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JOHN MASTERSON
NPI 1427235084
Chiropractor in Seattle, WA

Active since January 25, 2008
925 8TH AVE N, SEATTLE, WA 98109(206) 957-9050 Get Directions Write a Review

NPPES record last updated: January 25, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About John Masterson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN MASTERSON (NPI 1427235084) is an individual chiropractor in Seattle, Washington, licensed in Washington (CHOOO33793) and active in the NPI registry since January 2008.

NPPES Registry Identity

NPI1427235084
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameJOHN MASTERSON
Location Address925 8TH AVE NSeattle, WA 98109-6304
Mailing Address535 Pontius Ave N Apt 611Seattle, WA 98109-4455
Phone(206) 957-9050
Sole ProprietorYes
Enumeration DateJanuary 25, 2008
✔ NPI 1427235084 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in WA · CHOOO33793
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
925 8TH AVE N, Seattle, WA 98109
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Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SARA MARIE NULLE D.C.
Chiropractor
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050
JUSTIN REALI
Specialist
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050
SAM GARCIA
Specialist
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050
JESSICA FARRELL
Specialist
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050
JENNIFER C WALLERICH DPT
Physical Therapist
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 631-2818
STEVE DELISSIO
Specialist
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050
DR. JOSHUA PAUL ELDRIDGE D.C.
Chiropractor
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050
SARAH CLAUSON
Specialist
925 8TH AVE N
SEATTLE, WA 98109
King County (206) 957-9050

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Masterson's NPI number?

The NPI number for John Masterson is 1427235084. It was assigned to this individual provider in the NPPES registry on January 25, 2008.

Where is John Masterson located?

John Masterson practices at 925 8th Ave N, Seattle, WA 98109. The listed phone number is (206) 957-9050.

What is John Masterson's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

When was this NPI record last updated?

The NPPES record for John Masterson was last updated on January 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.