Individual provider Active NPI

Judith Day Hammer, NP

  • Women's Health Nurse Practitioner
  • Seattle, WA
National Provider Identifier
1922098912
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Women's Health Nurse PractitionerTaxonomy code 363LW0102X
License
AP30001201 Issued in WA
Practice address
4500 9TH Ave NE
Suite 324
Seattle, WA 98105-4737
Phone
(206) 632-2498
NPI assigned
Oct 21, 2005
Last updated
Jul 13, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Women's Health Nurse Practitioner 363LW0102X AP30001201 WA Primary

Addresses

Primary practice location

4500 9TH Ave NE
Suite 324
Seattle, WA 98105-4737

Mailing address

2616 NW 63Rd St
Seattle, WA 98107-2453
Phone (206) 789-7172

Other identifiers 3

IdentifierTypeStateIssuer
8235020MedicaidWA
7119308MedicaidWA
HA0840OtherREGENCE BLUE SHIELD

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
AP30001201WAMDWomen's Health Nurse Practitioner

NPI Registry JSON

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

{
    "created_epoch": "1129852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1922098912",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2616 NW 63RD ST",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981072453",
            "telephone_number": "206-789-7172"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 9TH AVE NE",
            "address_2": "SUITE 324",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981054737",
            "telephone_number": "206-632-2498"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMMER",
        "first_name": "JUDITH",
        "middle_name": "DAY",
        "name_prefix": "Mrs.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-10-21",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LW0102X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Women's Health",
            "state": "WA",
            "license": "AP30001201",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8235020",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "7119308",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "REGENCE BLUE SHIELD",
            "identifier": "HA0840",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.