Individual provider Active NPI

Sienna J Ringgenberg, MD

  • Diagnostic Radiology Physician
  • Beaverton, OR
National Provider Identifier
1225730500
Registry record updated Oct 14, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
MD224995 Issued in OR
Practice address
4855 SW Western Ave
Beaverton, OR 97005-3499
Phone
(800) 813-2000
NPI assigned
Mar 20, 2023
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 14, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X MD224995 OR Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

4855 SW Western Ave
Beaverton, OR 97005-3499

Mailing address

500 NE Multnomah St Ste 100
Portland, OR 97232-2031
Phone (800) 813-2000

Other practice location 1

3181 SW Sam Jackson Park Rd # L-579
Portland, OR 97239-3098
Phone (503) 494-8652

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR
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 1

Enrollment IDStateProvider typePAC IDDetails
I20251028003834 OR Practitioner - Diagnostic Radiology 1052850914 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Oakland Univ, William Beaumont School of Medicine, 2023
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

1400 SW 5TH Ave
FL 5
Portland, OR 97201-5509

500 NE Multnomah St
Suite 100
Portland, OR 97232-2031

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD224995ORMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Kaiser Foundation Health Plan of the Northwest Current Accepting new patients
Kaiser Foundation Health Plan of the Northwest CurrentSince Oct 6, 2025 Accepting new patients
Kaiser Foundation Health Plan of the Northwest CurrentSince Oct 6, 2025 Accepting new patients
The Regents of the University of California-Irvine PastSince Mar 1, 2023 Accepting new patients

Locations

4855 SW Western Ave
Beaverton, OR 97005
Phone (503) 626-4148

10100 SE Sunnyside Rd
Clackamas, OR 97015
Phone (503) 571-2946

3181 SW Sam Jackson Park Rd
#L579
Portland, OR 97239
Phone (503) 494-8652

500 NE Multnomah St
Ste 100
Portland, OR 97232
Phone (503) 499-5200

2400 Lancaster Dr NE
Salem, OR 97305
Phone (503) 361-5400

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.

NPI Registry JSON

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

{
    "created_epoch": "1679270400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760400000000",
    "number": "1225730500",
    "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": "972322031",
            "telephone_number": "800-813-2000",
            "fax_number": "855-524-5255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4855 SW WESTERN AVE",
            "city": "BEAVERTON",
            "state": "OR",
            "postal_code": "970053499",
            "telephone_number": "800-813-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3181 SW Sam Jackson Park Rd # L-579",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972393098",
            "country_code": "US",
            "telephone_number": "503-494-8652",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RINGGENBERG",
        "first_name": "SIENNA",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-03-20",
        "last_updated": "2025-10-14",
        "certification_date": "2025-10-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "OR",
            "license": "MD224995",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Beaverton, OR

Sources for this page

Verify at the official NPI Registry.