Brett C Lassinger, MD
Brett C Lassinger is a Pediatrics Physician provider (Pediatrics) practicing in Everett, WA, registered in the NPPES registry with NPI 1154397578 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1154397578 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Brett C Lassinger |
| Credential | MD |
| Sex | Male |
| Practice address | 3901 HOYT AVE, Everett, WA, 98201 |
| Phone | 4252590966 |
| Enumeration date | 2006-02-25 |
| Last updated in NPPES | 2016-03-15 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208000000X | Pediatrics Physician | Primary | 33968 | WA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1003696 | Medicaid | WA | — |
Copy-ready billing details
Provider: Brett Lassinger, MD NPI: 1154397578 Taxonomy: 208000000X (Pediatrics Physician) Address: 3901 HOYT AVE, Everett, WA, 98201
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1306842554 | Jennifer Kim | Individual | Sleep Medicine (Internal Medicine) Physician | Everett, WA |
| 1720086168 | Louie Tsiktsiris | Individual | Rheumatology Physician | Everett, WA |
| 1659373488 | Grant Schmidt | Individual | Family Medicine Physician | Everett, WA |
| 1831186766 | Optum Care Washington Pllc | Organization | Multi-Specialty Clinic/Center | Everett, WA |
| 1558350074 | Ling Harris | Individual | Adult Health Nurse Practitioner | Everett, WA |
| 1144201039 | Howard Lichtenstein | Individual | Internal Medicine Physician | Everett, WA |
| 1750363628 | Dianne Kutzke | Individual | Family Nurse Practitioner | Everett, WA |
| 1265414049 | Lisa Murphy | Individual | Family Medicine Physician | Everett, WA |
Verify this record
Cross-check NPI 1154397578 against the authoritative CMS record: view Brett C Lassinger 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 2016-03-15.