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About this NPIWhat this record shows.
NPI 1407541089 is registered to Dr. William Anderson PHD, Jd, a Mental Health Counselor practising at 15 Valley Dr Ste 1 in Greenwich, Connecticut. Mental Health Counselor is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. William Anderson PHD, Jd has been enumerated in the National Provider Identifier (NPI) registry since 2023.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. William Anderson PHD, Jd accepts. To confirm in-network status with your specific health plan, contact Dr. William Anderson PHD, Jd directly at (203) 900-1666.
Frequently asked
Yes. NPI 1407541089 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Mental Health Counselor is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (203) 900-1666.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. William Anderson PHD, Jd is a Type-1 individual NPI.
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