


Dr. Mark Allendorph, MD
Dr. Mark Allendorph, MD is a gastroenterologist in Alton, IL and has over 40 years of experience in the medical field. He graduated from Rosalind Franklin University Chicago Medical School in 1980. He is accepting new patients.
Mark M Allendorph MD
111 E 4th St Ste 220 Alton, IL 62002Make an Appointment
At a Glance
- Areas of ExpertiseDr. Allendorph specializes in the areas of Gastroenterology & Internal Medicine. • See board certifications
- Explains Conditions Well
- Trustworthy

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Dr. Allendorph's Reviews
Likelihood to recommend Dr. Allendorph
4.5
5 Star | 88% | 88% |
4 Star | 0% | 0% |
3 Star | 0% | 0% |
2 Star | 0% | 0% |
1 Star | 13% | 13% |
Overall Patient Satisfaction
Likelihood of recommending Dr. Allendorph to family and friends is 4.5 out of 5
About Me
biography
Dr. Mark Allendorph, MD is a gastroenterologist in Alton, IL and has over 40 years of experience in the medical field. He graduated from Rosalind Franklin University Chicago Medical School in 1980. He is accepting new patients.Gastroenterology
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.
Rosalind Franklin University Chicago Medical School
Medical School, 1980
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.
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Mark M Allendorph MD
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