What is Stephen Duffy's NPI number?

Stephen Duffy's National Provider Identifier (NPI) is 1316589757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stephen Duffy's specialty?

Stephen Duffy is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).

Where is Stephen Duffy located?

Stephen Duffy's practice location on file with NPPES is 2033 6th Ave Fl 9, Seattle, WA 98121-2573.

What is Stephen Duffy's phone number?

The practice phone number listed in the NPPES registry for Stephen Duffy is (206) 326-1990.

Is Stephen Duffy's NPI active?

Yes — Stephen Duffy's NPI (1316589757) is active in the NPPES registry as of the last update on 2019-10-16.

IndividualActive

Stephen Duffy

NPI 1316589757 · Chiropractor · Seattle, WA

Stephen Duffy is a Chiropractor provider in Seattle, WA (NPI 1316589757).

Provider details

NPI number: 1316589757
Entity type: Individual
Primary specialty: ChiropractorChiropractic Providers
Sex: Male
Sole proprietor: Yes
License: CH61013487 (WA)

Specialties & taxonomies

ChiropractorPrimary111N00000XLicense CH61013487 (WA)
Chiropractic Providers

Profile Score

Established profile(65/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

2033 6th Ave Fl 9

Seattle, WA 98121-2573

Phone: (206) 326-1990

Street-level locationGet directions

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Mailing address