PROVIDER PROFILE · NPI 1881856888

Robert WierengaMD

Emergency MedicineKalamazoo, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$2K

Peer benchmark

Total Medicare services vs. 2,370 Emergency Medicine providers in MI — bottom quintile (cohort median 308).

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 Robert Wierenga'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). 33 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MYMICHIGAN MEDICAL CENTER ALMA	344	1,188
Daniel Spear Diagnostic Radiology · Grand Rapids, MI	146	271
Mobile Medical Response Inc Ambulance Service Provider · Saginaw, MI	138	363
COMMUNITY HEALTH CENTER OF BRANCH COUNTY	109	386
Johannes Buiteweg Diagnostic Radiology · Alma, MI	90	169
GELLMAN, STEVEN	48	77
Matthew Wilson Physician Assistant · Howell, MI	38	43
Abraham Krepostman Cardiology · Alma, MI	38	86
Ronald Gibson Internal Medicine · Coldwater, MI	33	95
EDWARD W SPARROW HOSPITAL ASSOCIATION	32	91
Sudeep Mohan Cardiology · Alma, MI	32	77
NPI 1023046745	32	70

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