, University of Southern California, 1986
Residency: Internal Medicine, Kaiser Foundation Hospital, Los Angeles, 1989
Fellowship:  Allergy and Clinical Immunology, Kaiser Foundation Hospital, 1992
Diplomat, American Board of Allergy and Immunology
Fellow, American Academy of Asthma, Allergy, and Immunology
Fellow, American College of Asthma, Allergy, and Immunology
President, Oregon Society of Asthma, Allergy, and Immunology, 2006-2007
Presidential Award, Marion -Polk  County Medical Society, 2013

Erica E. Bocchi, PA-C, MPA

Board Certified Physician Assistant
Masters in Physician Assistant, Wichita State University, Wichita, KS
Bachelor of Science, University of Oregon, Eugene, OR
Member, Oregon Medical Association
Member, Oregon Society of Physician Assistants
Member, American Academy of Physician Assistants
Asthma Allergy Centre