Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michael Sun
Psychiatry Physician in Seattle, WA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619409497
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Registry record
Entity type Individual (Type 1)
Name Michael Sun
Sex Male
Practice address 5440 Leary Ave Nw, Seattle, WA, 98107
Phone (917) 794-2781
Enumeration date Mar 30, 2017
Last updated in NPPES May 6, 2024
Taxonomy & licenses
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 Michael Sun?
Michael Sun is registered in NPPES with the primary taxonomy of Psychiatry Physician. 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 2024-05-06.