William Olivier, LICSW
NPI 1275864761 · Clinical Social Worker · Worcester, MA
William Olivier, LICSW is a Clinical Social Worker provider in Worcester, MA (NPI 1275864761).
Provider details
- NPI number
- 1275864761
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Male
- Sole proprietor
- No
- License
- 104384 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
Mailing address
Registry dates
- Enumerated
- 2010-01-22
- Last updated
- 2010-01-22
Frequently asked questions
- What is William Olivier's NPI number?
- William Olivier's National Provider Identifier (NPI) is 1275864761, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Olivier's specialty?
- William Olivier is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Olivier located?
- William Olivier's practice location on file with NPPES is 305 Belmont Street, Worcester, MA 01604.
- What is William Olivier's phone number?
- The practice phone number listed in the NPPES registry for William Olivier is (508) 368-3300.
- Is William Olivier's NPI active?
- Yes — William Olivier's NPI (1275864761) is active in the NPPES registry as of the last update on 2010-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.