AARON MICHAEL FLEMING MD
NPI 1457972986
Emergency Medicine in Springfield, IL
About Aaron Michael Fleming Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON MICHAEL FLEMING MD (NPI 1457972986) is an individual emergency medicine provider in Springfield, Illinois, licensed in Illinois (036164557) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, is affiliated with Decatur Memorial Hospital, and is a graduate of Southern Illinois University School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
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
Aaron Michael Fleming Md 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 Aaron Fleming reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Springfield, IL 62781
- Reassigned Medicare billing, Illinois enrollment
- 141 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 4
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Decatur Memorial Hospital
Acute Care Hospitals · Decatur, ILMemorial Medical Center
Acute Care Hospitals · Springfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62781 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, IL 62781
SPRINGFIELD, IL 62781
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 Aaron Fleming's NPI number?
The NPI number for Aaron Fleming is 1457972986. It was assigned to this individual provider in the NPPES registry on May 6, 2020.
Where is Aaron Fleming located?
Aaron Fleming practices at 701 N 1st St, Springfield, IL 62781. The listed phone number is (217) 788-3156.
What is Aaron Fleming's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Aaron Fleming enrolled in Medicare?
Yes. Aaron Fleming 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 Aaron Fleming's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Fleming reassigns Medicare benefits to Midwest Emergency Department Specialists Ltd (Springfield, IL). 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 Aaron Fleming's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Aaron Fleming affiliated with any hospitals?
According to CMS data, Aaron Fleming is affiliated with Decatur Memorial Hospital and Memorial Medical Center.
When was this NPI record last updated?
The NPPES record for Aaron Fleming was last updated on June 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Aaron Michael Fleming, MD · NPI 1457972986
Emergency Medicine physician in Springfield, Illinois. Individual provider, active in the CMS NPPES registry since May 6, 2020.
## Identity
- **NPI:** 1457972986 (Entity type: Individual)
- **Enumerated:** May 6, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036164557 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 N 1ST ST, Springfield, IL 62781-3757
- **Phone:** (217) 788-3156
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Midwest Emergency Department Specialists Ltd (NPI 1245263367, Springfield, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern Illinois University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** June 26, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1457972986) · Data from the CMS NPPES public registry.