Katharine F Marshall, MD

Primary specialty

Addiction Medicine (Internal Medicine) PhysicianTaxonomy code 207RA0401X

License

MD194144 Issued in OR

Practice address

3500 N Interstate Ave
Portland, OR 97227-1196

Phone

(800) 813-2000

NPI assigned

May 25, 2016

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in OR, WA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Internal MedicineAlso: Addiction Medicine

Education

Oregon Health Sciences University School of Medicine, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Kaiser Foundation Health Plan of the NorthwestGroup PAC ID 5799688230, 1,805 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1184786527

  Internal Medicine, WA

  Medicare reassignment Care Compare group NPD
• Kaiser Foundation Health Plan of the Northwest

  • Clinic/Center
  • Hillsboro, OR
  • NPI 1942718622
  NPD
• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1982959565

  Internal Medicine

  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1464134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1891143327",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "500 NE MULTNOMAH ST STE 100",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972322099",
            "telephone_number": "800-813-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3500 N INTERSTATE AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972271196",
            "telephone_number": "800-813-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9205 SW Barnes Rd",
            "address_2": "STE MT2800",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "97225",
            "country_code": "US",
            "telephone_number": "503-216-2621",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3181 SW Sam Jackson Park Rd",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972393011",
            "country_code": "US",
            "telephone_number": "503-494-8562",
            "fax_number": "503-418-5505",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARSHALL",
        "first_name": "KATHARINE",
        "middle_name": "F",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-05-25",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OR",
            "license": "MD194144",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "OR",
            "license": "PG189357",
            "primary": false
        },
        {
            "code": "207RA0401X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Addiction Medicine",
            "state": "OR",
            "license": "MD194144",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• John Lawrence Marshall, MD
• Johnny Julia Marshall, LMT
• Julie Marshall, PH.D.
• Kallie Marie Marshall
• Karleen Marshall
• Katherine Kelley Marshall, L.AC.
• Kathryn Marshall, RN, BSN
• Kuhn R. Marshall, DMD
• Leon Bruce Marshall, D.O .
• Megan Marshall, MA, LPCI

• Addiction Medicine (Internal Medicine) Physician in Portland, OR
• Providers in Portland, OR by specialty
• Addiction Medicine (Internal Medicine) Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.