What is Ross Ondersma's specialty?

Ross Ondersma (NPI 1841403110) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Lynnwood, WA.

Where does Ross Ondersma practice?

Ross Ondersma practices in Lynnwood, WA, based on the location reported in the CMS Medicare provider datasets for NPI 1841403110.

How much does Medicare pay Ross Ondersma?

Ross Ondersma (NPI 1841403110) received approximately $564K in total Medicare Part B payments, serving 2,325 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1841403110

Ross OndersmaMD

Diagnostic RadiologyLynnwood, WAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,306

Unique beneficiaries

—

Total services

2,674

Distinct HCPCS

Medicare payment

$534K

Peer benchmark

Total Medicare services vs. 769 Diagnostic Radiology providers in WA — below median (cohort median 3,244).

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 Ross Ondersma'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). 159 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CLALLAM COUNTY PUBLIC HOSPITAL DISTRICT 2	3,420	11,819
JAMESTOWN S'KLALLAM TRIBE	579	1,283
Michael Fishman Diagnostic Radiology · Lynnwood, WA	453	1,022
OLYMPIC AMBULANCE SERVICE INC.	321	715
Edward Sessions Diagnostic Radiology · Lynnwood, WA	292	698
FAMILY MEDICINE OF PORT ANGELES PLLC	235	519
Northwest Pathology Pllc Clinical Laboratory · Bellingham, WA	210	591
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Seattle, WA	179	346
JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2	168	429
KING COUNTY PUBLIC HOSPITAL DISTRICT NO. 2	168	416
Mark Fischer Internal Medicine · Port Angeles, WA	157	585
City Of Port Angeles Ambulance Service Provider · Port Angeles, WA	126	219

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