NPPES file of Aug 9, 2026

Jennifer Anne Nielsen, PSYD

Psychologist · Darien, CT

Jennifer Anne Nielsen, PSYD is a psychologist with a practice address in Darien, Connecticut, and NPI 1629587258, issued on Sep 26, 2017. Check the license (Connecticut 3664, as entered in NPPES) with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629587258
Name
Jennifer Anne Nielsen
Credential
PSYD
Primary taxonomy
Psychologist 103T00000X
License number
3664 CT
Self-reported in NPPES; status is on the state search
Practice location
77 Linden Ave, Darien, CT 06820
Phone
(203) 636-0122
Enumerated
Sep 26, 2017
Record last updated
Jul 21, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Jennifer Anne Nielsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 3664    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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15 psychologist records list a practice address in Darien

They are 15 of the 380 NPPES records with a practice address in Darien, and 649 psychologist records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 15 in Darien → All 649 in Connecticut → Every provider in Darien →

Other psychologist records in Connecticut

  1. David Abrams, PSY.D.Guilford, CT1427231752
  2. Joshua Acocella-Stollerman, PSY.D.East Haddam, CT1043515356
  3. Harry Adamakos, PH.D.Bridgeport, CT1225172786
  4. Ragne Adams, M. A.New Haven, CT1922260306
  5. Thomas Adams, PHDNew Haven, CT1639683188
  6. Jessica Addington, PSY.D.Glastonbury, CT1881817013
  7. Frederic Agate, PHDDarien, CT1699501353
  8. Rosemary AielloPlainville, CT1649318304
  9. Maysa AkbarNew Haven, CT1720056864
  10. Eguono Akpoduado, PSY.D.Groton, CT1245956978

Common questions

What is Jennifer Anne Nielsen, PSYD's NPI number?

Jennifer Anne Nielsen, PSYD's National Provider Identifier (NPI) is 1629587258, issued on Sep 26, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Anne Nielsen, PSYD located?

The NPPES record lists a practice address at 77 Linden Ave, Darien, CT, 06820. Phone: (203) 636-0122. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Anne Nielsen, PSYD's license?

NPPES lists Connecticut license number 3664, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.