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