What is Thomas Nielsen's NPI number?

Thomas Nielsen's National Provider Identifier (NPI) is 1558090340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Nielsen's specialty?

Thomas Nielsen is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Thomas Nielsen located?

Thomas Nielsen's practice location on file with NPPES is 1952 Mcdowell Rd, Naperville, IL 60563.

What is Thomas Nielsen's phone number?

The practice phone number listed in the NPPES registry for Thomas Nielsen is (630) 689-1022.

Is Thomas Nielsen's NPI active?

Yes — Thomas Nielsen's NPI (1558090340) is active in the NPPES registry as of the last update on 2022-06-07.

IndividualActive

Thomas Nielsen

NPI 1558090340 · Psychologist · Naperville, IL

Thomas Nielsen is a Psychologist provider in Naperville, IL (NPI 1558090340).

Provider details

NPI number: 1558090340
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

PsychologistPrimary103T00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
4 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

1952 Mcdowell Rd

Suite 305

Naperville, IL 60563

Phone: (630) 689-1022

Street-level locationGet directions

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Mailing address