Ian Williamson, MA, BCBA
NPI 1164922241 · Behavior Analyst · New London, CT
Ian Williamson, MA, BCBA is a Behavior Analyst provider in New London, CT (NPI 1164922241).
Provider details
- NPI number
- 1164922241
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- MA, BCBA
- Sex
- Male
- Sole proprietor
- No
- License
- 1191 (NC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
8 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
- 2018-02-15
- Last updated
- 2024-01-17
- Certified
- 2024-01-17
Frequently asked questions
- What is Ian Williamson's NPI number?
- Ian Williamson's National Provider Identifier (NPI) is 1164922241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Williamson's specialty?
- Ian Williamson is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Ian Williamson located?
- Ian Williamson's practice location on file with NPPES is 88 Bank St, New London, CT 06320-6083.
- What is Ian Williamson's phone number?
- The practice phone number listed in the NPPES registry for Ian Williamson is (860) 495-3658.
- Is Ian Williamson's NPI active?
- Yes — Ian Williamson's NPI (1164922241) is active in the NPPES registry as of the last update on 2024-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.