IndividualActive
Sarah Lotter
NPI 1265846919 · Clinical Social Worker · Boston, MA
Sarah Lotter is a Clinical Social Worker provider in Boston, MA (NPI 1265846919).
Provider details
- NPI number
- 1265846919
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 122248 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
1640 Washington St
Boston, MA 02118
Phone: (617) 369-1561
Street-level locationGet directions
Mailing address
1640 Washington St
Boston, MA 02118-3380
Additional practice locations (1)
- 1493 Cambridge StCambridge, MA 02139-1047Phone: (617) 665-1185
Registry dates
- Enumerated
- 2014-06-19
- Last updated
- 2021-03-08
- Certified
- 2021-03-08
Frequently asked questions
- What is Sarah Lotter's NPI number?
- Sarah Lotter's National Provider Identifier (NPI) is 1265846919, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Lotter's specialty?
- Sarah Lotter is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sarah Lotter located?
- Sarah Lotter's practice location on file with NPPES is 1640 Washington St, Boston, MA 02118.
- What is Sarah Lotter's phone number?
- The practice phone number listed in the NPPES registry for Sarah Lotter is (617) 369-1561.
- Is Sarah Lotter's NPI active?
- Yes — Sarah Lotter's NPI (1265846919) is active in the NPPES registry as of the last update on 2021-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.