William Anderson, PHD, JD
NPI 1407541089 · Mental Health Counselor · Greenwich, CT
William Anderson, PHD, JD is a Mental Health Counselor provider in Greenwich, CT (NPI 1407541089).
Provider details
- NPI number
- 1407541089
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- PHD, JD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2023-04-10
- Last updated
- 2024-04-16
- Certified
- 2024-04-16
Frequently asked questions
- What is William Anderson's NPI number?
- William Anderson's National Provider Identifier (NPI) is 1407541089, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Anderson's specialty?
- William Anderson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is William Anderson located?
- William Anderson's practice location on file with NPPES is 15 Valley Dr Ste 1, Greenwich, CT 06831-5205.
- What is William Anderson's phone number?
- The practice phone number listed in the NPPES registry for William Anderson is (203) 900-1666.
- Is William Anderson's NPI active?
- Yes — William Anderson's NPI (1407541089) is active in the NPPES registry as of the last update on 2024-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.