Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joshua Gewirtz
Physician Assistant in Brewster, WA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285018341
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Registry record
Entity type Individual (Type 1)
Name Joshua Gewirtz
Sex Male
Practice address 418 West Main Ave, Brewster, WA, 98812
Phone (509) 663-8711
Enumeration date Jul 17, 2015
Last updated in NPPES Dec 22, 2015
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1285018341 | Medicaid | WA | - |
| P01550140 | Other | WA | RR MEDICARE |
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 Joshua Gewirtz?
Joshua Gewirtz is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-22.