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Dr. Mark Allendorph, MD

Gastroenterology* Age 70
Dr. Mark Allendorph, MD
4.5 (8 Ratings)
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Dr. Mark Allendorph, MD is a Gastroenterology Specialist in Alton, IL.
Dr. Mark Allendorph, MD
4.5 (8 Ratings)
 Share
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Link Copied!
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Dr. Mark Allendorph, MD

Gastroenterology* Age 70
Alton, IL
Accepting new patients
44 years of experience
Dr. Mark Allendorph, MD is a Gastroenterology Specialist in Alton, IL.

About

Dr. Mark Allendorph, MD is a Gastroenterology Specialist in Alton, IL and has 44 years experience. They graduated from Rosalind Franklin University Chicago Medical School. They currently practice at Mark M Allendorph MD. At present, Dr. Allendorph received an average rating of 4.5/5 from patients and has been reviewed 8 times. Their office accepts new patients. Dr. Allendorph is board certified in Gastroenterology and Internal Medicine.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Experience Check

Enter a condition or procedure
Abdominal Pain
Anal or Rectal Pain
Anal Prolapse
Abdominal Pain
Anal or Rectal Pain
Anal Prolapse
Abdominal Pain
Anal or Rectal Pain
Anal Prolapse
Anemia
  • View other providers who treat Anemia
Barrett's Esophagus
Benign Neoplasm of the Digestive System
Celiac Disease
Cholecystitis and Gallstones
Cirrhosis
Colorectal Cancer
Constipation
Crohn's Disease
Dehydration
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Duodenal Ulcer
Duodenitis
Dysentery
Dysphagia
Enteritis
Esophageal Achalasia and Cardiospasm
Esophageal Cancer
Esophageal Diverticulum
Esophageal Ulcer
Esophageal Varices
Esophagitis
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Heartburn
Hemochromatosis
Hemorrhoids
Hepatitis C
Hernia
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Ileus
  • View other providers who treat Ileus
Indigestion
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Irritable Bowel Syndrome
Liver Damage from Alcohol
Malnutrition
Nausea
  • View other providers who treat Nausea
Neoplasm of Gastrointestinal Tract
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Pancreatitis
Peptic Ulcer
Reflux Esophagitis
Stomal Ulcer
Ulcerative Colitis
Unexplained Weight Loss
Vascular Insufficiency of Intestines
Viral Enteritis
Viral Hepatitis
Vomiting Disorders
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Endoscopy (Esophagus, Stomach, Small Intestine)

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Cigna HMO
    Cigna PPO
    LocalPlus
    Open Access Plus

Locations

  1. 1 Mark M Allendoph MD
    111 E 4th St Ste 220, Alton, IL 62002
    Icon Directions Right Arrow Directions Phone Icon (618) 465-5849

Patient Satisfaction

Likelihood to recommend Dr. Allendorph
4.5
Based on 8 Reviews
5 Stars (7)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (1)

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Dr. Allendorph's Office & Staff

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  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Allendorph

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  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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About Me

Specialties*
Gastroenterology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • Rosalind Franklin University Chicago Medical School
    1980
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Allendorph communicate via email?
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Does Dr. Allendorph offer telehealth services or virtual visits?
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Does Dr. Allendorph specialize in working with children or adolescents?
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Mark Allendorph, MD. To arrange an appointment, call the number on Dr. Allendorph's profile.

Yes, Dr. Mark Allendorph, MD holds board certification in Gastroenterology and Internal Medicine.