IndividualActive
Karen Larsen, LICSW
NPI 1871000620 · Clinical Social Worker · Boston, MA
Karen Larsen, LICSW is a Clinical Social Worker provider in Boston, MA (NPI 1871000620).
Provider details
- NPI number
- 1871000620
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- No
- License
- 113460 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(69/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
200 Berkeley St
Boston, MA 02116-5022
Phone: (617) 572-0529
Street-level locationGet directions
Mailing address
191 Parkerville Rd
Southborough, MA 01772-1751
Registry dates
- Enumerated
- 2018-01-02
- Last updated
- 2018-01-02
Frequently asked questions
- What is Karen Larsen's NPI number?
- Karen Larsen's National Provider Identifier (NPI) is 1871000620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Larsen's specialty?
- Karen Larsen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Karen Larsen located?
- Karen Larsen's practice location on file with NPPES is 200 Berkeley St, Boston, MA 02116-5022.
- What is Karen Larsen's phone number?
- The practice phone number listed in the NPPES registry for Karen Larsen is (617) 572-0529.
- Is Karen Larsen's NPI active?
- Yes — Karen Larsen's NPI (1871000620) is active in the NPPES registry as of the last update on 2018-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.