Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Johnna Rae Millen, ARNP
Nurse Practitioner in Seattle, WA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790933729
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Registry record
Entity type Individual (Type 1)
Name Johnna Rae Millen
Credential ARNP
Sex Female
Practice address 1221 Madison St Ste 600, Seattle, WA, 98104
Phone (206) 215-5900
Fax (206) 215-2250
Enumeration date Sep 3, 2008
Last updated in NPPES Feb 24, 2026
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP30005774 (WA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2344984 | Medicaid | WA | - |
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.
Frequently asked questions
Where does Johnna Millen practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Johnna Millen?
The National Provider Identifier (NPI) for Johnna Millen is 1790933729, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-24.