Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mason M. Greenslade, DC

Individual provider Chiropractor · NPI 1366865388

Mason M. Greenslade, DC is a Chiropractor in Seattle, Washington. Works from 2 locations. Licensed in Washington.

Licensed in
WA
In the registry since
2014
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

928 NW Leary Way Ste 203
Seattle, WA 98107
Phone: (425) 387-7215
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 27514 82nd Dr Nw, Stanwood, WA 98292-9564 — (425) 387-7215

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 60431420 (WA)

Record details

NPI number1366865388
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorNo
NPI enumeratedJanuary 27, 2014
Last updated in NPPESJanuary 15, 2020
Certification dateJanuary 15, 2020

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