IndividualActive
Mark Twelves, LICSW
NPI 1437295177 · Clinical Social Worker · Brighton, MA
Mark Twelves, LICSW is a Clinical Social Worker provider in Brighton, MA (NPI 1437295177).
Provider details
- NPI number
- 1437295177
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1017994 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
1853 Commonwealth Ave
Brighton, MA 02135-5498
Phone: (508) 545-0017
Street-level locationGet directions
Mailing address
50 Silver Hill Ln Apt 12
Natick, MA 01760-3742
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Twelves's NPI number?
- Mark Twelves's National Provider Identifier (NPI) is 1437295177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Twelves's specialty?
- Mark Twelves is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Twelves located?
- Mark Twelves's practice location on file with NPPES is 1853 Commonwealth Ave, Brighton, MA 02135-5498.
- What is Mark Twelves's phone number?
- The practice phone number listed in the NPPES registry for Mark Twelves is (508) 545-0017.
- Is Mark Twelves's NPI active?
- Yes — Mark Twelves's NPI (1437295177) 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.