Thomas Nielsen
About this NPIWhat this record shows.
NPI 1558090340 is registered to Thomas Nielsen, a Psychologist practising at 1952 Mcdowell Rd, Suite 305 in Naperville, Illinois. Psychologist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Thomas Nielsen has been enumerated in the National Provider Identifier (NPI) registry since 2022.
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 Thomas Nielsen accepts. To confirm in-network status with your specific health plan, contact Thomas Nielsen directly at (630) 689-1022.
Frequently asked
Yes. NPI 1558090340 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
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 (630) 689-1022.
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. Thomas Nielsen is a Type-1 individual NPI.