Joseph C Pfeifer

Primary specialty

Critical Care Medicine Nurse PractitionerTaxonomy code 363LC0200X

License

AP70032474 Issued in WA

Practice address

1100 9TH Ave
Seattle, WA 98101-2756

Phone

(206) 624-1144

NPI assigned

Feb 20, 2025

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: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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.

• Virginia Mason Medical Center

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1801851258
  Medicare reassignment NPD
• Virginia Mason Medical Center

  • Family Medicine Physician
  • Bainbridge Island, WA
  • NPI 1730237942
  NPD

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

{
    "created_epoch": "1740009600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1235935206",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1100 9TH AVE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981012756",
            "telephone_number": "206-624-1144"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1100 9TH AVE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981012756",
            "telephone_number": "206-624-1144"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PFEIFER",
        "first_name": "JOSEPH",
        "middle_name": "C",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-02-20",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "WA",
            "license": "RN61328495",
            "primary": false
        },
        {
            "code": "363LC0200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Critical Care Medicine",
            "state": "WA",
            "license": "AP70032474",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brian Scott Peznowski
• Marissa Pezzutti
• Carrie L Pfab, MS, RD, CD
• Sandra J Pfau, RN 6076846
• Lisa Nicole Pfeffer, DC
• Charlotte Pfeiffer, LICSW
• Allison Pfersich, BCBA
• Katherine Pfundheller, MSW, CDP, LAICSW
• Anne E. Phalen
• Andrew Du Pham

• Critical Care Medicine Nurse Practitioner in Seattle, WA
• Providers in Seattle, WA by specialty
• Critical Care Medicine Nurse Practitioner in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2025; 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.