A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. John Siegfried:
View the full profile to get information on:
- What's important to you
View full profile
- Currently 4 of 4 stars
The overall average patient rating of Dr. John Siegfried is Excellent.
|Ease of Appointment||
|Spends Time with Me||
|Follows Up After Visit||
Specialties & Research
Dr. John Siegfried, MD is board certified in Internal Medicine and Gastroenterology.
- He has special expertise in 1 area:
- Crohn`s disease Hemorrhoid treatment Ulcers-general Age 16 Hiatal hernia Hepatitis Abdominalcolorectal cancer
Education & Awards
Dr. Siegfried graduated from University of Illinois at Chicago.
Dr. Siegfried has 12 hospital affiliations:
- Edward Hospital
- Rush Copley Medical Center
Accepted Insurance Plans
Dr. Siegfried accepts these health insurances in at least one office:
- United Healthcare - 2 plans
- Unicare - 2 plans
- Cigna - 6 plans
- Humana - 2 plans
Similar doctors nearby
- Additional Information
- Where does Dr. John D. Siegfried practice?
Dr. John Siegfried practices Internal Medicine, Gastroenterology, Allergy & Immunology, and Pediatrics near Aurora, IL.
Additional practice locations include: Champaign, IL.
See Aurora Internists, Aurora Gastroenterologists, Aurora Allergists, and Aurora Pediatricians.