Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Mary M Callahan
Other Technician in Seattle, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679550222
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Registry record
Entity type Individual (Type 1)
Name Ms. Mary M Callahan
Sex Female
Practice address 1806 11th Ave W, Seattle, WA, 98119
Phone (206) 284-1354
Enumeration date Dec 26, 2005
Last updated in NPPES Jul 13, 2026
Taxonomy & licenses
247200000X Other Technician Technologists, Technicians & Other Technical Service Providers · License VA00044306 (WA) 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
What is the NPI number for Mary Callahan?
The National Provider Identifier (NPI) for Mary Callahan is 1679550222, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Callahan practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.