Northwestern Medicine
Skip to content
Utility navigation
  • Home
  • MyChart
  • Careers
  • Pay a Bill
  • Financial Assistance
  • For Physicians
  • Northwestern Medicine Newsroom
Northwestern Medicine
Northwestern Medicine
menu
search Search
Clear field
  •  Find Doctors
  • location_on Locations Near You
Main navigation
  • Doctors arrow_drop_down
    Doctors
      • View All Doctors
      Specialties
        • View All Specialties
        Clinical Interests
          • View All Clinical Interests
          • View All Results

          Not sure which doctor you’re looking for?

          View All Doctors
        • Locations
        • Conditions and Care Areas
        • Patients and Visitors
        • Academics
        • Contact Us arrow_drop_down
          • phone
            Northwestern Memorial 312.926.2000
          • phone
            Central DuPage 630.933.1600
          • phone
            Lake Forest 847.234.5600
          • phone
            Delnor 630.208.3000
          • phone
            Kishwaukee 815.756.1521
          • phone
            Valley West 815.786.8484
          • phone
            Marianjoy 630.909.8000
          • Full Directory and Contact Form arrow_forward
        Breadcrumb navigation
        1. Home
        2. Doctors
        3. john j friedewald md
        Close
        Doctors
          • View All Doctors
          Specialties
            • View All Specialties
            Clinical Interests
              • View All Clinical Interests
              • View All Results

              Not sure which doctor you’re looking for?

              View All Doctors
              Healthy Tips E-Newsletter
              e-newsletter sign-up
              Quick Links
              • Careers
              • Emergency and Convenient Care Check-In
              • Classes, Events and Support Groups
              • Medical Records
              About Us
              • History
              • Leadership
              • Awards and Accreditations
              • Financial Statements and Annual Reports
              • Northwestern Medicine Newsroom
              • Community Health Needs Assessment
              • Community Initiatives
              • See all About Us
              Billing and Insurance
              • Billing Questions
              • Financial Assistance
              • Pay a Bill
              • Insurance Information
              • Accepted Insurance Plans
              • See all Billing and Insurance
              For Medical Professionals
              • For Physicians
              • For Nurses
              • For Students
              • See all For Medical Professionals
              Feinberg School of Medicine
              • Student Admissions
              • Education
              • Research
              • Clinical Trials
              • Departments
              • Institutes and Centers
              • See all Feinberg School of Medicine

              Giving Back

              We change and impact lives every day.

              Donate Now Volunteer Your Time

              Classes and Events

              Northwestern Medicine offers a wide range of classes, events and support groups throughout the year – in your local community – to help you live a healthier, happier and more informed life.

              Learn More about Classes and Events

              Physician and Employee Portals

              Gain access to employee portals.

              Employee and Physician Login
              Phone Numbers
              Northwestern Medicine Logo
              call

              Northwestern Memorial

              312.926.2000
              call

              Central DuPage

              630.933.1600
              call

              Lake Forest

              847.234.5600
              call

              Delnor

              630.208.3000
              call

              Kishwaukee

              815.756.1521
              call

              Valley West

              815.786.8484
              call

              Marianjoy

              630.909.8000
              Full Directory and Contact Form
              Additional Footer Links
              Northwestern Medicine Logo
              Social Navigation
              • Facebook
              • Twitter
              • YouTube
              • Instagram
              • LinkedIn
              • Pinterest
              Breakthroughs In Care and Newsroom Navigation
              • Breakthroughs In Care Icon Breakthroughs In Care
              • video_library Video Library
              • chat_bubble_outline Blog
              Utility Navigation
              • Patient Rights and Website Policies
              • Accessibility
              • Site Map

              © 2018 by Northwestern Medicine® and Northwestern Memorial HealthCare.
              Northwestern Medicine® is a trademark of Northwestern Memorial HealthCare, used by Northwestern University.

              Doctor Information
              Breadcrumb navigation
              1. Home
              2. Doctors
              Close

              Rated

              star star_half star_border
              Read Ratings & Reviews

              Doctor Name

              Rated

              star star_half star_border
              Read Ratings & Reviews

              Primary Specialty

              Secondary Specialties

              lense Accepts New Patients
              lense Does Not Schedule or Accept New Patients
              lense; Prefers Referral by Another Physician
              Schedule Appointment Request Appointment
              Send a Message
              Export Profile as PDF
              Watch Video
              Nearest Location
              Address
              ,
              place
              Phone
              Fax f 
              phone Call directions Directions

              Additional Locations

              Map
              Address
              ,
              place
              directions Directions
              See all locations

              Insurances Accepted

              See All Accepted Insurances

              Insurance plans are subject to change. View insurance plans accepted at each hospital.

