HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / IL

JAH WON KOO, MD

INTERNAL MEDICINE

Medical school: UNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE

Graduated: 1995

Offers telehealth

NPI: 1235241837

Practice Locations (15)

NORTHWESTERN MEDICAL FACULTY FOUNDATION

1135 S DELANO CT E

CHICAGO, IL 606053457

6309331500

NORTHWESTERN MEDICAL FACULTY FOUNDATION

1135 W DELANO CT, A201

CHICAGO, IL 606053457

3126950665

NORTHWESTERN MEDICAL FACULTY FOUNDATION

1333 W BELMONT AVE

CHICAGO, IL 606575785

NORTHWESTERN MEDICAL FACULTY FOUNDATION

171 N ABERDEEN ST, SUITE 100

CHICAGO, IL 606071669

3129264150

NORTHWESTERN MEDICAL FACULTY FOUNDATION

20 S CLARK, 11TH FLOOR

CHICAGO, IL 606031882

3129266146

NORTHWESTERN MEDICAL FACULTY FOUNDATION

4445 W IRVING PARK RD

CHICAGO, IL 606412808

NORTHWESTERN MEDICAL FACULTY FOUNDATION

635 N DEARBORN ST

CHICAGO, IL 606544618

3129260404

NORTHWESTERN MEDICAL FACULTY FOUNDATION

675 N SAINT CLAIR ST

CHICAGO, IL 606115975

NORTHWESTERN MEDICAL FACULTY FOUNDATION

675 N ST CLAIR

CHICAGO, IL 606115975

NORTHWESTERN MEDICAL FACULTY FOUNDATION

885 ROOSEVELT RD

GLEN ELLYN, IL 601376141

NORTHWESTERN MEDICAL FACULTY FOUNDATION

800 N W MORELAND RD, SUITE 102

LAKE FOREST, IL 600451687

8475822104

NORTHWESTERN MEDICAL FACULTY FOUNDATION

800 N WESTMORELAND RD, SUITE 201

LAKE FOREST, IL 600451687

8475357647

NORTHWESTERN MEDICAL FACULTY FOUNDATION

660 N WESTMORELAND RD, 302 LAKE FOREST OBGYN

LAKE FOREST, IL 600451673

3129266146

NORTHWESTERN MEDICAL FACULTY FOUNDATION

15300 W AVE

ORLAND PARK, IL 604624600

NORTHWESTERN MEDICAL FACULTY FOUNDATION

870 N MILWAUKEE AVE

VERNON HILLS, IL 600611521

Source: CMS National Downloadable File, September 2026.