IndividualActive
Katharine Marshall, MD
NPI 1891143327 · Addiction Medicine (Internal Medicine) Physician · Portland, OR
Provider details
- NPI number
- 1891143327
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD194144 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
3500 N Interstate Ave
Portland, OR 97227-1196
Phone: (800) 813-2000
Street-level locationGet directions
Mailing address
500 Ne Multnomah St Ste 100
Portland, OR 97232-2099
Additional practice locations (2)
- 3181 Sw Sam Jackson Park RdPortland, OR 97239-3011Phone: (503) 494-8562Fax: (503) 418-5505
- 9205 Sw Barnes RdSte Mt2800Portland, OR 97225Phone: (503) 216-2621
Registry dates
- Enumerated
- 2016-05-25
- Last updated
- 2026-01-14
- Certified
- 2026-01-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.