Dr. William Bayer, MD

Endocrinology, Diabetes & Metabolism*•Male•Age 64

Endocrinology, Diabetes & Metabolism*

Dr. William Bayer, MD is a diabetes & metabolism endocrinologist in Bloomingdale, IL and has over 35 years of experience in the medical field. Dr. Bayer has extensive experience in Metabolic Disorders, Diabetes & Glucose Monitoring, and Osteoporosis & Screening. He graduated from Loyola University Chicago Stritch School of Medicine in 1986. He is affiliated with medical facilities Edward Hospital-Main Campus and Northwestern Medicine Central Dupage Hospital. He is accepting new patients and telehealth appointments.

Dr. William Bayer, MD

Northwestern Medicine Regional Medical Group

233 S Gary Ave # 204 Bloomingdale, IL 60108
Telehealth availableTelehealth services available
(630) 208-6775
Telehealth availableTelehealth services available
|

Accepting new patients

(630) 208-6775

Hospital Highlight

Dr. Bayer is affiliated with Northwestern Medicine Central Dupage Hospital Winfield, a highly rated hospital.

At a Glance

  • Areas of Expertise
    Dr. Bayer specializes in the areas of Diabetes, Metabolism & Endocrinology & Internal Medicine. • See board certifications
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. • See hospitals
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Dr. Bayer's Reviews

Likelihood to recommend Dr. Bayer

3.6

34 ratings, 17 with a written review
5 Star
62%
62%
4 Star
0%
0%
3 Star
3%
3%
2 Star
3%
3%
1 Star
32%
32%

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RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Oct 01, 2023
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
What could be improved
No results
Helpful
May 06, 2022
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
3 people found this helpful
Helpful
Mike – Dec 30, 2020
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Renee – Dec 15, 2020
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What went well
No results
What could be improved
No results
Helpful
Jan 13, 2020
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Lisa Robertson in IL – Apr 02, 2019
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Bloomingdale – Jan 23, 2018
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What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Bryan Compton in St. Charles IL. – Apr 04, 2017
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
marge in ELK GROVE VILLAGE – Mar 29, 2017
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Hoffman Estates, IL – Mar 29, 2017
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What went well
  • Appointment scheduling
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
2 people found this helpful
Helpful
Vb in Aurora, IL – Feb 25, 2017
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What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
4 people found this helpful
Helpful
Wheaton, IL – Feb 17, 2017
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
5 people found this helpful
Helpful
Chicago, IL – Oct 18, 2016
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What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
7 people found this helpful
Helpful
IL – Jun 30, 2016
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
8 people found this helpful
Helpful
Aurora, IL – Mar 05, 2016
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
6 people found this helpful
Helpful
Linda in Aurora, IL – Feb 18, 2016
×Post a ResponseAre you Dr. William Bayer, MD?
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Didn't trust the provider's decisions
  • Long wait times
9 people found this helpful
Helpful
Jan 13, 2016
×Post a ResponseAre you Dr. William Bayer, MD?

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Know Before You Go

About Me

care philosophy

``Better people means better experiences. Our care team is committed to delivering results that change lives.`` 

  • Endocrinology, Diabetes & Metabolism

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Loyola University Medical Center

    Fellowship Hospital

  • Loyola Medical Center

    Residency Hospital

  • Loyola University Chicago Stritch School Of Medicine

    Medical School, 1986
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Diabetes, Metabolism & Endocrinology
- 
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

Focus on Diabetes

Locations

Northwestern Medicine Regional Medical Group

Northwestern Medicine Regional Medical Group233 S Gary Ave # 204 Bloomingdale, IL 60108
1

Northwestern Medicine Regional Medical Group

Northwestern Regional Medical Group501 Thornhill Dr Carol Stream, IL 60188
2

Affiliated Hospitals

  • Northwestern Medicine Central Dupage Hospital

    25 N Winfield Rd
    Winfield, IL 60190
    Recipient of 8
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Outstanding Patient Experience Award™ (2024, 2022)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    87%
    Patients said they were given information about recovering at home

    3% higher than the national average

    80%
    Patients would recommend the hospital to friends and family

    15% higher than the national average

    View all patient feedback

  • Edward Hospital-Main Campus

    801 S Washington St
    Naperville, IL 60540
    Recipient of 9
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Outstanding Patient Experience Award™ (2023, 2022)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    84%
    Patients said they were given information about recovering at home
    78%
    Patients said that doctors always listened to them and explained things well

    2% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality