Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATTHEW D HEFFERNAN MD
NPI 1427568278
Emergency Medicine in Chicago, IL

Active since October 06, 2017PECOS Enrolled
211 E ONTARIO ST STE 200, CHICAGO, IL 60611(312) 694-7000(312) 926-6274 Get Directions Write a Review

NPPES record last updated: August 28, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 28, 2026, Aug 6, 2025, Jun 16, 2025 and 2 more (5 updates tracked since 2023).

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

NPI1427568278
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMATTHEW D HEFFERNANCredential: MD
Location Address211 E ONTARIO ST STE 200Chicago, IL 60611-3284
Mailing Address150 Harvester Dr Ste 300Burr Ridge, IL 60527-5965
Fax(312) 926-6274
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2021
Enumeration DateOctober 6, 2017
Last NPPES UpdateAugust 28, 20265 updates tracked since enumeration
NPPES CertifiedAugust 28, 2026
NPI 1427568278 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses Licensed in IL · 036174376 Licensed in WI · 81921-20
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedEmergency Medicine · Emergency Medical ServicesTaxonomy 207PE0004X · License 036174376 (IL)
211 E ONTARIO ST STE 200, Chicago, IL 60611

Secondary Practice Locations 2

Location 1600 Highland AveMadison, WI 53792-0001 · Phone (608) 263-3258 · Fax (608) 262-7928
Location 25841 S Maryland Ave # Mc5068Chicago, IL 60637-1443 · Phone (773) 702-9500 · Fax (773) 702-3135

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID749684355
PECOS Enrollment IDI20250818002574
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
90 services86 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
43 services40 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
25 services25 patients

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, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Physician 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.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Emergency Medicine
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Emergency Medicine
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Physician Assistant
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Emergency Medicine
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Emergency Medicine
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Emergency Medicine
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Physician Assistant
211 E ONTARIO ST STE 200
CHICAGO, IL 60611
Physician Assistant
211 E ONTARIO ST STE 200
CHICAGO, IL 60611

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.

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 16 days 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.