Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Roy Gunnar Benson Retlin, CCP
Perfusionist in Seattle, WA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366875239
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Registry record
Entity type Individual (Type 1)
Name Roy Gunnar Benson Retlin
Credential CCP
Sex Male
Practice address 1959 Ne Pacific St, Department of Cardiothoracic Surgery, Seattle, WA, 98195
Phone (206) 598-7401
Enumeration date Aug 15, 2013
Last updated in NPPES Aug 15, 2013
Taxonomy & licenses
242T00000X Perfusionist Technologists, Technicians & Other Technical Service Providers · License 1290691319 (MS) Primary
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 Roy Retlin?
Roy Retlin is registered in NPPES with the primary taxonomy of Perfusionist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-15.