4.8
49 Ratings with 36 written Reviews
Summary
Dr. John Fiedler treats chronic kidney disease and type 2 diabetes mellitus and has practiced internal medicine for 33 years. He is affiliated with Prime Healthcare Saint Joseph Hospital Elgin.
Board-certified in internal medicine by the American Board of Internal Medicine, Dr. Fiedler received his medical degree from Loyola University Chicago Stritch School of Medicine and completed his residency at the University of Michigan. He sees patients in Elgin, Illinois. Patients on Vitals rate Dr. Fiedler 4.78 out of 5.
Board-certified in internal medicine by the American Board of Internal Medicine, Dr. Fiedler received his medical degree from Loyola University Chicago Stritch School of Medicine and completed his residency at the University of Michigan. He sees patients in Elgin, Illinois. Patients on Vitals rate Dr. Fiedler 4.78 out of 5.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 33 years of experience
- 30 insurance plans accepted
- speaks English
- University of Michigan Program
- 36 written reviews
- 1 award
- 1 specialty
- 7 areas of expertise
- 1 board certification
- 1 hospital affiliation
- 1 office location
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Awards
Vitals Preferred Provider
Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.
- Click for our Methodology
Office Location
Compare with Similar Doctors
 |  |  |  |
| John Fiedler, MD | Dr. Firas Aubeid, MD, MBA, FACP | Dr. Adewumi Bakare DMSc, PA-C | Dr. Steven Rocco Nudo, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Diagnostic Radiology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 33 Years of Experience | 19 Years of Experience | 28 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | Speaks English |
| Elgin , IL | New Lenox , IL | Mesquite , TX | Westmont , IL |
| Med School: Loyola University Chicago Stritch School of Medicine | Med School: University Of Aleppo Faculty Of Medicine | Med School: University of Lynchburg - DMSc | Med School: Creighton University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by John Fiedler
Medical Specialties
John Fiedler has the following specialty
Specialty Expertise
John Fiedler has the following 7 areas of expertise
Certifications, License, & Education
33 Years Experience
John Fiedler holds an expired medical license in the state of Illinois. They are board certified in Internal medicine by the American Board of Internal Medicine.
Board Certifications
Board certified in Internal medicine by the American Board of Internal Medicine.
Medical License
Medical Doctor with an expired medical license in the state of Illinois that expired in 2026.
Education & Training
Residency
Completed their residency at University of Michigan Program, University Of Michigan Hospitals, and Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine.
Medical School
Graduated from Loyola University Chicago Stritch School of Medicine in 1993 and Loyola Univ of Chicago Stritch Sch of Med, Maywood Il in 1993.
NPI Number
John Fiedler's NPI number is 1487623716.
Similar doctors
Frequently Asked Questions
- Is John Fiedler accepting new patients?
- John Fiedler is accepting new patients on Vitals. View John Fiedler's profile on Vitals to make an appointment.
- What languages does John Fiedler speak?
- John Fiedler speaks English.
- Does John Fiedler accept virtual/telehealth appointments?
- John Fiedler has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is John Fiedler's office located?
- John Fiedler's office is located at 745 Fletcher Dr, Elgin, IL, 60123.
- How can I make an appointment with John Fiedler?
- You can find contact information for John Fiedler here on Vitals.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Board certification bodies (such as ABMS)
- Healthcare system and provider network data
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.
