What is Jennifer Nielsen's NPI number?

Jennifer Nielsen's National Provider Identifier (NPI) is 1629587258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jennifer Nielsen's specialty?

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

Where is Jennifer Nielsen located?

Jennifer Nielsen's practice location on file with NPPES is 77 Linden Ave, Darien, CT 06820-5136.

What is Jennifer Nielsen's phone number?

The practice phone number listed in the NPPES registry for Jennifer Nielsen is (203) 636-0122.

Is Jennifer Nielsen's NPI active?

Yes — Jennifer Nielsen's NPI (1629587258) is active in the NPPES registry as of the last update on 2022-07-21.

IndividualActive

Jennifer Nielsen, PSYD

NPI 1629587258 · Psychologist · Darien, CT

Jennifer Nielsen, PSYD is a Psychologist provider in Darien, CT (NPI 1629587258).

Provider details

NPI number: 1629587258
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PSYD
Sex: Female
Sole proprietor: No
License: 3664 (CT)

Practice location

77 Linden Ave

Darien, CT 06820-5136

Phone: (203) 636-0122

Street-level locationGet directions

More CT providers

Mailing address

77 Linden Ave

Darien, CT 06820-5136

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 3664 (CT)
Behavioral Health & Social Service Providers

Profile Score

Established profile(70/100 index)

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

Registry tenure38% of score
9 yrs in NPPES registry
Profile completeness38% of score
100% 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.

Enumerated: 2017-09-26
Last updated: 2022-07-21

Frequently asked questions

What is Jennifer Nielsen's NPI number?: Jennifer Nielsen's National Provider Identifier (NPI) is 1629587258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Jennifer Nielsen's specialty?: Jennifer Nielsen is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
Where is Jennifer Nielsen located?: Jennifer Nielsen's practice location on file with NPPES is 77 Linden Ave, Darien, CT 06820-5136.
What is Jennifer Nielsen's phone number?: The practice phone number listed in the NPPES registry for Jennifer Nielsen is (203) 636-0122.
Is Jennifer Nielsen's NPI active?: Yes — Jennifer Nielsen's NPI (1629587258) is active in the NPPES registry as of the last update on 2022-07-21.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions