Thomas C Gustafson
Thomas C Gustafson is a healthcare organization registered as General Practice Physician in Seattle, WA, holding Type 2 (organization) NPI 1821213612 since 2007. The authorized official on file is Thomas Gustafson, Physician.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1821213612 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Thomas C Gustafson |
| Other name | <Unavail> |
| Practice address | 1717 NW MARKET ST, Seattle, WA, 98107 |
| Phone | 2067820500 |
| Fax | 2067820502 |
| Enumeration date | 2007-04-16 |
| Last updated in NPPES | 2008-07-14 |
Authorized official
| Name | Thomas Gustafson |
|---|---|
| Title | Physician |
| Phone | 2067820500 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 363LF0000X | Family Nurse Practitioner | Secondary | AP30007148 | WA |
| 208D00000X | General Practice Physician | Primary | OP00001187 | WA |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 9647421 | Medicaid | WA | — |
| 1046325 | Medicaid | WA | — |
Copy-ready billing details
Provider: Thomas C Gustafson NPI: 1821213612 Taxonomy: 208D00000X (General Practice Physician) Address: 1717 NW MARKET ST, Seattle, WA, 98107
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1285669093 | Thomas Gustafson | Individual | Family Medicine Physician | Seattle, WA |
Verify this record
Cross-check NPI 1821213612 against the authoritative CMS record: view Thomas C Gustafson 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
What is the NPI number for Thomas C Gustafson?
Who is the authorized official for Thomas C Gustafson?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-07-14.