Leslie Bass, MSW
NPI 1801961941 · Clinical Social Worker · Stoneham, MA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Bass, MSW is a Clinical Social Worker provider in Stoneham, MA (NPI 1801961941).
Provider details
- NPI number
- 1801961941
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 102209 (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
19 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
- 2006-11-22
- Last updated
- 2007-07-09
Frequently asked questions
- What is Leslie Bass's NPI number?
- Leslie Bass's National Provider Identifier (NPI) is 1801961941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Bass's specialty?
- Leslie Bass is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Leslie Bass located?
- Leslie Bass's practice location on file with NPPES is 1 Central St, Stoneham, MA 02180-2023.
- What is Leslie Bass's phone number?
- The practice phone number listed in the NPPES registry for Leslie Bass is (781) 662-5118.
- Does Leslie Bass accept Medicare?
- Leslie Bass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Bass's NPI active?
- Yes — Leslie Bass's NPI (1801961941) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.