Northwestern Medicine
Skip to content
Utility navigation
  • Home
  • MyChart
  • Careers
  • Pay a Bill
  • Financial Assistance
  • For Physicians
  • Feinberg School of Medicine
  • Newsroom
  • Contact Us
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
        Practice Focus Areas
          • View All Practice Focus Areas
          • View All Results

          Not sure which doctor you’re looking for?

          View All Doctors
        • Locations
        • Conditions and Services
        • Patients and Visitors
        • HealthBeat
        • Clinical Research
        Breadcrumb navigation
        1. Home
        2. Doctors
        3. john j friedewald md
        close
        Doctors
          • View All Doctors
          Specialties
            • View All Specialties
            Practice Focus Areas
              • View All Practice Focus Areas
              • View All Results

              Not sure which doctor you’re looking for?

              View All Doctors

              Doctors by Top Viewed Specialties

              • Cardiology
              • Dermatology
              • Endocrinology
              • Gastroenterology
              • Internal Medicine
              • Neurology
              • Obstetrics and Gynecology
              • Orthopaedic Surgery
              • Psychiatry
              • Urology

              Related Quick Links

              • NM MyChart
              • Request New Patient Appointment
              • Pay a Bill
              • Insurance Information
              • Get a Second Opinion
              • Refer a Patient

              New Patients! Make an appointment online with Open Scheduling.

              Choose dates and times from several of our Family Medicine, Internal Medicine and Pediatric doctors.
              Make an Appointment keyboard_arrow_right
              E-Newsletter
              e-newsletter sign-up
              Quick Links
              • Careers
              • Emergency and Immediate 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
              • Quality
              • See all About Us
              Billing and Insurance
              • Billing Questions
              • Financial Assistance
              • Pay a Bill
              • Insurance Information
              • Accepted Insurance Plans
              • Chargemaster
              • 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 Research
              • 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
              call
              Huntley 224.654.0000
              call
              McHenry 815.344.5000
              call
              Woodstock 815.338.2500
              Full Directory and Contact Form
              Additional Footer Links
              Northwestern Medicine Logo
              Social Navigation
              • Facebook
              • Twitter
              • YouTube
              • Instagram
              • LinkedIn
              • Pinterest
              HealthBeat and Newsroom Navigation
              • video_library Video Library
              • chat_bubble_outline Blog
              Utility Navigation
              • Patient Rights and Policies
              • Accessibility
              • Site Map

              © 2019 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

              Doctor Name

              Rated

              star star_half star_border
              Ratings
              Read Ratings & Reviews

              Primary Specialty

              Secondary Specialties

              lense Accepts New Patients
              lense Does Not Schedule or Accept New Patients
              lense; Requires Referral by Another Physician

              Doctor Name

              Primary Specialty

              Secondary Specialties

              lense Accepts New Patients
              lense Does Not Schedule or Accept New Patients
              lense; Requires Referral by Another Physician
              Schedule Appointment Request Appointment
              Send a Message
              Export Profile as PDF
              Location Locations
              Address
              ,
              place
              Phone
              Fax f 
              phone Call directions Directions
              Map
              Address
              ,
              place
              directions Directions
              See all locations
              Related Article

              arrow_forward Read More

              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

              Practice Focus Areas

              See All Practice Focus Areas

              Languages Spoken

              See All Languages

              Website

              View Faculty Profile

              Ratings & Reviews

              Patient ratings and comments are posted for physicians who see patients in the outpatient setting and have received at least 30 patient experience surveys. A physician will not have ratings or comments available until the minimum number of surveys are received from patients. Physicians will also not be included if their hospital, practice, or department is not yet participating in this initiative. Read more.

              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
              Ratings
              • Rated
                star star_half star_border

              Reviews From Patients

              Reviews
              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

              Independent Disclaimer

              E-Newsletter
              e-newsletter sign-up
              Quick Links
              • Careers
              • Emergency and Immediate 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
              • Quality
              • See all About Us
              Billing and Insurance
              • Billing Questions
              • Financial Assistance
              • Pay a Bill
              • Insurance Information
              • Accepted Insurance Plans
              • Chargemaster
              • 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 Research
              • 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
              call
              Huntley 224.654.0000
              call
              McHenry 815.344.5000
              call
              Woodstock 815.338.2500
              Full Directory and Contact Form
              Additional Footer Links
              Northwestern Medicine Logo
              Social Navigation
              • Facebook
              • Twitter
              • YouTube
              • Instagram
              • LinkedIn
              • Pinterest
              HealthBeat and Newsroom Navigation
              • video_library Video Library
              • chat_bubble_outline Blog
              Utility Navigation
              • Patient Rights and Policies
              • Accessibility
              • Site Map

              © 2019 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 Services
              • Patients and Visitors
              • HealthBeat
              • Clinical Research
              • MyChart
              • Careers
              • Pay a Bill
              • Financial Assistance
              • For Physicians
              • Feinberg School of Medicine
              • Newsroom
              • Contact Us