Sonya Mastersen
NPI 1942693999 · Clinical Social Worker · Mansfield Center, CT
Sonya Mastersen is a Clinical Social Worker provider in Mansfield Center, CT (NPI 1942693999).
Provider details
- NPI number
- 1942693999
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 8622 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
Mailing address
Registry dates
- Enumerated
- 2015-03-16
- Last updated
- 2015-03-16
Frequently asked questions
- What is Sonya Mastersen's NPI number?
- Sonya Mastersen's National Provider Identifier (NPI) is 1942693999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonya Mastersen's specialty?
- Sonya Mastersen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sonya Mastersen located?
- Sonya Mastersen's practice location on file with NPPES is 34 Ledgebrook Dr, Mansfield Center, CT 06250-1664.
- What is Sonya Mastersen's phone number?
- The practice phone number listed in the NPPES registry for Sonya Mastersen is (603) 359-7830.
- Is Sonya Mastersen's NPI active?
- Yes — Sonya Mastersen's NPI (1942693999) is active in the NPPES registry as of the last update on 2015-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.