AMY RILLO ELLINGSON M.D.
NPI 1417032160
Allergy & Immunology in Willmar, MN
About Amy Rillo Ellingson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY RILLO ELLINGSON M.D. (NPI 1417032160) is an individual allergy & immunology provider in Willmar, Minnesota, licensed in Minnesota (34585) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Avera Marshall Regional Medical Ctr, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Amy Rillo Ellingson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Amy Ellingson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Willmar, MN 56201
- Reassigned Medicare billing, Minnesota enrollment
- 3 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Avera Marshall Regional Medical Ctr
Critical Access Hospitals · Marshall, MNReferred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Amy Ellingson's NPI number?
The NPI number for Amy Ellingson is 1417032160. It was assigned to this individual provider in the NPPES registry on October 25, 2006.
Where is Amy Ellingson located?
Amy Ellingson practices at 1037 19th Ave SW, Willmar, MN 56201. The listed phone number is (320) 214-1100.
What is Amy Ellingson's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Amy Ellingson enrolled in Medicare?
Yes. Amy Ellingson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Amy Ellingson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Ellingson reassigns Medicare benefits to Amy R Ellingson MD PA (Willmar, MN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Amy Ellingson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amy Ellingson accept?
Health plans from Avera Health Plans and Sanford Health Plan list Amy Ellingson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Amy Ellingson affiliated with any hospitals?
According to CMS data, Amy Ellingson is affiliated with Avera Marshall Regional Medical Ctr.
When was this NPI record last updated?
The NPPES record for Amy Ellingson was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.