MATTHEW D HEFFERNAN MD
NPI 1427568278
Emergency Medicine in Chicago, IL
About Matthew D Heffernan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW D HEFFERNAN MD (NPI 1427568278) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (036174376) and active in the NPI registry since October 2017. He is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Matthew D Heffernan 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 Reassignments
4Medicare enrollment records show Matthew Heffernan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 1,905 clinicians in this Medicare group
Chicago, IL 60637
- Reassigned Medicare billing, Illinois enrollment
- 2,237 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Beloit, WI 53511
- Reassigned Medicare billing, Wisconsin enrollment
- 110 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 3
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.
The University Of Chicago Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 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.
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 Matthew Heffernan's NPI number?
The NPI number for Matthew Heffernan is 1427568278. It was assigned to this individual provider in the NPPES registry on October 6, 2017.
Where is Matthew Heffernan located?
Matthew Heffernan practices at 211 E Ontario St Ste 200, Chicago, IL 60611. The listed phone number is (312) 694-7000.
What is Matthew Heffernan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Matthew Heffernan enrolled in Medicare?
Yes. Matthew Heffernan 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 organizations bill Medicare for Matthew Heffernan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Heffernan reassigns Medicare benefits to 4 organizations: The University Of Chicago Medical Center (Chicago, IL), University Of Chicago (Chicago, IL), Northwestern Medical Faculty Foundation (Carol Stream, IL) and Southern Wisconsin Emergency Associates Sc (Beloit, WI). Each 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 Matthew Heffernan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Heffernan accept?
Health plans from Group Health Cooperative-SCW list Matthew Heffernan 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 Matthew Heffernan affiliated with any hospitals?
According to CMS data, Matthew Heffernan is affiliated with The University Of Chicago Medical Center.
When was this NPI record last updated?
The NPPES record for Matthew Heffernan was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Matthew D Heffernan, MD · NPI 1427568278
Emergency Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since October 6, 2017.
## Identity
- **NPI:** 1427568278 (Entity type: Individual)
- **Enumerated:** October 6, 2017
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036174376 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 211 E ONTARIO ST STE 200, Chicago, IL 60611-3284
- **Phone:** (312) 694-7000 · **Fax:** (312) 926-6274
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): The University Of Chicago Medical Center (NPI 1033218128, Chicago, IL); University Of Chicago (NPI 1821048786, Chicago, IL); Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL); Southern Wisconsin Emergency Associates Sc (NPI 1568538189, Beloit, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 2021
## Record status
- **NPPES last updated:** August 28, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1427568278) · Data from the CMS NPPES public registry.