NPPES file of Aug 9, 2026

Lianna Dimmock, FNP

Family Nurse Practitioner · Norwalk, CT

Lianna Dimmock, FNP is a family nurse practitioner with a practice address in Norwalk, Connecticut, and NPI 1033916861, issued on Feb 28, 2025. Check the license (Connecticut 14510, 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
1033916861
Name
Lianna Dimmock
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
14510 CT
Self-reported in NPPES; status is on the state search
Practice location
761 Main Ave Bldg A, Norwalk, CT 06851
Phone
(203) 810-4151
Enumerated
Feb 28, 2025
Record last updated
Nov 29, 2025
Medicare enrollment
Enrolled (PECOS I20260130001520); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 761 Main Ave Bldg A

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ilena Kisciras, NPFamily Nurse Practitioner1518737816
  2. Laura RitterFamily Nurse Practitioner1457067944

Verify Lianna Dimmock 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 14510
    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

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Lianna Dimmock among 2,669 family nurse practitioner records in Connecticut

Lianna Dimmock, FNP is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 92% of them.

  • NPI issued2025 · 92% of these records are older, 3% newer
  • In a Medicare fileNo · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2024 · median 2018 among the 1,664 with a school on file
  • Record last updated2025 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 family nurse practitioner records list a practice address in Norwalk

They are 54 of the 1,993 NPPES records with a practice address in Norwalk, and 2,669 family nurse practitioner records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Cindy Barboza, APRNNorwalk, CT 068511528499951
  2. Juliana Barresi, NPNorwalk, CT 068511922554229
  3. Michael Cicirelli, APRNNorwalk, CT 068511518336163
  4. Mary Durand, APRNNorwalk, CT 068511588632665
  5. Linda Ferro, APRNNorwalk, CT 068511538238522
  6. Mary Beth Fessler, APRNNorwalk, CT 068511942281282
  7. Nicole Guanco-Murphy, APRNNorwalk, CT 068511871851311
  8. Rebecca Kessel, NPNorwalk, CT 068511396275640

Common questions

What is Lianna Dimmock, FNP's NPI number?

Lianna Dimmock, FNP's National Provider Identifier (NPI) is 1033916861, issued on Feb 28, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Lianna Dimmock, FNP located?

The NPPES record lists a practice address at 761 Main Ave Bldg A, Norwalk, CT, 06851. Phone: (203) 810-4151. Providers update this record themselves, so call before visiting.

How can I verify Lianna Dimmock, FNP's license?

NPPES lists Connecticut license number 14510, 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.

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.