IndividualActive
Alexander Tsonas
NPI 1255816740 · Clinical Social Worker · Chelsea, MA
Alexander Tsonas is a Clinical Social Worker provider in Chelsea, MA (NPI 1255816740).
Provider details
- NPI number
- 1255816740
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 119656 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
Seaport Academy
285 Commandants Way
Chelsea, MA 02150
Phone: (617) 241-3871
Approximate (ZIP-level) locationGet directions
Mailing address
22 20th St
Newbury, MA 01951-1504
Registry dates
- Enumerated
- 2018-10-01
- Last updated
- 2018-10-01
Frequently asked questions
- What is Alexander Tsonas's NPI number?
- Alexander Tsonas's National Provider Identifier (NPI) is 1255816740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Tsonas's specialty?
- Alexander Tsonas is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Alexander Tsonas located?
- Alexander Tsonas's practice location on file with NPPES is Seaport Academy, Chelsea, MA 02150.
- What is Alexander Tsonas's phone number?
- The practice phone number listed in the NPPES registry for Alexander Tsonas is (617) 241-3871.
- Is Alexander Tsonas's NPI active?
- Yes — Alexander Tsonas's NPI (1255816740) is active in the NPPES registry as of the last update on 2018-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.