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Mrs. Judith Day Hammer, NP

Women's Health Nurse Practitioner in Seattle, WA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1922098912

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Registry record

Entity type Individual (Type 1)
Name Mrs. Judith Day Hammer
Credential NP
Sex Female
Practice address 4500 9th Ave Ne, Suite 324, Seattle, WA, 98105
Phone (206) 632-2498
Enumeration date Oct 21, 2005
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP30001201 (WA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier Type State Issuer
8235020 Medicaid WA -
7119308 Medicaid WA -
HA0840 Other - REGENCE BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Judith Hammer?
The National Provider Identifier (NPI) for Judith Hammer is 1922098912, a Type 1 (individual) record in the CMS NPPES registry.
Where does Judith Hammer practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.