Alexander Joseph Diaz, AGACNP-BC

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

AP61427907 Issued in WA

Practice address

925 Seneca St
Seattle, WA 98101-2742

Phone

(206) 625-7373

NPI assigned

Feb 3, 2022

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in GA, WA2 enrollments

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 2

Specialty

Nurse Practitioner

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Virginia Mason Medical CenterGroup PAC ID 9830002617, 867 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Virginia Mason Medical Center Hospital, Seattle, WA, CCN 500005

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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 Care Compare group NPD
• Piedmont Cardiology of Atlanta, LLC

  • Cardiovascular Disease Physician
  • Atlanta, GA
  • NPI 1275729691
  Medicare reassignment NPD
• Virginia Mason Medical Center

  • Family Medicine Physician
  • Bainbridge Island, WA
  • NPI 1730237942
  NPD
• Virginia Mason Medical Center

  • Interventional Cardiology Physician
  • Tacoma, WA
  • NPI 1821711953
  NPD
• Franciscan Medical Group

  • Family Medicine Physician
  • Gig Harbor, WA
  • NPI 1386602555
  NPD (past)

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

• Virginia Mason Medical Center

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1801851258
  Care Compare affiliation

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

{
    "created_epoch": "1643846400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753401600000",
    "number": "1790439263",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 741515",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900741515"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "925 SENECA ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981012742",
            "telephone_number": "206-625-7373"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1802 Yakima Ave Ste 302",
            "address_purpose": "LOCATION",
            "city": "Tacoma",
            "state": "WA",
            "postal_code": "984055305",
            "country_code": "US",
            "telephone_number": "253-627-1244",
            "fax_number": "253-627-6576",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "ALEXANDER",
        "middle_name": "JOSEPH",
        "credential": "AGACNP-BC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-02-03",
        "last_updated": "2025-07-25",
        "certification_date": "2025-07-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "WA",
            "license": "RN60247719",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "WA",
            "license": "AP61427907",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2258377",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Daniela Diaz de la Vega
• Maria Catalina Diaz Gasca, B.A.
• Alan Eduardo Diaz Montoya
• Karina Diaz-Davis, MD, PHD
• Echo Diaz-Farlight, LMP
• Alexander Napoleon Diaz
• Allen Diaz
• Andrea Estefania Diaz
• Brian Diaz, RPH, PHARMD, MS
• Carolyn Victoria Diaz

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 25, 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.