William Colson, LADC
NPI 1154466795 · Addiction (Substance Use Disorder) Counselor · Waterbury, CT
William Colson, LADC is a Addiction (Substance Use Disorder) Counselor provider in Waterbury, CT (NPI 1154466795).
Provider details
- NPI number
- 1154466795
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LADC
- Sex
- Male
- Sole proprietor
- No
- License
- 000750 (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
19 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
- 2007-02-21
- Last updated
- 2013-04-18
Frequently asked questions
- What is William Colson's NPI number?
- William Colson's National Provider Identifier (NPI) is 1154466795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Colson's specialty?
- William Colson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Colson located?
- William Colson's practice location on file with NPPES is 228 Meadow St, Waterbury, CT 06702-1807.
- What is William Colson's phone number?
- The practice phone number listed in the NPPES registry for William Colson is (203) 597-0643.
- Is William Colson's NPI active?
- Yes — William Colson's NPI (1154466795) is active in the NPPES registry as of the last update on 2013-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.