What is Marguerite Mcdonald's specialty?

Marguerite Mcdonald (NPI 1356348452) is a Medicare-billing provider whose primary specialty is Ophthalmology in Oceanside, NY.

Where does Marguerite Mcdonald practice?

Marguerite Mcdonald practices in Oceanside, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1356348452.

How much does Medicare pay Marguerite Mcdonald?

Marguerite Mcdonald (NPI 1356348452) received approximately $267K in total Medicare Part B payments, serving 1,097 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1356348452

Marguerite McdonaldM.D.

OphthalmologyOceanside, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,572

Unique beneficiaries

—

Total services

4,410

Distinct HCPCS

Medicare payment

$246K

Peer benchmark

Total Medicare services vs. 1,438 Ophthalmology providers in NY — top quintile (cohort median 1,869).

PRESCRIBING · PART D · 2024

Total Rx claims

3,824

Beneficiaries

—

Total drug cost

$3.0M

Distinct drugs

Brand share

63.5%

Top prescribed drugs

Erythromycin Base875 claims

Lifitegrast477 claims

Cyclosporine427 claims

Bepotastine Besilate265 claims

Latanoprost197 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$129K

Payment records

178

By payment type

Consulting Fee$73K

Compensation for serving as faculty or as a speaker for a medical education program$34K

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$12K

Food and Beverage$7K

Travel and Lodging$4K

Top paying entities

Consulting Fee$73K

Compensation for serving as faculty or as a speaker for a medical education program$34K

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$12K

Food and Beverage$7K

Travel and Lodging$4K

REFERRAL NETWORK

Where Marguerite Mcdonald'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). 6 inbound referrers · 13 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	55	206
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	40	77
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	21	40
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	16	28
NYU LANGONE HOSPITALS	16	82
NORTH SHORE UNIVERSITY HOSPITAL	13	31

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	62	186
Island Eye Surgicenter Llc Ambulatory Surgical Center · Westbury, NY	31	90
Ronald Caronia Ophthalmology · Oceanside, NY	26	49
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	25	74
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	24	40
MERCY MEDICAL CENTER	16	23
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	15	27
Glenn Stoller Ophthalmology · Rockville Centre, NY	15	33
NORTH SHORE UNIVERSITY HOSPITAL	14	23
NYU LANGONE HOSPITALS	14	91
SOUTH NASSAU COMMUNITIES HOSPITAL	14	21
Quest Diagnostics Incorporated Clinical Laboratory · Clifton, NJ	13	39

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