Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Lyne Ann Schaefer Alfonse, ARNP
Nurse Practitioner in Seattle, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619907110
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Registry record
Entity type Individual (Type 1)
Name Lyne Ann Schaefer Alfonse
Credential ARNP
Sex Female
Practice address 1229 Madison St Ste 1450, Seattle, WA, 98104
Phone (206) 844-6001
Fax (206) 844-6002
Enumeration date Jul 3, 2006
Last updated in NPPES Dec 16, 2024
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP30007657 (WA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 9662453 | 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
What specialty is Lyne Schaefer Alfonse?
Lyne Schaefer Alfonse 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.
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.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-16.