What is William Spear's NPI number?

William Spear's National Provider Identifier (NPI) is 1235389073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Spear's specialty?

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

Where is William Spear located?

William Spear's practice location on file with NPPES is 60 Man Mar Dr Unit 5, Plainville, MA 02762-2270.

What is William Spear's phone number?

The practice phone number listed in the NPPES registry for William Spear is (508) 316-9747.

Is William Spear's NPI active?

Yes — William Spear's NPI (1235389073) is active in the NPPES registry as of the last update on 2026-04-12.

IndividualActive

William Spear, LCSW

NPI 1235389073 · Social Worker · Plainville, MA

William Spear, LCSW is a Social Worker provider in Plainville, MA (NPI 1235389073).

Provider details

NPI number: 1235389073
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Male
Sole proprietor: Yes
License: 214210 (MA)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 214210 (MA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(86/100 index)

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

Registry tenure38% of score
17 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

60 Man Mar Dr Unit 5

Plainville, MA 02762-2270

Phone: (508) 316-9747

Fax: (508) 316-0924

Street-level locationGet directions

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Mailing address