What is Margaret Hollar's specialty?

Margaret Hollar (NPI 1376546770) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Indianapolis, IN.

Where does Margaret Hollar practice?

Margaret Hollar practices in Indianapolis, IN, based on the location reported in the CMS Medicare provider datasets for NPI 1376546770.

How much does Medicare pay Margaret Hollar?

Margaret Hollar (NPI 1376546770) received approximately $62K in total Medicare Part B payments, serving 1,109 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1376546770

Margaret HollarDO

Diagnostic RadiologyIndianapolis, INI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,437

Unique beneficiaries

—

Total services

1,472

Distinct HCPCS

Medicare payment

$56K

Peer benchmark

Total Medicare services vs. 553 Diagnostic Radiology providers in IN — below median (cohort median 2,892).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

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 Margaret Hollar'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). 63 inbound referrers · 203 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
INDIANA UNIVERSITY HEALTH INC	535	1,102
INDIANA UNIVERSITY HEALTH BALL MEMORIAL HOSPITAL, INC.	228	398
INDIANA UNIVERSITY HEALTH WEST HOSPITAL INC	207	342
Jeffrey Mossler Internal Medicine · Indianapolis, IN	84	121
Karen Fitzgerald Diagnostic Radiology · Indianapolis, IN	65	93
Atul Agarwal Diagnostic Radiology · Indianapolis, IN	49	57
Amy Rhodes Diagnostic Radiology · Indianapolis, IN	46	60
Andrea Tompkins Diagnostic Radiology · Indianapolis, IN	45	61
Wayne Township Marion Co Office Of Trustee Ambulance Service Provider · Indianapolis, IN	34	39
Sean Gussick Diagnostic Radiology · Indianapolis, IN	33	41
RYDBERG, JONAS	32	46
Delaware County Auditor Ambulance Service Provider · Muncie, IN	29	32

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
INDIANA UNIVERSITY HEALTH INC	271	544
THE HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY	140	254
INDIANA UNIVERSITY HEALTH NORTH HOSPITAL INC	112	164
INDIANA UNIVERSITY HEALTH BALL MEMORIAL HOSPITAL, INC.	89	190
INDIANA UNIVERSITY HEALTH WEST HOSPITAL INC	70	119
Matthew Petersen Diagnostic Radiology · Indianapolis, IN	65	83
Robert Tarver Diagnostic Radiology · Indianapolis, IN	63	115
Delaware County Auditor Ambulance Service Provider · Muncie, IN	61	77
CARE AMBULANCE SERVICE LLC	60	78
Jeffrey Dunkle Diagnostic Radiology · Indianapolis, IN	56	71
Eric Westin Diagnostic Radiology · Indianapolis, IN	50	62
William Gill Cardiology · Indianapolis, IN	48	68

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events