Brian O'Neill, APRN, MSN, CCRN-CSC
NPI 1821011396 · Adult Health Nurse Practitioner · New Haven, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian O'Neill, APRN, MSN, CCRN-CSC is a Adult Health Nurse Practitioner provider in New Haven, CT (NPI 1821011396).
Provider details
- NPI number
- 1821011396
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, MSN, CCRN-CSC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 002360 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2007-07-09
Frequently asked questions
- What is Brian O'Neill's NPI number?
- Brian O'Neill's National Provider Identifier (NPI) is 1821011396, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian O'Neill's specialty?
- Brian O'Neill is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Brian O'Neill located?
- Brian O'Neill's practice location on file with NPPES is 20 York St, New Haven, CT 06510-3220.
- What is Brian O'Neill's phone number?
- The practice phone number listed in the NPPES registry for Brian O'Neill is (203) 412-6904.
- Does Brian O'Neill accept Medicare?
- Brian O'Neill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian O'Neill's NPI active?
- Yes — Brian O'Neill's NPI (1821011396) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.