Healthcare Provider Details

I. General information

NPI: 1730266966
Provider Name (Legal Business Name): DIANE C. TSAI M.D.
Entity Type: Individual
Gender: Female
Sole Proprietor: N

II. Dates (important events)

Enumeration Date: 11/01/2006
Last Update Date: 12/09/2025
Certification Date: 12/09/2025
Deactivation Date:
Reactivation Date:

III. Provider practice location address

3620 N INTERSTATE AVE
PORTLAND OR
97227-1106
US

IV. Provider business mailing address

500 NE MULTNOMAH ST STE 100
PORTLAND OR
97232-2031
US

V. Phone/Fax

Practice location:
  • Phone: 503-813-2000
  • Fax:
Mailing address:
  • Phone: 800-813-2000
  • Fax: 855-524-5255

VI. Provider taxonomy

Scope of Practice (Provider specialty)

# 1
Primary TaxonomyY
Taxonomy Code2085R0001X
TaxonomyRadiation Oncology Physician
License NumberMD174455
License Number StateOR
# 2
Primary TaxonomyN
Taxonomy Code2085R0001X
TaxonomyRadiation Oncology Physician
License NumberG86931
License Number StateCA
# 3
Primary TaxonomyN
Taxonomy Code2085R0001X
TaxonomyRadiation Oncology Physician
License NumberMD00037303
License Number StateWA

VIII. Authorized Official

Name:
Title or Position:
Credential:
Phone: