PROVIDER PROFILE · NPI 1669487377

Margaret ShimkusNP

Nurse PractitionerGrand Rapids, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

130

Unique beneficiaries

—

Total services

192

Distinct HCPCS

Medicare payment

$12K

Peer benchmark

Total Medicare services vs. 5,391 Nurse Practitioner providers in MI — above median (cohort median 188).

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

Total received

$25

Payment records

By payment type

Food and Beverage$25

REFERRAL NETWORK

Where Margaret Shimkus'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Robert Selfe Internal Medicine · Grand Rapids, MI	40	61
Nathan Pomeroy Endocrinology · Grand Rapids, MI	36	50
Christopher Buchach Diagnostic Radiology · Grand Rapids, MI	26	49
Craig Moore Diagnostic Radiology · Grand Rapids, MI	25	31
QUICK, JOHN	23	40
Erin Lee Physician Assistant · Grand Rapids, MI	23	27
James Larson Diagnostic Radiology · Grand Rapids, MI	19	31
LUTTENTON, CHARLES	19	29
Andrew Shin Diagnostic Radiology · Grand Rapids, MI	18	34
SPECTRUM HEALTH PRIMARY CARE PARTNERS	16	20
Rebecca Raab Physician Assistant · Grand Rapids, MI	15	19
Wissam Abdallah Cardiology · Grand Rapids, MI	14	27

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