Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Ellyn Elizabeth Cavanagh, PHD, MN, APRN
Nurse Practitioner in Mukilteo, WA · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669707287
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Registry record
Entity type Individual (Type 1)
Name Ms. Ellyn Elizabeth Cavanagh
Credential PHD, MN, APRN
Sex Female
Practice address 4430 106th St Sw, Mukilteo, WA, 98275
Phone (425) 439-6002
Enumeration date Oct 15, 2009
Last updated in NPPES Nov 21, 2014
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP30002468 (WA) Primary
363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 061473-23 (NH) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2034048 | Medicaid | WA | - |
| 30347751 | Medicaid | NH | - |
| 1016889 | Medicaid | VT | - |
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 Ellyn Cavanagh?
Ellyn Cavanagh 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
Browse all → Greg Fjeran General Practice Dentistry · Mukilteo, WA NPI 1659300630 Rebecca Parrish Family Medicine Physician · Mukilteo, WA NPI 1972604213 Susana Myers Pediatrics Physician · Mukilteo, WA NPI 1710164439 Emily Waight Pediatric Nurse Practitioner · Mukilteo, WA NPI 1497994065 Megan Beaumont Pediatrics Physician · Mukilteo, WA NPI 1225343932 Grace Anne Turner Nurse Practitioner · Mukilteo, WA NPI 1871934638 Kristina Taylor Marriage & Family Therapist · Mukilteo, WA NPI 1336519370
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-21.