Stephen William Carstensen, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

DE00006409 Issued in WA

Practice address

622 S Washington St
Seattle, WA 98104-2720

Phone

(425) 552-3999

Fax

(425) 552-3999

NPI assigned

Jan 17, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

State licenses

Practice roles

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/12565/brand/1/csg/1/fhir/r4

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.

• Premier Sleep Associates, PLLC

  • Dentist
  • Bellevue, WA
  • NPI 1225409956
  NPD (past) Authorized official
• Seattle Sleep Education LLC

  • Health Educator
  • Issaquah, WA
  • NPI 1063833549
  NPD (past) Authorized official
• Steve Carstensen DDS

  • Dental Clinic/Center
  • Bellevue, WA
  • NPI 1669763561
  NPD (past) Authorized official
• Coolidge Pediatrics

  • Pediatrics Physician
  • Coolidge, AZ
  • NPI 1700373180
  NPD (past)

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

{
    "created_epoch": "1168992000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1023160363",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2908 181ST AVE NE",
            "city": "REDMOND",
            "state": "WA",
            "postal_code": "980525936",
            "telephone_number": "425-552-3999",
            "fax_number": "425-552-3999"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "622 S WASHINGTON ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981042720",
            "telephone_number": "425-552-3999",
            "fax_number": "425-552-3999"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CARSTENSEN",
        "first_name": "STEPHEN",
        "middle_name": "WILLIAM",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-17",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "WA",
            "license": "DE00006409",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "WA",
            "license": "DE00006409",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christen A. Carson, PHD
• Kalee Nicole Carson, CPNP-AC
• Kristen Carson, CRNA
• Paige Carson, MD
• Pamela Carson, CMA
• Francesca Cartee, PA-C
• Jaime Carter-Seibert, LMHC
• Ann Carter, PH.D.
• Casey Carter, D.C.
• Catherine E Carter, FNP

• General Practice Dentistry in Seattle, WA
• Providers in Seattle, WA by specialty
• General Practice Dentistry in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 6, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.