What is John Merchun's specialty?

John Merchun (NPI 1851325971) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Greenville, MI.

Where does John Merchun practice?

John Merchun practices in Greenville, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1851325971.

How much does Medicare pay John Merchun?

John Merchun (NPI 1851325971) received approximately $72K in total Medicare Part B payments, serving 2,056 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851325971

John MerchunMD

Diagnostic RadiologyGreenville, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,457

Unique beneficiaries

—

Total services

2,649

Distinct HCPCS

Medicare payment

$64K

Peer benchmark

Total Medicare services vs. 1,052 Diagnostic Radiology providers in MI — above median (cohort median 1,966).

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 John Merchun'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). 156 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SPECTRUM HEALTH UNITED	1,430	3,343
Theresa Osborne Internal Medicine · Grand Rapids, MI	211	284
SPECTRUM HEALTH PRIMARY CARE PARTNERS	190	233
Kevin Reed Internal Medicine · Greenville, MI	183	524
DUBOIS MEDICAL ENTERPRISES PC	119	241
Kaushal Kalra Family Practice · Memphis, TN	97	281
Craig White Family Practice · Greenville, MI	97	283
CRITTENDEN MD, DAVID	91	286
County Of Montcalm Ambulance Service Provider · Stanton, MI	85	132
NPI 1336137389	84	244
Jason Bowman Emergency Medicine · Grand Rapids, MI	84	110
ZEELAND COMMUNITY HOSPITAL	76	128

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