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Dr. KATHY CHANG, MD, MPH

Environmental Medicine Physician · Occupational Medicine Physician

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Practice location

PORTLAND, OR, 97230

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Phone: (800) 813-2000

Portland, OR, 97217-7679 · (503) 285-6627

Vancouver, WA, 98683-7582 · (800) 813-2000

Pollen today in Portland, OR

Total Pollen Index: 3 / 100 (Low)

Dominant allergen today: Tree

  • Tree pollen: 0 (Low)
  • Grass pollen: 0 (Low)
  • Weed pollen (ragweed): 0 (Low)
  • Mold: 1.2 (Low)
See the full Portland pollen page

Other Environmental Medicine Physician near PORTLAND, OR

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Provider information

NPI: 1043357742

Data source: CMS National Plan and Provider Enumeration System

Federal information last updated: 2/25/2026