IndividualActive
Ann Williamson
NPI 1770886236 · Clinical Social Worker · Chelmsford, MA
Ann Williamson is a Clinical Social Worker provider in Chelmsford, MA (NPI 1770886236).
Provider details
- NPI number
- 1770886236
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 115210 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(82/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
7 Summer St
Suite 19
Chelmsford, MA 01824-3076
Phone: (978) 256-1444
Fax: (978) 441-1773
Street-level locationGet directions
Mailing address
7 Summer St
Chelmsford, MA 01824-3076
Registry dates
- Enumerated
- 2010-12-06
- Last updated
- 2010-12-06
Frequently asked questions
- What is Ann Williamson's NPI number?
- Ann Williamson's National Provider Identifier (NPI) is 1770886236, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Williamson's specialty?
- Ann Williamson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Ann Williamson located?
- Ann Williamson's practice location on file with NPPES is 7 Summer St, Chelmsford, MA 01824-3076.
- What is Ann Williamson's phone number?
- The practice phone number listed in the NPPES registry for Ann Williamson is (978) 256-1444.
- Is Ann Williamson's NPI active?
- Yes — Ann Williamson's NPI (1770886236) is active in the NPPES registry as of the last update on 2010-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.