What is William Harper's NPI number?

William Harper's National Provider Identifier (NPI) is 1861338865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Harper's specialty?

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

Where is William Harper located?

William Harper's practice location on file with NPPES is 1939 Division Ave S, Grand Rapids, MI 49507-2480.

What is William Harper's phone number?

The practice phone number listed in the NPPES registry for William Harper is (616) 247-3815.

Is William Harper's NPI active?

Yes — William Harper's NPI (1861338865) is active in the NPPES registry as of the last update on 2026-04-24.

IndividualActive

William Harper

NPI 1861338865 · Social Worker · Grand Rapids, MI

William Harper is a Social Worker provider in Grand Rapids, MI (NPI 1861338865).

Provider details

NPI number: 1861338865
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Social WorkerPrimary104100000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(46/100 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

1939 Division Ave S

Grand Rapids, MI 49507-2480

Phone: (616) 247-3815

Street-level locationGet directions

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Mailing address