Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alison L Ryan, ARNP
Nurse Practitioner in Seattle, WA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053823641
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Registry record
Entity type Individual (Type 1)
Name Alison L Ryan
Credential ARNP
Sex Female
Practice address 1221 Madison St Ste 500, Seattle, WA, 98104
Phone (206) 386-2552
Fax (206) 215-3959
Enumeration date Nov 3, 2017
Last updated in NPPES Jun 27, 2025
Taxonomy & licenses
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP60800087 (WA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP60800087 (WA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2090271 | 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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alison Ryan?
Alison Ryan is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-27.