Individual provider Active NPI

Katherine Elizabeth Thorson, MD

  • Surgery Physician
  • Silverdale, WA
National Provider Identifier
1407347677
Registry record updated Aug 6, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
MD61667218 Issued in WA
Practice address
1780 NW Myhre Rd Ste 1220
Silverdale, WA 98383-8676
Phone
(360) 698-4500
Fax
(360) 698-6960
NPI assigned
May 23, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 6, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Colon & Rectal Surgery Physician 208C00000X MD61667218 WA
Surgery Physician 208600000X MD61667218 WA Primary

Addresses

Primary practice location

1780 NW Myhre Rd Ste 1220
Silverdale, WA 98383-8676

Mailing address

1780 NW Myhre Rd Ste 1220
Silverdale, WA 98383-8676
Phone (360) 698-4500

Other practice location 1

1950 NW Myhre Rd Fl 2
Silverdale, WA 98383-7662
Phone (564) 240-4110

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WA
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250821003859 WA Practitioner - General SurgeryPractitioner - Colorectal Surgery (Proctology) 8921355561 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General SurgeryAlso: Colorectal Surgery (Proctology)
Education
University of Nebraska College of Medicine, 2018
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

1780 NW Myhre Rd
Suite 1220
Silverdale, WA 98383-8676

PO
1518 Attn Government Payer Enrollment
Pasadena, CA 91110-1518

Hospital & facility affiliations

  • St Michael Medical Center Hospital, Silverdale, WA, CCN 500039

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy12
Hernia repair (minimally invasive)1-10
Mastectomy1-10
Upper gastrointestinal (GI) endoscopy for acid reflux1-10
Melanoma (skin cancer) excision1-10
Removal of tissue1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Franciscan Medical Group Surgery CurrentSince Jul 15, 2025 Accepting new patients
Franciscan Medical Group Current Accepting new patients
Franciscan Medical Group CurrentSince Jul 15, 2025 Accepting new patients
Franciscan Medical Group Past Accepting new patients

Locations

1950 NW Myhre Rd
Fl 2
Silverdale, WA 98383
Phone (564) 240-4000

1950 NW Myhre Rd
Silverdale, WA 98383
Phone (560) 240-4000

1780 NW Myhre Rd
Ste 1220
Silverdale, WA 98383
Phone (360) 337-6500

1812 S J St
Ste 120
Tacoma, WA 98405
Phone (253) 428-2200

Organizations & group practices 4

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.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1527033600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754438400000",
    "number": "1407347677",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1780 NW MYHRE RD STE 1220",
            "city": "SILVERDALE",
            "state": "WA",
            "postal_code": "983838676",
            "telephone_number": "360-698-4500",
            "fax_number": "360-698-6960"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1780 NW MYHRE RD STE 1220",
            "city": "SILVERDALE",
            "state": "WA",
            "postal_code": "983838676",
            "telephone_number": "360-698-4500",
            "fax_number": "360-698-6960"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1950 NW Myhre Rd Fl 2",
            "address_purpose": "LOCATION",
            "city": "Silverdale",
            "state": "WA",
            "postal_code": "983837662",
            "country_code": "US",
            "telephone_number": "564-240-4110",
            "fax_number": "564-240-4088",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "THORSON",
        "first_name": "KATHERINE",
        "middle_name": "ELIZABETH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-05-23",
        "last_updated": "2025-08-06",
        "certification_date": "2025-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208C00000X",
            "taxonomy_group": "",
            "desc": "Colon & Rectal Surgery",
            "state": "WA",
            "license": "MD61667218",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "WA",
            "license": "MD61667218",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Silverdale, WA

Sources for this page

Verify at the official NPI Registry.