What is Margaret O'brien's specialty?

Margaret O'brien (NPI 1023048964) is a Medicare-billing provider whose primary specialty is Anesthesiology in Bryn Mawr, PA.

Where does Margaret O'brien practice?

Margaret O'brien practices in Bryn Mawr, PA, based on the location reported in the CMS Medicare provider datasets for NPI 1023048964.

How much does Medicare pay Margaret O'brien?

Margaret O'brien (NPI 1023048964) received approximately $38K in total Medicare Part B payments, serving 290 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1023048964

Margaret O'brienMD

PRACTICEMAIN LINE HOSPITALS, INC.See all providers at this practice →

AnesthesiologyBryn Mawr, PAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

149

Unique beneficiaries

—

Total services

150

Distinct HCPCS

Medicare payment

$16K

Peer benchmark

Total Medicare services vs. 1,877 Anesthesiology providers in PA — above median (cohort median 246).

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.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 390139

Hospital

REFERRAL NETWORK

Where Margaret O'brien'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). 3 inbound referrers · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
James Carty Ophthalmology · Bryn Mawr, PA	26	64
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	11	12
MAIN LINE HOSPITALS, INC.	11	16

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MAIN LINE HOSPITALS, INC.	78	125
James Carty Ophthalmology · Bryn Mawr, PA	26	103
Edina Grujic Pathology · Wynnewood, PA	11	11

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