Individual provider · Type 1 NPI

Katharine F. Marshall, MD

Addiction Medicine (Internal Medicine) Physician · Portland, OR

NPI number 1891143327 Active

Practice location

3500 N Interstate Ave
Portland, OR 97227-1196

Call (800) 813-2000 Map

Mailing address

500 NE Multnomah St Ste 100
Portland, OR 97232-2099

Other practice locations

  • 3181 SW Sam Jackson Park Rd, Portland, OR 97239-3011 · (503) 494-8562
  • 9205 SW Barnes Rd, Ste MT2800, Portland, OR 97225 · (503) 216-2621

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician 207R00000XMD194144 (OR)
Student in an Organized Health Care Education/Training Program 390200000XPG189357 (OR)
Addiction Medicine (Internal Medicine) Physician Primary 207RA0401XMD194144 (OR)

Addiction Medicine (Internal Medicine) Physician: An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.

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About NPI 1891143327

Katharine F. Marshall, MD's National Provider Identifier is 1891143327, issued on May 25, 2016. The primary taxonomy on file is Addiction Medicine (Internal Medicine) Physician (207RA0401X), and the practice location is in Portland, OR. The record was last updated on Jan 14, 2026.