NPPES file of Aug 9, 2026

Brian John O'Neill, APRN, MSN, CCRN-CSC

Adult Health Nurse Practitioner · New Haven, CT

Brian John O'Neill, APRN, MSN, CCRN-CSC is an adult health nurse practitioner with a practice address in New Haven, Connecticut, and NPI 1821011396, issued on Jul 25, 2006. Check the license (Connecticut 002360, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821011396
Name
Brian John O'Neill
Credential
APRN, MSN, CCRN-CSC
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
002360 CT
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 412-6904
Enumerated
Jul 25, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(203) 688-1663
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.
Download card Updates feed

Also registered at 20 York St

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

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Brian John O'Neill 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 002360
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $26.77

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian O'Neill$26.77
  2. Specialty average$946.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Brian John O'Neill among 628 adult health nurse practitioner records in Connecticut

Brian John O'Neill, APRN, MSN, CCRN-CSC is one of 628 adult health nurse practitioner records with a practice address in Connecticut. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 76% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2007 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Connecticut

There are 628 adult health nurse practitioner records in Connecticut.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Jennifer Cannon, NPNew Haven, CT 065101215295407
  2. Kristine Drozd, ANPNew Haven, CT 065101689985715
  3. Emily Duffield, APRNNew Haven, CT 065101750650149
  4. Lisa Fox, APRNNew Haven, CT 065101447577937
  5. Mary Kernan, APRNNew Haven, CT 065101821301458
  6. Julia Maia, NPNew Haven, CT 065101760612162
  7. Patricia Mason, APRNNew Haven, CT 065101386876142
  8. Tara Powers, APRNNew Haven, CT 065101932401379

Common questions

What is Brian John O'Neill, APRN, MSN, CCRN-CSC's NPI number?

Brian John O'Neill, APRN, MSN, CCRN-CSC's National Provider Identifier (NPI) is 1821011396, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian John O'Neill, APRN, MSN, CCRN-CSC located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 412-6904. Providers update this record themselves, so call before visiting.

How can I verify Brian John O'Neill, APRN, MSN, CCRN-CSC's license?

NPPES lists Connecticut license number 002360, 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. Medicare files from data.cms.gov. 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.