Dr. Gregory Williams PSY.D.
About this NPIWhat this record shows.
NPI 1326139361 is registered to Dr. Gregory Williams PSY.D., a Clinical Psychologist practising at 2118 Caton Way Sw in Olympia, Washington. Clinical Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Gregory Williams PSY.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Beyond the registryWhat this record adds.
This record carries 3 secondary identifiers beyond the base NPI: Medicaid and other payer cross-references used by billers and credentialers, which the standard CMS NPPES lookup does not surface. Within the directory it is one of 1,926 Clinical Psychologist providers on file in Washington.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 7119985WA
Other
- 0178084WA· Issued by L & I
- 1026WIWA· Issued by REGENCE RIDER
Source: NPPES public registry.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Gregory Williams PSY.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Gregory Williams PSY.D. directly at (360) 754-4662.
Frequently asked
Yes. NPI 1326139361 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical Psychologist 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 (360) 754-4662.
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. Gregory Williams PSY.D. is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 1,926 Clinical Psychologist providers are registered in Washington, and Dr. Gregory Williams PSY.D. is one of them. The figure refreshes each month from the federal source.