Sonja Halverson LCSW
About this NPIWhat this record shows.
NPI 1740966555 is registered to Sonja Halverson LCSW, a Clinical Social Worker practising at 115 N 7th St Ste 6 in Spearfish, South Dakota. Clinical Social Worker is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Sonja Halverson LCSW has been enumerated in the National Provider Identifier (NPI) registry since 2023.
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
- 3007730SD
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20240604003951Clinical Social WorkerSD
Source: CMS PECOS public enrollment file.
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 Sonja Halverson LCSW accepts. To confirm in-network status with your specific health plan, contact Sonja Halverson LCSW directly at (605) 645-0100.
Frequently asked
Yes. NPI 1740966555 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Clinical Social Worker 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 (605) 645-0100.
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. Sonja Halverson LCSW is a Type-1 individual NPI.