NPIMap

Individual provider Active NPI

Stephen Killefer Allison, M.D.

  • Diagnostic Radiology Physician
  • Seattle, WA
National Provider Identifier
1508058280
Registry record updated Jul 25, 2013
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
60270109 Issued in WA
Practice address
1959 NE Pacific St
Seattle, WA 98195-0001
Phone
(206) 543-3320
NPI assigned
Aug 15, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 25, 2013

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 A106737 CA
Diagnostic Radiology Physician 2085R0202X 60270109 WA Primary

Addresses

Primary practice location

1959 NE Pacific St
Seattle, WA 98195-0001

Mailing address

PO Box 50095
Seattle, WA 98145-5095
Phone (206) 543-6420

Other identifiers 1

IdentifierTypeStateIssuer
1508058280MedicaidWA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20130904000440 WA Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 3375683972 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
University of Southern California Keck School of Medicine, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Radia Inc P SGroup PAC ID 9931012812, 275 clinicians
The Association of University PhysiciansGroup PAC ID 0446162697, 3,484 clinicians
Kaiser Foundation Health Plan of WashingtonGroup PAC ID 9032022579, 1,519 clinicians
Central Washington Health Services AssociationGroup PAC ID 4880504596, 708 clinicians

Practice addresses (Care Compare)

Kirkland, WA 98033
Phone (425) 563-1500

12040 NE 128TH St
Kirkland, WA 98034-3013
Phone (425) 899-1800

1959 NE Pacific St
Seattle, WA 98195-0001
Phone (206) 598-4333

201 16TH Ave E
Seattle, WA 98112-5226
Phone (206) 326-3000

820 N Chelan Ave
Wenatchee, WA 98801-2028
Phone (509) 663-8711

Hospital & facility affiliations

  • Providence St Peter Hospital Hospital, Olympia, WA, CCN 500024
  • Peacehealth Southwest Medical Cente Hospital, Vancouver, WA, CCN 500050
  • Legacy Salmon Creek Medical Center Hospital, Vancouver, WA, CCN 500150
  • Confluence Health Hospital Hospital, Wenatchee, WA, CCN 500016
  • University of Washington Medical Ctr Hospital, Seattle, WA, CCN 500008

Merit-based Incentive Payment System (MIPS)

Final score
93.85 of 100Reported as apm
Quality
74.6
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
60270109WAMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Radia Inc P S Diagnostic Radiology CurrentSince Jun 4, 2025 Accepting new patients
Central Washington Health Services Association CurrentSince Aug 1, 2025 Accepting new patients
Kaiser Foundation Health Plan of Washington CurrentSince Aug 11, 2025 Accepting new patients
Kaiser Foundation Health Plan of Washington CurrentSince Aug 11, 2025 Accepting new patients
South Sound Radiologists Inc P S Diagnostic Radiology CurrentSince Jun 4, 2025 Accepting new patients
Kaiser Foundation Health Plan of Washington Current Accepting new patients
The Association of University Physicians Diagnostic Radiology CurrentSince Jul 15, 2013 Accepting new patients
Central Washington Health Services Association Current Accepting new patients

Locations

12040 NE 128th St
Kirkland, WA 98034
Phone (425) 899-1000

3417 Ensign Rd NE
Olympia, WA 98506
Phone (360) 493-4600

201 16th Ave E
Seattle, WA 98112
Phone (206) 326-4545

200 15th Ave E
Seattle, WA 98112
Phone (206) 326-4530

1959 NE Pacific St
Seattle, WA 98195
Phone (206) 598-4333

1959 NE Pacific St
#358081
Seattle, WA 98195

9505 S Steele St
Tacoma, WA 98444
Phone (253) 597-6800

1201 S Miller St
Wenatchee, WA 98801
Phone (509) 662-2208

820 N Chelan Ave
Wenatchee, WA 98801
Phone (509) 863-4868

933 Red Apple Rd
Wenatchee, WA 98801
Phone (509) 655-6125

Interoperability endpoints

  • Direct secure messaging: sallison4630518@ghc.direct-ci.net

Organizations & group practices 36

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.

View all 36

Hospital & facility affiliations 8

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": "1187136000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1374710400000",
    "number": "1508058280",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095",
            "telephone_number": "206-543-6420"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1959 NE PACIFIC ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981950001",
            "telephone_number": "206-543-3320"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALLISON",
        "first_name": "STEPHEN",
        "middle_name": "KILLEFER",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-08-15",
        "last_updated": "2013-07-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A106737",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WA",
            "license": "60270109",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1508058280",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.