              Practice Groups and Affiliations

              Medical Group
              Physician Category
              On Medical Staff At

              Biography

              Education

              Medical Education
              Internship
              Residency
              Fellowship

              Board Certifications

              Clinical Interests

              See All Clinical Interests

              Languages Spoken

              See All Languages

              Website

              View Faculty Profile

              Ratings & Reviews

              At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care. Read more about ratings and reiviews

              Care Provider Ratings

              Overall rating

              star star_half star_border

              Reviews From Patients

              Sort By: Newest keyboard_arrow_down
              • Newest
              • Oldest
              • Most Helpful
              • Least Helpful

              Was this helpful? Yes No

              Thanks for your feedback!

              Disclosure

              Read Full Disclosure

              Cornerstone Disclaimer

              Independent Disclaimer

              Healthy Tips E-Newsletter
              e-newsletter sign-up
              Quick Links
              • Careers
              • Emergency and Convenient Care Check-In
              • Classes, Events and Support Groups
              • Medical Records
              About Us
              • History
              • Leadership
              • Awards and Accreditations
              • Financial Statements and Annual Reports
              • Northwestern Medicine Newsroom
              • Community Health Needs Assessment
              • Community Initiatives
              • See all About Us
              Billing and Insurance
              • Billing Questions
              • Financial Assistance
              • Pay a Bill
              • Insurance Information
              • Accepted Insurance Plans
              • See all Billing and Insurance
              For Medical Professionals
              • For Physicians
              • For Nurses
              • For Students
              • See all For Medical Professionals
              Feinberg School of Medicine
              • Student Admissions
              • Education
              • Research
              • Clinical Trials
              • Departments
              • Institutes and Centers
              • See all Feinberg School of Medicine

              Giving Back

              We change and impact lives every day.

              Donate Now Volunteer Your Time

              Classes and Events

              Northwestern Medicine offers a wide range of classes, events and support groups throughout the year – in your local community – to help you live a healthier, happier and more informed life.

              Learn More about Classes and Events

              Physician and Employee Portals

              Gain access to employee portals.

              Employee and Physician Login
              Phone Numbers
              Northwestern Medicine Logo
              call

              Northwestern Memorial

              312.926.2000
              call

              Central DuPage

              630.933.1600
              call

              Lake Forest

              847.234.5600
              call

              Delnor

              630.208.3000
              call

              Kishwaukee

              815.756.1521
              call

              Valley West

              815.786.8484
              call

              Marianjoy

              630.909.8000
              Full Directory and Contact Form
              Additional Footer Links
              Northwestern Medicine Logo
              Social Navigation
              • Facebook
              • Twitter
              • YouTube
              • Instagram
              • LinkedIn
              • Pinterest
              Breakthroughs In Care and Newsroom Navigation
              • Breakthroughs In Care Icon Breakthroughs In Care
              • video_library Video Library
              • chat_bubble_outline Blog
              Utility Navigation
              • Patient Rights and Website Policies
              • Accessibility
              • Site Map

              © 2018 by Northwestern Medicine® and Northwestern Memorial HealthCare.
              Northwestern Medicine® is a trademark of Northwestern Memorial HealthCare, used by Northwestern University.

              Mobile navigation
              • Home
              • Doctors
              • Locations
              • Conditions and Care Areas
              • Patients and Visitors
              • Academics
              • Contact Us
                • phone
                  Northwestern Memorial 312.926.2000
                • phone
                  Central DuPage 630.933.1600
                • phone
                  Lake Forest 847.234.5600
                • phone
                  Delnor 630.208.3000
                • phone
                  Kishwaukee 815.756.1521
                • phone
                  Valley West 815.786.8484
                • phone
                  Marianjoy 630.909.8000
                • arrow_forward Full Directory and Contact Form
              • MyChart
              • Careers
              • Pay a Bill
              • Financial Assistance
              • For Physicians
              • Northwestern Medicine Newsroom