What is William Barker's NPI number?

William Barker's National Provider Identifier (NPI) is 1194692889, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Barker's specialty?

William Barker is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).

Where is William Barker located?

William Barker's practice location on file with NPPES is 216 Nw 15th St, Corvallis, OR 97330-5804.

What is William Barker's phone number?

The practice phone number listed in the NPPES registry for William Barker is (541) 360-1837.

Is William Barker's NPI active?

Yes — William Barker's NPI (1194692889) is active in the NPPES registry as of the last update on 2025-10-20.

IndividualActive

William Barker

NPI 1194692889 · Peer Specialist · Corvallis, OR

William Barker is a Peer Specialist provider in Corvallis, OR (NPI 1194692889).

Provider details

NPI number: 1194692889
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Peer SpecialistPrimary175T00000X
Other Service Providers

Profile Score

Basic profile(48/100 index)

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

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% 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

216 Nw 15th St

Corvallis, OR 97330-5804

Phone: (541) 360-1837

Street-level locationGet directions

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Mailing address