What is Marc Ellwein's specialty?

Marc Ellwein (NPI 1710914478) is a Medicare-billing provider whose primary specialty is Physician Assistant in Sioux Falls, SD.

Where does Marc Ellwein practice?

Marc Ellwein practices in Sioux Falls, SD, based on the location reported in the CMS Medicare provider datasets for NPI 1710914478.

How much does Medicare pay Marc Ellwein?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Marc Ellwein (NPI 1710914478) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1710914478

Marc Ellwein

Physician AssistantSioux Falls, SDI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

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

No data available for this provider in 2025.

REFERRAL NETWORK

Where Marc Ellwein'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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Melissa Baker Audiologist · Sioux Falls, SD	22	25
Kenneth Scott Otolaryngology · Sioux Falls, SD	13	34

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