What is John Halloran's specialty?

John Halloran (NPI 1821044587) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Waterloo, IA.

Where does John Halloran practice?

John Halloran practices in Waterloo, IA, based on the location reported in the CMS Medicare provider datasets for NPI 1821044587.

How much does Medicare pay John Halloran?

John Halloran (NPI 1821044587) received approximately $32K in total Medicare Part B payments, serving 893 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1821044587

John HalloranMD

PRACTICEALLEN MEMORIAL HOSPITALSee all providers at this practice →

Diagnostic RadiologyWaterloo, IAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

932

Unique beneficiaries

—

Total services

946

Distinct HCPCS

Medicare payment

$25K

Peer benchmark

Total Medicare services vs. 239 Diagnostic Radiology providers in IA — bottom quintile (cohort median 4,062).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

81.6

Quality

83.7

Cost

69.2

Improvement activities

40.0

Promoting interop.

83.0

Payment adjustment

0.28%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$139

Payment records

By payment type

Food and Beverage$139

Top paying entities

Food and Beverage$139

REFERRAL NETWORK

Where John Halloran'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). 137 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ALLEN MEMORIAL HOSPITAL CORPORATION	1,930	7,450
SURNEDI, MURALI	246	732
Charles Heggen Diagnostic Radiology · Clive, IA	218	690
LIEBSCHER, LAWRENCE	179	505
Pratibha Dua Internal Medicine · Waterloo, IA	174	678
Joud Dib Cardiology · Waterloo, IA	167	478
Ameer Almullahassani Neurology · Fairfield, CA	156	440
Stacey Marlow Fisher Emergency Medicine · Waterloo, IA	149	502
SUNDARAM, KALYANA	146	395
Vara Venkata Padma Ponnada Internal Medicine · Waterloo, IA	142	401
RAECKER, GREG	140	396
Pradeep Ramesh Internal Medicine · Waterloo, IA	137	512

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