What is William Diercks's NPI number?

William Diercks's National Provider Identifier (NPI) is 1225736135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Diercks's specialty?

William Diercks is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).

Where is William Diercks located?

William Diercks's practice location on file with NPPES is 216 James St, Seattle, WA 98104-5102.

What is William Diercks's phone number?

The practice phone number listed in the NPPES registry for William Diercks is (206) 464-6454.

Is William Diercks's NPI active?

Yes — William Diercks's NPI (1225736135) is active in the NPPES registry as of the last update on 2023-02-24.

IndividualActive

William Diercks

NPI 1225736135 · Counselor · Seattle, WA

William Diercks is a Counselor provider in Seattle, WA (NPI 1225736135).

Provider details

NPI number: 1225736135
Entity type: Individual
Primary specialty: CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: CG61411525 (WA)

Specialties & taxonomies

CounselorPrimary101Y00000XLicense CG61411525 (WA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(59/100 index)

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

Registry tenure38% of score
3 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

216 James St

Seattle, WA 98104-5102

Phone: (206) 464-6454

Street-level locationGet directions

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Mailing address