1 Dr. Stephen Fritz, MD Allergist/Immunologist - General Avg. Rating: 0/5 Main Location 9200 SE 91st Ave Ste 220Happy Valley, Oregon 97086 Highlights Board CertifiedAccepts Insurance Plans
2 Dr. Mark T Chan, MD Allergist/Immunologist - General Avg. Rating: 0/5 Main Location 10180 SE Sunnyside RdClackamas, Oregon 97015 Highlights Accepts Insurance Plans