What is Darren O'neill's specialty?

Darren O'neill (NPI 1861434607) is a Medicare-billing provider whose primary specialty is Internal Medicine in Enfield, CT.

Where does Darren O'neill practice?

Darren O'neill practices in Enfield, CT, based on the location reported in the CMS Medicare provider datasets for NPI 1861434607.

How much does Medicare pay Darren O'neill?

Darren O'neill (NPI 1861434607) received approximately $322K in total Medicare Part B payments, serving 746 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861434607

Darren O'neillM.D.

PRACTICEPIONEER VALLEY CARDIOLOGY ASSOCIATES ,INC.See all providers at this practice →

Internal MedicineEnfield, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,891

Unique beneficiaries

—

Total services

4,541

Distinct HCPCS

Medicare payment

$314K

Peer benchmark

Total Medicare services vs. 1,650 Internal Medicine providers in CT — top quintile (cohort median 549).

PRESCRIBING · PART D · 2024

Total Rx claims

18,125

Beneficiaries

—

Total drug cost

$1.6M

Distinct drugs

179

Brand share

21.4%

Top prescribed drugs

Atorvastatin Calcium1,198 claims

Amlodipine Besylate785 claims

Omeprazole723 claims

Lisinopril703 claims

Gabapentin477 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Darren O'neill's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 18 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BAYSTATE MEDICAL CENTER INC	114	641
THE MERCY HOSPITAL INC	53	291
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	47	311
Lawrence Goodman Diagnostic Radiology · Springfield, MA	24	91
BRODER, MARTIN	21	70
Michael Swirsky Diagnostic Radiology · Springfield, MA	18	49
Christopher Moore Diagnostic Radiology · Springfield, MA	17	55
Amy Oliveira Diagnostic Radiology · Cambridge, MA	15	43
Karen Krustapentus Nurse Practitioner · Enfield, CT	13	35
Katarzyna Lameka Diagnostic Radiology · New York, NY	13	55
John Zeroogian Gastroenterology · Pasadena, CA	13	70
Thenu Manikantan Pain Management · East Longmeadow, MA	13	97

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history