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JUSTIN CHACKO MD
NPI 1750022992
Emergency Medicine in Oak Lawn, IL

Active since April 03, 2022PECOS EnrolledAccepts Medicare Assignment
4440 W 95TH ST, OAK LAWN, IL 60453(708) 684-5375 Get Directions Write a Review

NPPES record last updated: July 25, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Justin Chacko Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JUSTIN CHACKO MD (NPI 1750022992) is an individual emergency medicine provider in Oak Lawn, Illinois, licensed in Illinois (036162304) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Uw Health, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1750022992
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJUSTIN CHACKOCredential: MD
Location Address4440 W 95TH STOak Lawn, IL 60453-2600
Mailing Address4440 W 95th StOak Lawn, IL 60453-2600 · (708) 684-5375
Phone(708) 684-5375
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 3, 2022
Last NPPES UpdateJuly 25, 2025
NPPES CertifiedJuly 25, 2025
✔ NPI 1750022992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IL · 036162304
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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
4440 W 95TH ST, Oak Lawn, IL 60453
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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

Justin Chacko 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 ID4789192204
PECOS Enrollment IDI20250805001705
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Justin Chacko reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Belvidere Emergency Physicians, LLC
69 mi
Emergency Medicine
1625 S STATE ST
Belvidere, IL 61008
  • Reassigned Medicare billing, Illinois enrollment
  • 90 clinicians in this Medicare group
NPI 1306543319 (815) 547-5441
Rockford Emergency Physicians, LLC
79 mi
Emergency Medicine
1401 E STATE ST
Rockford, IL 61104
  • Reassigned Medicare billing, Illinois enrollment
  • 106 clinicians in this Medicare group
NPI 1639876634 (779) 696-4400

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.

Uw Health

Acute Care Hospitals · Rockford, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140228
Location1401 East State StreetRockford, IL 61104 · Winnebago County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 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.

DR. MARK ADRIAN FAASSE MD
Urology
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-4557
DR. MANDY LUMA ENSHIWAT M.D.
Internal Medicine
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-8000
DR. KIM MARIE MIILLER MA, PSYD
Psychologist (Clinical)
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-7482
JENNIFER MARSIGLIO
Occupational Therapist (Physical Rehabilitation)
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-5425
TRACI LYNN TAGUE MA, CCC-SLP
Speech-Language Pathologist
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-1989
ELIZABETH A FOLLIARD OTR/L
Occupational Therapist
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-5369
MICHAEL CIRONE M.D.
Emergency Medicine
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (708) 684-5375
ANNA MANILLA
Speech-Language Pathologist
4440 W 95TH ST
OAK LAWN, IL 60453
Cook County (248) 701-7523

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 Justin Chacko's NPI number?

The NPI number for Justin Chacko is 1750022992. It was assigned to this individual provider in the NPPES registry on April 3, 2022.

Where is Justin Chacko located?

Justin Chacko practices at 4440 W 95th St, Oak Lawn, IL 60453. The listed phone number is (708) 684-5375.

What is Justin Chacko's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Justin Chacko enrolled in Medicare?

Yes. Justin Chacko 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 Justin Chacko's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Chacko reassigns Medicare benefits to 2 organizations: Belvidere Emergency Physicians, LLC (Belvidere, IL) and Rockford Emergency Physicians, LLC (Rockford, IL). 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 Justin Chacko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Justin Chacko affiliated with any hospitals?

According to CMS data, Justin Chacko is affiliated with Uw Health.

When was this NPI record last updated?

The NPPES record for Justin Chacko was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.