Peter Johnson, LICSW
NPI 1609939966 · Clinical Social Worker · Somerville, MA
Peter Johnson, LICSW is a Clinical Social Worker provider in Somerville, MA (NPI 1609939966).
Provider details
- NPI number
- 1609939966
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1023156 (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
- 2006-12-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Peter Johnson's NPI number?
- Peter Johnson's National Provider Identifier (NPI) is 1609939966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Johnson's specialty?
- Peter Johnson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Peter Johnson located?
- Peter Johnson's practice location on file with NPPES is 39 Ware St, Somerville, MA 02144-1540.
- What is Peter Johnson's phone number?
- The practice phone number listed in the NPPES registry for Peter Johnson is (617) 628-3535.
- Is Peter Johnson's NPI active?
- Yes — Peter Johnson's NPI (1609939966) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.