Mrs. Wendy Nadia Duffy, RPH
Mrs. Wendy Nadia Duffy is a Pharmacist provider (Pharmacist) practicing in Everett, WA, registered in the NPPES registry with NPI 1720059439 since 2006. The credential RPH stands for Registered Pharmacist. Practices at Optum Care Washington Pllc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1720059439 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mrs. Wendy Nadia Duffy |
| Credential | RPH |
| Sex | Female |
| Practice address | 4027 HOYT AVE, Everett, WA, 98201 |
| Phone | 4253048476 |
| Enumeration date | 2006-01-30 |
| Last updated in NPPES | 2025-10-29 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 183500000X | Pharmacist | Primary | PH00047622 | WA |
RPH — Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential
Copy-ready billing details
Provider: Wendy Duffy, RPH NPI: 1720059439 Taxonomy: 183500000X (Pharmacist) Address: 4027 HOYT AVE, Everett, WA, 98201
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1235173246 | Peter Nehring | Individual | Internal Medicine Physician | Everett, WA |
| 1053343319 | Corina Nistor | Individual | Family Medicine Physician | Everett, WA |
| 1023043601 | Jayna Neuman | Individual | Audiologist | Everett, WA |
| 1275541393 | Jonathan Seabrook | Individual | Physician Assistant | Everett, WA |
| 1114036217 | Leslie Poppe | Individual | Psychologist | Everett, WA |
| 1689785446 | Lorraine Flaherty | Individual | Physical Therapist | Everett, WA |
| 1619072196 | Gail English | Individual | Occupational Medicine Physician | Everett, WA |
| 1861597403 | Mary Read | Individual | Family Medicine Physician | Everett, WA |
Verify this record
Cross-check NPI 1720059439 against the authoritative CMS record: view Mrs. Wendy Nadia Duffy on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-10-29.