What is Margaret Shimkus's specialty?

Margaret Shimkus (NPI 1669487377) is a Medicare-billing provider whose primary specialty is Nurse Practitioner in Grand Rapids, MI.

Where does Margaret Shimkus practice?

Margaret Shimkus practices in Grand Rapids, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1669487377.

How much does Medicare pay Margaret Shimkus?

Margaret Shimkus (NPI 1669487377) received approximately $13K in total Medicare Part B payments, serving 104 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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 · 2025

Total received

$16

Payment records

By payment type

Food and Beverage$16

Top paying entities

Food and Beverage$16

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 230038

Hospital

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events