IndividualActive
Sarah Tsakalakos
NPI 1043017080 · Behavior Analyst · Chelmsford, MA
Sarah Tsakalakos is a Behavior Analyst provider in Chelmsford, MA (NPI 1043017080).
Provider details
- NPI number
- 1043017080
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- LABA10000382 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
248 Mill Rd
Chelmsford, MA 01824-4146
Phone: (978) 455-8244
Street-level locationGet directions
Mailing address
11 Paige Dr
Merrimack, NH 03054-2837
Registry dates
- Enumerated
- 2025-02-27
- Last updated
- 2025-02-27
- Certified
- 2025-02-27
Frequently asked questions
- What is Sarah Tsakalakos's NPI number?
- Sarah Tsakalakos's National Provider Identifier (NPI) is 1043017080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Tsakalakos's specialty?
- Sarah Tsakalakos is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Sarah Tsakalakos located?
- Sarah Tsakalakos's practice location on file with NPPES is 248 Mill Rd, Chelmsford, MA 01824-4146.
- What is Sarah Tsakalakos's phone number?
- The practice phone number listed in the NPPES registry for Sarah Tsakalakos is (978) 455-8244.
- Is Sarah Tsakalakos's NPI active?
- Yes — Sarah Tsakalakos's NPI (1043017080) is active in the NPPES registry as of the last update on 2025-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.