IndividualActive
Sarah Williston, PH.D.
NPI 1053942433 · Clinical Psychologist · Boston, MA
Sarah Williston, PH.D. is a Clinical Psychologist provider in Boston, MA (NPI 1053942433).
Provider details
- NPI number
- 1053942433
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PS01842 (RI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
150 S Huntington Ave
Boston, MA 02130-4817
Phone: (857) 364-3708
Street-level locationGet directions
Mailing address
56 Waterhouse St
Somerville, MA 02144-1872
Registry dates
- Enumerated
- 2020-02-04
- Last updated
- 2020-02-04
- Certified
- 2020-02-04
Frequently asked questions
- What is Sarah Williston's NPI number?
- Sarah Williston's National Provider Identifier (NPI) is 1053942433, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Williston's specialty?
- Sarah Williston is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Sarah Williston located?
- Sarah Williston's practice location on file with NPPES is 150 S Huntington Ave, Boston, MA 02130-4817.
- What is Sarah Williston's phone number?
- The practice phone number listed in the NPPES registry for Sarah Williston is (857) 364-3708.
- Is Sarah Williston's NPI active?
- Yes — Sarah Williston's NPI (1053942433) is active in the NPPES registry as of the last update on 2020-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.