AARON ALLEN HART M.D.
NPI 1073993861
Internal Medicine in Chicago, IL
About Aaron Allen Hart M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON ALLEN HART M.D. (NPI 1073993861) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036149711) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains a secondary practice location in Chicago.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Aaron Allen Hart 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 Aaron Hart reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60622
- Reassigned Medicare billing, Illinois enrollment
- 383 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60622 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.
CHICAGO, IL 60622
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 Hart's NPI number?
The NPI number for Aaron Hart is 1073993861. It was assigned to this individual provider in the NPPES registry on June 5, 2015.
Where is Aaron Hart located?
Aaron Hart practices at 2418 W Division St, Chicago, IL 60622. The listed phone number is (312) 666-3494.
What is Aaron Hart's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Aaron Hart enrolled in Medicare?
Yes. Aaron Hart 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 Hart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Hart reassigns Medicare benefits to Erie Family Health Center Inc (Chicago, 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 Hart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aaron Hart accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Aaron Hart 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 Aaron Hart affiliated with any hospitals?
According to CMS data, Aaron Hart is affiliated with Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Aaron Hart was last updated on August 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.