4
30 Ratings with 15 written Reviews
Summary
Dr. Mark Fedder specializes in gastroenterology and internal medicine, bringing over four decades of medical expertise to his practice. He earned his medical degree from the University of Illinois at Chicago College of Medicine and completed his residency at the University of Illinois College of Medicine. With 44 years of experience treating digestive health conditions, Dr. Fedder has developed extensive knowledge in both routine and complex gastrointestinal care. He communicates with patients in English.
Dr. Fedder practices at multiple locations throughout Illinois, including Edwardsville, Maryville, and Granite City, with affiliations at Anderson Hospital and Gateway Regional Medical Center. His clinical focus includes treating colon polyps, hemorrhoids, and diverticular disease. He performs essential diagnostic procedures such as colonoscopy and lower gastrointestinal endoscopy with sedation to ensure patient comfort during examinations. Patients have given Dr. Fedder an average …rating of 4.0 out of 5 stars on Vitals.
Read More Read less Dr. Fedder practices at multiple locations throughout Illinois, including Edwardsville, Maryville, and Granite City, with affiliations at Anderson Hospital and Gateway Regional Medical Center. His clinical focus includes treating colon polyps, hemorrhoids, and diverticular disease. He performs essential diagnostic procedures such as colonoscopy and lower gastrointestinal endoscopy with sedation to ensure patient comfort during examinations. Patients have given Dr. Fedder an average …rating of 4.0 out of 5 stars on Vitals.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 44 years of experience
- speaks English
- University Of Illinois College Of Medicine
- 15 written reviews
- 2 specialties
- 11 areas of expertise
- 2 board certifications
- 2 hospital affiliations
- 4 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Mark Stephen Fedder has 4 locationsAnderson Surgery Center Llc
3403 Anderson Healthcare DrEdwardsville, IL 62025Mon7:00 am - 3:30 pm
Tue7:00 am - 3:30 pm
Wed7:00 am - 3:30 pm
Thu7:00 am - 3:30 pm
Fri7:00 am - 3:30 pm
SatClosed
SunClosed
Fedder Mark S Office
6812 State Route 162 Ste 211Maryville, IL 62062 Tel: (618) 288-0346
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 4:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Mark Stephen Fedder, MD | Ji Soo Choi, APRN | Jan Seiler, APRN | Dr. Larry Emil Alves, MD |
| Gastroenterology | Gastroenterology | Gastroenterology | Cardiovascular Disease |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 44 Years of Experience | |||
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | |
| Edwardsville , IL | SACRAMENTO , CA | Montgomery , AL | Troy , IL |
| Med School: University Of Illinois At Chicago College Of Medicine | Med School: New York University | Med School: Georgia State University | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mark Stephen Fedder
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Mark Stephen Fedder has the following 2 specialties
Specialty Expertise
Dr. Mark Stephen Fedder has the following 11 areas of expertise
Certifications, License, & Education
44 Years Experience
Dr. Mark Stephen Fedder holds an active medical license in the state of Illinois.
Medical License
Medical Doctor with an active medical license in the state of Illinois that expires in 2026.
Education & Training
Residency
Completed their residency at University Of Illinois College Of Medicine.
Medical School
Graduated from University Of Illinois At Chicago College Of Medicine in 1982.
NPI Number
Dr. Fedder's NPI number is 1922009943.
Similar doctors
Frequently Asked Questions
- Is Dr. Mark Fedder accepting new patients?
- Dr. Mark Fedder is accepting new patients on Vitals. View Dr. Mark Fedder's profile on Vitals to make an appointment.
- Does Dr. Mark Fedder accept my insurance?
- You can see the insurance plans that Dr. Mark Fedder accepts on their Vitals profile.
- Which hospitals is Dr. Mark Fedder affiliated with?
- Dr. Mark Fedder is affiliated with Anderson Hospital and Gateway Regional Medical Center.
- Where is Dr. Mark Fedder's office located?
- Dr. Mark Fedder's office is located at 3403 Anderson Healthcare Dr, Edwardsville, IL, 62025.
- Does Dr. Mark Fedder accept virtual/telehealth appointments?
- Dr. Mark Fedder has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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.
